Katalog_KTS_2012_en

KTS | Catalogue 2012/2013

Cable support systems

THINK CONNECTED.

2 OBO KTS

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Welcome to Customer Service

Service telephone: +49 (0)2373 89-1500

Telefax for enquiries: +49 (0)2373 89-7777

Fax for orders: +49 (0)2373 89-7755

E-mail: [email protected]

Internet: www.obo-bettermann.com

Use the direct line to OBO Customer Service! We are available on our Service Hotline on +49 (0)2373 891 500from 7.30 a.m. to 5.00 p.m. for any questions to do with the OBO complete product range for electrical installa-tions. The newly structured OBO Customer Service can offer you the full service: Competent contacts from your region All the information on the OBO product range Knowledgeable advice on special application topics Quick, direct access to all the technical data of the OBO products we also want to provide the best in

customer relations!

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3OBOKTS

Planning aid 5

Mounting systems 157

Fastening systems 203

Cable tray systems 217

Cable tray systems, walk-on 261

Mesh cable tray systems 269

Cable ladder systems 289

Wide span systems 307

Vertical ladder systems 327

Luminaire support systems 347

Modular systems 361

Stainless steel systems V2A 369

Stainless steel systems V4A 423

Directories 451

Contents

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OBO KTS seminars: First-handknowledgeWith a comprehensive range oftraining courses and seminars oncable support systems, OBO isable to provide users with first-hand support. Alongside the basictheoretical principles, the pro-gramme also deals with practicalimplementation in everyday appli-cations. Special calculation andapplication examples round off thecomprehensive programme ofknowledge transfer.

Invitations to tender, product in-formation and datasheetsWe can make life easier for you,with our comprehensive selectionof materials designed for practicalapplications, which provide youwith effective support with theplanning and calculation of aproject. These include: Invitations to tender Product information Information sheets DatasheetsThese documents are continuallyupdated and can be downloadedat no charge at any time from theInternet download area atwww.obo.de.

Invitations to tender on the Inter-net at www.ausschreiben.deMore than 10,000 entries from theKTS, BSS, TBS, LFS, EGS andUFS ranges can be called up freeof charge. Regular updates andextensions mean that you alwayshave a comprehensive overview ofthe OBO products. All the currentfile formats PDF, DOC, GAEB,HTML, TEXT, XML, NORM areavailable.www.ausschreiben.de

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5OBOKTS

General planning aid 5

Mounting systems 39

Fastening systems 61

RKSM cable tray systems 67

Walk-on cable tray system 89

Mesh cable tray systems 95

Cable ladder systems 109

Wide span systems 117

Vertical ladder systems 127

Luminaire support systems 133

Modular systems 141

Stainless steel systems 147

Additional information 150

Contents of planning and mounting aids

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The new generation is there: OBO Construct Professional and OBO Con-struct Web

We have reinvented our Con-struct planning software: wehave bundled all the electronicplanning aids under the nameOBO Construct.

Two versionsThere are now two versions ofOBO Construct: Construct Weband Construct Professional. Theyare now aligned to the different re-quirements of our customers andoffer the following scope of ser-vice:

OBO Construct ProfessionalThe completely new tool for pro-fessional users. The new multilin-gual AutoCAD plug-in is availablein various languages and offersthe user a wealth of benefits: Redesigned user dialogues. Simplified operation. Improved component depic-

tion. Individual adjustment of object

display. Completely new system (runs

on 64-bit systems). Mass determination with addi-

tional materials. Output of the mass determina-

tion in various formats (Excel,PDF, Text)

Simpleupdates Importableandeditable invita-

tions to tender

OBO Construct WebThe Internet version for rapid helpnow no longer needs a CAD sys-tem and offers the following bene-fits: Simple operation For quick and easy application Platform-independent No installation required Access possible from any-

where Option of saving project data Plans can be printed out as

PDFs Exact mass determination in

an Excel file Additional material bookable

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7OBOKTS

OBO Construct KTS: Project planning, drawing, generation

Find out nowConvince yourself about the newOBO Construct: a new supportand training concept makes it easi-er than ever for you to take yourfirst steps. You can find additionalinformation on the Internet or fromour Customer Service.

AutoCAD is a registered trade-mark of Autodesk Incorporation,USA.

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Standards, regulations and tests

Standardised work offers protec-tionOBO offers cable support systemsmade by professionals for profes-sionals: The technical propertiesare guaranteed by DIN EN 61537(follow-up to DIN VDE 0639). It de-scribes all the relevant parameters from the area of application,through test conditions, up to cor-rosion resistance and temperatureclassification. As a competentmanufacturer of cable support sys-tems, OBO subjects itself to theserequirements on a daily basis. Thetests described below guaranteethe use of systems which fulfil therequirements of the systems.

Suitable protective clothing is re-quired for safe handling duringtransport and processing.

CE-conformantAll products in this catalogue areCE-compliant in accordance withthe appropriate EC directives. Thisalso applies to standard partssuch as bolts, washers and nutsthat are components of variousproduct systems. The appropriateEC declaration of conformity certi-fies agreement with the named di-rectives or standards, but does notguarantee properties. The safetyinstructions in the supplied prod-uct information and the generalsafety regulations must be com-plied with during installation anduse.

Testing, equipotential bond-ing/protective conductorCable support systems must pos-sess sufficient conductivity. Onlythis can ensure that the equipoten-tial bonding and the connection tothe earth potential is sufficient. Areduction in conductivity is oftenthe result of contact resistances atjoints.To keep these contact resistancesto a minimum on the OBO cablesupport systems, during the devel-opment process we placed greatemphasis on a stable connection,which is free of contact resistance.Of course, the developed systemswere tested in the BET laboratory.In this catalogue, the tested arti-cles are marked with the testmarks shown below. You can re-quest the appropriate test reportsat any time via our hotline.

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9OBOKTS

Inclusion of the protective measures

Load tests for cable support sys-temsAll the OBO articles and systemsare subjected to practical loadtesting. The basic principlesfor thetests of OBO cable support sys-tems are included in DIN EN61537 and DIN VDE 0639. Afterthe load test, the maximum loadcapacity can be determined foreach component, depending onthe support distances and specificarticle parameters, such as com-ponent dimensions. This is allshown in a chart, included witheach component.You can find additional informationon the load tests for cable trays,brackets and suspended supportsin this catalogue. The values givendo not take resistance against en-vironmental forces such as snow,wind and other outside influencesinto account.

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Definition of electromagnetic compatibility (EMC)

In recent years, the use of elec-tronic circuits has increased con-tinually. Whether in industrialsystems, medicine, households,in telecommunications systemsor electrical building installations everywhere, we see powerfulelectric equipment and systems,which switch ever greater cur-rents, achieve greater radioranges and transport ever moreenergy in smaller spaces.

However, the use of state-of-the-arttechnology means that the com-

plexity of applications also increas-es. The consequence of this is thatever more opposing influences(electromagnetic interference) canoccur from system parts and ca-bles, causing damage and eco-nomic losses.

Here, we talk of electromagneticcompatibility.Electromagnetic compatibility(EMC) is the ability of an electricalunit to function satisfactorily in itselectromagnetic environment, with-out inappropriately influencing thisenvironment, to which other unitsalso belong (VDE 0870-1). In

terms of standardisation, electro-magnetic compatibility is dealt withby the EMC directive2004/108/EC. This means thatelectrical resources emit electro-magnetic interferences (emission),which are picked up by other de-vices or units (immission) whichact as receivers (interference sink).This means that the function of aninterference sink can be severelyreduced, meaning, in the worstcase, total failure and economiclosses. The interferences canspread along cables or in the formof electromagnetic waves.

Path of faults

Fault source (transmitting emissions) Coupling of interference variables(spreading of interference) Fault sink (receiving emissions)

For example- Mobile telephones- Switching components- Ignition systems- Frequency converters- Lighting strike- Welding devices

- Galvanic- Inductive- Capacitive- Electromagnetic

- Process computer- Radio receiver systems- Controllers- Converters- Measuring units

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11OBOKTS

Guarantee of EMC

Guarantee of EMCA systematic planning process isnecessary to guarantee EMC. Theinterference sources must be iden-tified and quantified. The couplingdescribes the spread of the inter-ference from the interferencesource up to the influenced de-vice, the interference sink. Thetask of EMC planning is to ensurethe compatibility at the source,coupling path and sink using suit-able measures. During their dailywork, planners and installation en-gineers are confronted with thissubject on an increasingly regularbasis. This means that EMC is abasic factor to be taken into con-sideration during the planning ofinstallations and cabling systems.Due to the high complexity of elec-tromagnetic compatibility, theproblems of EMC must be ana-lysed and solved using simplifyinghypotheses and models as well asexperiments and measurements.

Cable support systems and theircontribution to EMCCable support systems can makean important contribution to the im-provement of EMC. They are pas-sive and can thus make a safe,long-lasting contribution to EMCthrough the fact that cables arerun within cable support systemsor are shielded by them. Routingcables inside cable support sys-tems greatly reduces the galvanicdecoupling and coupling due toelectrical and magnetic fields inthe cables. Thus cable supportsystems can make a contributionto the reduction of coupling fromthe source to the sink. The shield-ing action of cable support sys-tems can be quantified by the cou-pling resistance and the shield at-tenuation. This gives the plannerimportant engineering parametersfor cable support systems for theEMC engineering.

Lightning dischargeFrom the analysis of the effective-ness of EMC in buildings (EN62305-4), we know that lightningdischarge is one of the greatestsources of interference to be ex-pected. This causes a direct cur-rent feed into the entire equipoten-tial bonding system in the buildingand/or to magnetic decoupling ofinterference currents in electricalcables. With regard to these cou-plings, cable support systems canoffer an effective contribution tothe reduction of interference volt-ages.

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Magnetic shield insulation of cable support systems

The magnetic field (H) of strength 3 kA/m in a defined experimental setup: without cable supportsystem on the left, with cable support system on the right. 1 = Field H, 2 = V

1 LzuPE

The magnetic shield insulation ofcable support systems is the ratioin decibels (dB) of an induced volt-age into an unprotected cable tothe induced voltage into the samecable, when this is in a cable sup-port system.

Experimental structure to deter-mine the magnetic shield insula-tion of cable support systems:An unshielded cable (NYM-J 5x6mm) is subjected to an 8/20magnetic field with a strength of 3kA/m. Here, the induced voltage

V1 is measured in the unshieldedcable. The same cable is then po-sitioned in the centre of a cablesupport system (once with a cover,once without) and subjected to thesame magnetic field of 3 kA/m.Here, the induced voltage V2 ismeasured in the unshielded cable.The magnetic shield insulation iscalculated from the measured val-ues according to the formula:

S = 20 log (V1/V2) dB

Experiment result:The magnetic shield effect

S of a

cable support system could beclearly proved by the experimentsand the simulation with an FEMprogram.The best result of around 50 dBwas achieved with cable supportsystems (cable trays) with covers.Note:The shield insulation against elec-trical fields is almost perfect, like aFaraday cage.

Magnetic shield insulation 8/20 dBType, cable tray / cable ladder Without cover With cover

RKSM 630 FS 20 50

MKS 630 FS 20 50

MKS 630 FT 20 50

MKSU 630 FS 20 50

MKSU 630 FT 20 50

MKSU 630 VA 20 50

GRM 55/300 FS 15 25

LG 630 NS FT 10 15

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13OBOKTS

Transfer impedance of cable support systems

Experimental structure for transfer impedance: 1 = Length l, 2 = U, 3 = I, 4 = Pulse source 8/20

VInterference

: Interference voltage measured in ca-ble

IInterference

: Interference current, fed into the shiedfrom outside (KTS)

L : Length of the cable support system

Transfer impedance (coupling re-sistance) of cable support sys-temsThe transfer impedance of a cablesupport system is the ratio of themeasured voltage V

Interference, mea-

sured in the lengthwise directionwithin the cable support system, tothe coupled current I

Interference.

The transfer impedance is deter-mined in the same way as with themeasurement of the electrical con-ductivity properties in Chapter11.1. (DIN EN 61537).If there is a lightning strike in abuilding, partial currents will flowthrough the entire equipotentialbonding system.Installed cables are best run within

a cable support system. Installedcable support systems are alwaysincluded in the equipotential bond-ing system. In so doing, the partialcurrent flows via the cable supportsystem. A very small componentcan therefore still flow along thecables laid within the cable sup-port system. This component isdetermined by the transfer imped-ance of the cable support system.The following applies for the trans-fer impedance: Z

T = V

Interfer-

ence/(I

Interference x L) [m/m]

The values given are based onmeasurements, in which a pulsecurrent of the wave shape 8/20was passed through a definedlength of a cable support system.

Experiment result:The effect of the cable supportagainst galvanic coupling wasclearly proved by the experiments!The best result was achieved withcable support systems (cabletrays) with covers.

Transfer impedance 8/20 mOhm/mType, cable tray / cable ladder Without cover With cover

MKS 630 FS 1.14 0.71

MKS 630 FT 1.14 0.71

MKSU 630 FS 0.44 0.09

MKSU 630 FT 0.44 0.09

GRM 55/300 FS 6.17 5.5

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Contact corrosion

Contact corrosion between twodifferent metals poses a consid-erable risk to the load capacityand lifespan of cable supportsystems.

Height of the potential differenceThe level of contact corrosion isprimarily determined by the levelof the potential difference betweenthe contact partners. Contact cor-rosion occurs at potential differ-ences of 100 mV or greater andthe anodic (electrically negative)partner is at risk of corrosion.Therefore, strongly non-preciousmetals should never be brought in-to contact with precious metals.

Addition contact corrosion crite-ria Level of electrical resistance

between the contact partners.The higher the resistance, thelower the contact corrosion.Positive on Al and Ti.

Occurrence of an electrolyte.An electrolyte, such as perspi-ration or condensate attacksthe protective layers, increas-ing conductivity. Dirt increasesthis effect through releasedions.

Length of the impact of theelectrolyte. The longer theelectrolyte is at the work, thegreater the corrosion will be.

Surface ratio of the contactpartners. These influence theflow density. The best thing tohave is a small surface ratio ofthe "precious" to the "less pre-cious" contact partner.

Potential difference

Standard potential Practical voltage series, water pH 6 Practical voltage series, arti-ficial sea water pH 7.5

Metal mV Metal mV Metal mV

Copper +340 Titanium 136 Nickel 1

Lead -126 Brass MS 63 100 Brass MS 63 32

Tin -140 Copper 94 Copper -35

Nickel -230 Nickel 73 RF steel 1.4301 -90

Iron -440 RF steel -129 Titanium -156

Zinc -763 Aluminium -214 Lead -304

Titanium -1630 Hard chromium -294 Hard chromium -336

Aluminium -1660 Tin 98 -320 Steel -380

Magnesium -2370 Lead 99.9 -328 Aluminium -712

Steel -395

Zinc -852

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15OBOKTS

Contact corrosion

Land climate

Material component (large) Material construc-tion element (small)

OBO designation Composite materialCoating

FT VA AL CU MSZa-mak

Steel, galvanised(FT, FS, DD, G)

DD11/Zn, S234(St37)/Zn, ST4-2/Zn,St500-2/Zn, StW22/Zn, DX51D/Zn

0 0 0 2 1 0

Stainless steelV2A, V4A, V5A

1.4301, 1.4310, 1.4401, 1.4404,1.4571, 1.4529

0 0 1 1 1 0

AluminiumAl AlMg3, AlMgSi0.5 0 0 0 2 1 0

CopperCu

E-Cu S7, F24, Se-Cu(2.0070), SF-CuF24, St50-2

1 1 1 0 1 2

Brass Ms1 CuZn39Pb3, CuZn40Pb2 0 1 1 1 0 2

Brass MS2 CuZn37 0 2 1 1 0 2

Die-cast zincZamakZnAlCu1

Z410(GD-ZnAl4Cu1) 1 1 0 3 1 0

Legend0 No risk for contact corrosion1 Low risk2 Risk in case of small area ration (area of non-precious metal / area of precious metal)3 High risk

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Contact corrosion

Industrial atmosphere






0 0 1 3 2 0


1.4301, 1.4310, 1.4401, 1.4404,1.4571, 1.4529

0 0 1 1 1 0


CopperCu


2 2 3 0 1 2


Brass MS2 CuZn37 1 1 3 1 0 1


Z410(GD-ZnAl4Cu1) 0 0 0 3 2 0


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17OBOKTS

Contact corrosion

Sea climate






0 1 3 3 2 1


1.4301, 1.4310, 1.4401, 1.4404,1.4571, 1.4529

1 0 3 1 1 0


CopperCu


2 2 3 0 1 2


Brass MS2 CuZn37 1 1 3 1 0 1


Z410(GD-ZnAl4Cu1) 0 0 0 3 2 2


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Surface testing and corrosion categories

Surface testing/salt spray misttestAll the system components mustshow sufficient resistance againstcorrosion in agreement with theKTS standard, DIN EN 61537. Theminimum zinc layer thicknessesare determined through a mea-surement. The grouping into theappropriate class is located at theright of the table. The top of the ta-ble shows the area of applicationand the zinc loss to be expectedaccording to DIN EN ISO 12944.

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19OBOKTS

Surface testing and corrosion categories

Corrosion categories to DIN EN ISO 12944Corrosioncategory Typical environment, inside Typical environment, outside

Corrosionload

Averagezinc loss

C 1Heating buildings with neutral atmospheres,e.g. offices, shops, schools, hotels

- Insignificant

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Surfaces for use in internal areas

Whether indoors or outdoors, inaggressive atmospheres or underspecial hygienic conditions: OBOcan offer the perfect surface andmaterials for your cable supportsystem, no matter what the re-quirements may be. OBO cablesupport systems are machinedfrom high-quality sheet steel orsteel wire and are available withvarious surfaces. Different hard-ening and coating methods en-sure tailor-made corrosion pro-tection, specially tailored to theappropriate application. In addi-tion, OBO cable support systemsare available in stainless steeland with coloured coatings.

Indoor useFor applications in indoor areas,OBO can offer cable support sys-tems with galvanisation or stripgalvanisation. They are particularlysuited to dry atmospheres withoutany impact from aggressive pollu-tants.

Electro-galvanisation Electrolytic galvanisation in ac-

cordance with DIN EN 12329 Average coating thickness ap-

prox. 2.510 m According to RoHS guidelineComponents: Mesh cable traysand small parts such as bolts,washers and nuts

Strip galvanisation Hot-dip galvanised according

to the strip-galvanising methodin accordance with DIN EN10346 (formerly DIN EN10327)

Average coating thickness ap-prox. 20 m

Joints in the metal are protect-ed by cathodic corrosion pro-tection up to a thickness of 2.0mm

Components: Metal products suchas cable trays, fittings and separat-ing retainers.

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21OBOKTS

Surfaces for use in external areas

Outdoor useOBO can offer versions with hotdip galvanisation and double-dipgalvanisation for outdoor and wetroom use.

Hot-dip galvanisation Hot galvanisation using the

dipping method according toDIN EN ISO 1461

Coating thickness to DIN ENISO 1461 approx. 4060 m

Any interfaces added at a laterdate must also be galvanisedto protect against corrosion

Components: Sheet steel productssuch as cable trays and weldedcomponents such as supports andbrackets

Double-dip galvanisation Hot dipping with zinc-alumini-

um coating in accordance withDIN EN 10346

Average coating thickness ap-prox. 23 m

Joints in the metal are protect-ed by cathodic corrosion pro-tection up to a thickness of 2.0mm

Components: Metal products suchas covers, separating retainersand punched parts.

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Surfaces for use in tunnels, food or chemical industries

Applications: Tunnel construc-tion, food or chemical industriesThere are also OBO stainless steelsystems for special hygiene andquality requirements for specialvisual criteria for open wiring.

SS304 stainless steel OBO Code: V2A European material number:

1.4301 American material designation:

304 Welded components are addi-

tionally passivated Unwelded components are

rinsed and degreasedComponents: V2A selection pro-gramme with the title "V2A stain-less steel systems"

SS316 stainless steel OBO Code: V4A European material number:

1.4571 American material designation:

316 / 316 Ti Welded components are addi-

tionally passivated Unwelded components are

rinsed and degreasedComponents: V4A selection pro-gramme with the title "V4A stain-less steel systems"

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23OBOKTS

Surfaces for special visual requirements or special environmental loads

Applications with specific opticalrequirements or special environ-mental conditionsColour-coated cable support sys-tems are becoming ever morepopular. The coating may be re-quired for optical reasons or forreasons of corrosion protection:

Colour coatings for reasons ofcorrosion protection Cable support system in FT

(hot-dip galvanised version) All RAL colours available Coating of the visible surfaces

and/or the complete system Suitable for the colour of the

structure when routed openly Separation of different volt-

ages/functions (e.g. blue230/400 V power supply; redweak current such as tele-phone line and IT)

Colour-coated systems are notindicated specially in this cata-logue. You can obtain details forthese systems by contacting ourtelephone hotline on +49 (0)237389-1500.

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Which cabling method is used?

Not all cables are the same. Toselect the perfect cable supportsystem, you need to know whichtype of cables are to be laid: Arethey sensitive data cables, whichmust be laid at a certain distancefrom each other on account ofthe necessary shielding? Or pow-er cables, for which a not incon-siderable heat build-up must beallowed for? For all these appli-cations OBO can offer tailor-made system solutions.

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25OBOKTS

Universal cable traysAreas of application: From lowvoltage cabling to power supply.

Mesh cable trays for the installa-tion of light cablesAreas of application: IT cabling,telephone cabling and control ca-bles. Also suitable for use in falseceilings and cavity floors.

Cable ladders for power cableswith a large cross-sectionAreas of application: Cables andpower conductors with largecross-sections. These can be fas-tened to the rungs using clampclips. The high load capacity andgood ventilation ensure perfect ca-ble laying.

Wide span cable trays and lad-ders for large support distancesAreas of application: For installa-tions in which the support dis-tances are more than three me-tres, on account of the construc-tion conditions.

Modular system for special tasksThe product range that knows nobounds. The range of individuallycombinable products is particularlysuited to complex installationtasks.

AZ small duct for universal useAreas of application: for luminairesupport systems through to low-voltage cabling and power supply.

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How can I work out the volume of cables?

The usable cross-section of the cable simulates the cavity in real laying.

Cable diameter (1) and space required (2)

An important criterion for the se-lection of the correct cable supportsystem is the cable volume, forwhich there must be sufficientspace in the cable tray. As the ca-bles are never packed tightly to-gether or are absolutely parallel, itis not enough to base the volumecalculation solely on the cable di-ameter A realistic calculation isprovided by the formula (2r). Tosave you work, we have listed thediameter and usable cross-sectionof the most important cable typesbelow.Important: These values are aver-age values, which may vary frommanufacturer to manufacturer.Please refer to the manufacturer'sspecifications for the exact values.

Calculation with the formula (2r)The diameter says little about theactual space required by a cable.Calculate: (2r). This value reflectsthe realistic space requirements,including the compartments.

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27OBOKTS

How can I work out the volume of cables?

Insulated power cables

Type Diametermm

Usable cross-section cm

1 x 4 6.5 0.42

1 x 6 7 0.49

1 x 10 8 0.64

1 x 16 9.5 0.9

1 x 25 12.5 1.56

3 x 1.5 8.5 0.72

3 x 2.5 9.5 0.9

3 x 4 11 1.21

4 x 1.5 9 0.81

4 x 2.5 10.5 1.1

4 x 4 12.5 1.56

4 x 6 13.5 1.82

4 x 10 16.5 2.72

4 x 16 19 3.61

4 x 25 23.5 5.52

4 x 35 26 6.76

5 x 1.5 9.5 0.9

5 x 2.5 11 1.21

5 x 4 13.5 1.82

5 x 6 14.5 2.1

5 x 10 18 3.24

5 x 16 21.5 4.62

5 x 25 26 6.76

7 x 1.5 10.5 1.1

7 x 2.5 13 1.69


Type Diametermm


1 x 10 10.5 1.1

1 x 16 11.5 1.32

1 x 25 12.5 1.56

1 x 35 13.5 1.82

1 x 50 15.5 2.4

1 x 70 16.5 2.72

1 x 95 18.5 3.42

1 x 120 20.5 4.2

1 x 150 22.5 5.06

1 x 185 25 6.25

1 x 240 28 7.84

1 x 300 30 9

3 x 1.5 11.5 1.32

3 x 2.5 12.5 1.56

3 x 10 17.5 3.06

3 x 16 19.5 3.8

3 x 50 26 6.76

3 x 70 30 9

3 x 120 36 12.96

4 x 1.5 12.5 1.56

4 x 2.5 13.5 1.82

4 x 6 16.5 2.72

4 x 10 18.5 3.42

4 x 16 21.5 4.62

4 x 25 25.5 6.5

4 x 35 28 7.84

4 x 50 30 9

4 x 70 34 11.56

4 x 95 39 15.21

4 x 120 42 17.64

4 x 150 47 22

4 x 185 52 27

4 x 240 58 33.6

5 x 1.5 13.5 1.82

5 x 2.5 14.5 2.1

5 x 6 18.5 3.42

5 x 10 20.5 4.2

5 x 16 22.5 5.06

5 x 25 27.5 7.56

5 x 35 34 11.56

5 x 50 40 16

Telecommunications cables

TypeDiame-termm

Usablecross-section cm

2 x 2 x 0.6 5 0.25

4 x 2 x 0.6 5.5 0.3

6 x 2 x 0.6 6.5 0.42

10 x 2 x 0.6 7.5 0.56

20 x 2 x 0.6 9 0.81

40 x 2 x 0.6 11 1.12

60 x 2 x 0.6 13 1.69

100 x 2 x 0.6 17 2.89

200 x 2 x 0.6 23 5.29

2 x 2 x 0.8 6 0.36

4 x 2 x 0.8 7 0.49

6 x 2 x 0.8 8.5 0.72

10 x 2 x 0.8 9.5 0.9

20 x 2 x 0.8 13 1.69

40 x 2 x 0.8 16.5 2.72

60 x 2 x 0.8 20 4

100 x 2 x 0.8 25.5 6.5

200 x 2 x 0.8 32 10.24

IT cables Type Cat...

Type Diametermm


Cat. 5 8 0.64

Cat. 6 8 0.64

Coax cable (Standard)

Type Diametermm


SAT/BKcable

6.8 0.48

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How can I find a system of the appropriate volume?

Cable heightThe cable height may not exceedthe edge height of the cable tray.

Volume reserveWhen selecting the system, a vol-ume reserve of at least 30%should be planned for possible lat-er installations.

Branches

When dimensioning branches, thebending radii of the cables mustbe taken into account.

Separation of system levelsWhen selecting the volume, pay at-tention to the different conductors.To separate different voltage lev-els, you must take the requiredspacings into account.

Same usable cross-section, dif-ferent requirementsThe following table will help you tochoose a cable support system ofthe right volume. It underlines theinterplay of tray or ladder width,slant height and usable cross-sec-tion. The difference when layingthe same volume of data and pow-er cables should be taken into ac-count: while it is possible to selecta narrow, high tray for data cables,a wide, flat tray is necessary forpower cables.

ExamplesFlat, wide variant: e.g. for power cables Cable tray width: 300 mm Side rail height: 35 mm Usable cross-section: 103 cm2Narrow, high variant: e.g. for data cables Cable tray width: 100 mm Side height: 110 mm Usable cross-section: 108 cm2

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29OBOKTS

Reference laying types

When selecting the correct system,also observe the current DIN/VDEstandards (0298 T1 to T4). Theyprovide information on the heatingof conductors, depending on theamassment and the ambient tem-perature.

Reference laying type: CCable on unperforated cable tray,e.g. type MKSMU

Reference laying type: E or FCable on perforated cable tray,horizontal/vertical, e.g. typeRKSM/MKSM

Reference laying type: E, F or GCable or installation cable onmesh cable trays, e. g. type GR-Magic

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How do I calculate the cable weight?

100mm = 15 kg/m.

200mm = 30 kg/m

300mm = 45 kg/m

400mm = 60 kg/m

500mm = 75 kg/m

600mm = 90 kg/m

Of equal significance for the selec-tion of the cable support systemmost suited to the application isthe load capacity of the system.This must be matched with the ex-pected cable weight (including thereserve for later installation). Thereare three variants for determiningthe cable weight:

Variant 1: Orientation to experi-ence valuesThe average load capacity of a ca-ble tray can be calculated roughlyusing experience values. For asystem with a strut height of 60mm, a value of 15kg per 100mmwidth is valid for each metre of ca-ble tray or cable ladder. However,more accurate than orientation toexperience values is to calculatethe cable load using the formulafrom DIN VDE 0639 Part 1 (Vari-ant 2) or the manufacturer's speci-fications (Variant 3).The graphics show the load ca-pacities, based on experience val-ues, of cable trays with a railheight of 60 mm, relative to cabletray widths of 100 to 600 mm.

Variant 2: Calculation formula ac-cording to VDE 0639 T1To calculate a maximum approvedcable load, DIN VDE 0639 Part 1(cable support systems) can offera formula.In the example calculation, themaximum approved cable load fora cable tray is worked out usingthe dimension 60mm x 300mmand a usable cross-section of 178cm.

Variant 3: Exact calculation ac-cording to manufacturer's speci-ficationsMost cable manufacturers offer avery accurate method of calculat-ing cable weights, and appropriatelists or tables can be obtainedfrom them. Important: The tablesonly provide a rough overview.They are average values, whichmay vary from manufacturer tomanufacturer. Please refer to themanufacturer's specifications forthe exact values.

0.028 N

Cable load (F) = x Usable cross-section

m x mm2

0.028 N

1. Cable load (F) = x 17,800 mm2 = 500 N/m

m x mm2

2. Conversion from Newtons (N) to kilogrammes (kg) 10 N ~ 1 kg in our example, this means: 500 N/m = 50 kg/m

3. Maximum occurring load = 50 kg/m

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Actual cable weights of different cable types


Type Cable loadkg/m

1 x 4 0.08

1 x 6 0.105

1 x 10 0.155

1 x 16 0.23

1 x 25 0.33

3 x 1.5 0.135

3 x 2.5 0.19

3 x 4 0.265

4 x 1.5 0.16

4 x 2.5 0.23

4 x 4 0.33

4 x 6 0.46

4 x 10 0.69

4 x 16 1.09

4 x 25 1.64

4 x 35 2.09

5 x 1.5 0.19

5 x 2.5 0.27

5 x 4 0.41

5 x 6 0.54

5 x 10 0.85

5 x 16 1.35

5 x 25 1.99

7 x 1.5 0.235

7 x 2.5 0.35


Type Cable loadkg/m

1 x 10 0.18

1 x 16 0.24

1 x 25 0.35

1 x 35 0.46

1 x 50 0.6

1 x 70 0.8

1 x 95 1.1

1 x 120 1.35

1 x 150 1.65

1 x 185 2

1 x 240 2.6

1 x 300 3.2

3 x 1.5 0.19

3 x 2.5 0.24

3 x 10 0.58

3 x 16 0.81

3 x 50 1.8

3 x 70 2.4

3 x 120 4

4 x 1.5 0.22

4 x 2.5 0.29

4 x 6 0.4

4 x 16 1.05

4 x 25 1.6

4 x 35 1.75

4 x 50 2.3

4 x 70 3.1

4 x 95 4.2

4 x 120 5.2

4 x 150 6.4

4 x 185 8.05

4 x 240 11

5 x 1.5 0.27

5 x 2.5 0.35

5 x 6 0.61

5 x 10 0.88

5 x 16 1.25

5 x 25 1.95

5 x 35 2.4

5 x 50 3.5

Telecommunications cables

Type Cable loadkg/m

2 x 2 x 0.6 0.03

4 x 2 x 0.6 0.035

6 x 2 x 0.6 0.05

10 x 2 x 0.6 0.065

20 x 2 x 0.6 0.11

40 x 2 x 0.6 0.2

60 x 2 x 0.6 0.275

100 x 2 x 0.6 0.445

200 x 2 x 0.6 0.87

2 x 2 x 0.8 0.04

4 x 2 x 0.8 0.055

6 x 2 x 0.8 0.08

10 x 2 x 0.8 0.115

20 x 2 x 0.8 0.205

40 x 2 x 0.8 0.38

60 x 2 x 0.8 0.54

100 x 2 x 0.8 0.875

200 x 2 x 0.8 1.79

IT cables Type Cat...

Type Cable loadkg/m

Cat. 5 0.06

Cat.6 0.06

Coax cable (Standard)

Type Cable loadkg/m

SAT/BK cable 0.06

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Which trays and ladders can support which cable load?

Explanation of the pictograms: 1 = load in kN without man load, 2 = support width in m, 3 = strut bend in mm

Load tests for cable support sys-temsAll the OBO articles and systemsare subjected to practical loadtesting. The basic principlesfor thetests of OBO cable support sys-tems are included in DIN EN61537 and DIN VDE 0639. Afterthe load test, the maximum loadcapacity can be determined foreach component, depending onthe support distances and specificarticle parameters, such as com-ponent dimensions. This is shownin a diagram, included with eachcomponent.You can find additional informa-tion on the load tests for cabletrays, brackets and suspendedsupports in this catalogue. The val-ues given do not take resistanceagainst environmental forces suchas snow, wind and other outsideinfluences into account.

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Load diagram, legend1 = Load in kN/m without manload2 = Support width in m3 = Strut bending in mm4 = Schematic diagram of the support widths for testingmethod-- = Approved load for the different tray widths depending on the support spacing.-- = Rail bend according to the support width

Information 1: The testingprocessThe basic principlesof the tests ofOBO cable support systems isVDE 0639 Part 1 and DIN EN61537. The purpose of the tests isto determine the maximum loadcapacities for each component,depending on parameters such ascomponent width, support spac-ing, etc. and to present this in a di-agram to be included with eachcomponent. The area highlightedin blue in the above exampleschematises the experiment setupwith a variable support spacing (L)in the central area and a factor of0.8 x L at the front and rear endsof the cable tray.

Information 2: Load curves forselected cable tray or cable lad-der widthsThe load capacity of the cabletrays according to the supportwidth can be read off in the dia-gram using the load curves thisis an example for a cable tray forthe tray widths 100 to 600 mm. Itmay occur that, in the load curves,width differences must be made,allowing multiple curves to be visi-ble simultaneously in the diagram-A key factor for the load capacityof the cable trays is, beside thesupport spacing and side height,the material thickness, whichvaries according to type.

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Which trays and ladders can support which cable load?

Information 3: Possible supportspacingsThe theoretically possible spansfor the cable tray can be read offon the axis at the foot of the table.Using the load curves, it is easy toread off to what extent the load ca-pacity of the system falls as thesupport spacing grows. On allOBO cable support systems (withthe exception of the wide spantrays), we recommend not exceed-ing a support spacing of 1.5 m, ifpossible.

Information 4: Ratio: load/spanWhich load is possible at whichsupport spacing? With the dia-gram, you can find the appropriateinformation at a glance. In our ex-ample (with the blue background)a span of 2.25m for the tray pro-duces a maximum load capacity of0.75 kN for each running metre ofcable tray. Please note that, in thisexample, the volume of the cabletray may exceed the permittedload. Therefore, if at all possible,do not exceed the support spacingof 1.5 m, as recommended byOBO.

Information 5: W = Strut sagTo what extent does the load on acable tray cause the strut to bend?This information is supplied by theblue curve (w) in millimetres (ori-entation values on the axis on theright-hand side of the diagram).The course of the blue curve clear-ly shows how quickly the cabletray will sag as the support spac-ing increases. In our example, thebend at a support spacing of2.25 m is shown, here approxi-mately 12 mm.

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35OBOKTS

Which bracket can support which cable load?

Key components of the OBO cablesupport systems are the installa-tion components, in particular thebrackets and suspended supports.They connect the cable trays andladders to the wall and to the ceil-ing, and are thus an importantconstruction element of the overallsystem. When calculating the loadcapacity of a cable support sys-tem, the brackets and suspendedsupports must not be forgotten.The test diagram is also useful inselecting the right products.

Load diagram, legend1 = Bend inmm at the bracket tip2 = Load in kN/m without man load--= Load curves for the various bracket lengths

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Which bracket can support which cable load?

Information 1: Recommendedmaximum load of the bracketsThe bracket is the part of the in-stallation system upon which thecable tray or mesh cable tray is lo-cated. It is either directly connect-ed to the wall or is connected tothe ceiling using supports. Thegrey bar on the right edge of thediagram provides information onthe maximum load capacity of thebracket.

Information 2: Load curves for allbracket widthsThe bending of the bracket is de-pendent on its width, which, in ourexample, can range from 110mmto 610 mm. The load curves areassigned to the appropriate brack-et type.

Information 3: Bending of thebracket tip at a specific loadThe load curve in the diagram pro-vides information on the bendingof the boom tip at a specific load.In our example (dotted orangeline), a 610mm wide bracket witha load of 2 kN bends by approx.3.1 mm.A basic rule of thumb is:The shorter the bracket, the lessthe bend will be.

Information 4: Bending of thebracket tip at maximum loadThe bending factor of the bracketat maximum load can also beseen in the diagram. In our exam-ple (shown in orange), the bendvalue for a 610mm wide bracketat a maximum load of approx. 3.0kN is approximately 4.5 mm. Tominimise the bend, the centre ofgravity of the cable load should beas close as possible to the wall orthe support fastening.

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37OBOKTS

Which support can support which cable load?

Load diagram, legend1 = Bend inmm at the bracket tip2 = Load in kN/m without man load--= Load curves for the various bracket lengths

Information 1: Various supportlengths and bracket widthsThe load capacity of a cable sup-port system is not just dependenton the width of a bracket, but alsoon the length of a suspended sup-port. The load curves in the dia-gram provide information on theload capacity of a suspended sup-port of length 600, 1,000, 1,500or 2,000 mm, taking the bracketwidth into account.

Information 2: Calculation of thedeflection for the exampleThe weight of the total suspendedsupport/bracket/cable tray systemcauses an excursion of the sus-pended support from the vertical.The excursion value can be readoff from the axis on the left edgeof the diagram. In our example(blue background), a 1,500 mmlong suspended support, togetherwith a 400mm wide bracket and aweight load of 4 kN at the end ofthe support will produce an excur-sion of approximately 14 mm.

Information 3: Calculation of theexcursion at maximum load forthe exampleThe excursion of the suspendedsupport at a maximum load can al-so be read off on the diagram. Ourblue example shows an excursionof roughly 18mm at the end of thesupport for a 1,500mm long sus-pended support, in combinationwith a 400mm wide bracket at amaximum cable load of approxi-mately 5 kN.

38 OBO KTS

39OBOKTS

Planning aids, mounting systems

Installation principle, universal systems 40

Mounting aid, universal systems 43

Installation principle, U support 45

Mounting aid, U support and bracket systems 49

Installation principle, I support and bracket systems 52

Mounting aid, I support and bracket systems 54

Installation principle, clamp fastening systems 56

Mounting aid, clamp fastening systems 58

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Installation principle, universal systems

System components

1 Ceiling bracket

2 Trapezoidal fastening

3 Threaded rod

4 Central suspension

5 Suspension clamp

6 Spacer clamp

7 Spacer clamp

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41OBOKTS

Installation principle, TP systems

System components

1 TP suspended support

2 TP support / wall and support bracket

3 Spacer

4 Protective cap

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System description, universal systems

The universal systems are used for small loads. Whether the installation is to be a ceiling fastening, wall fasten-ing or as a floor stand-off: in the Universal systems, you can find functional fittings with matching system acces-sories for any application.These suspension systems, which can be called basic installations, include centrally loaded ceiling clamps ortrapezoidal fastenings, which are used with threaded rods and centre suspensions. When using central suspen-sions, the load should be even on both sides of the system. If an even load cannot be guaranteed, then othersystems should be used.The TP system is a range of light supports and brackets. This product range, which consists of TP suspendedsupports and brackets, can be used universally as ceiling and wall mounting.On the following pages, you can select your preferred mounting variant from the installation diagrams shownand combine the corresponding articles in the order section.

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43OBOKTS

Mounting aid, universal systems

Application on the ceilingCeiling fastening for low loads on straight andsloping ceilings.

Installation of centre suspensionInstallation of the central suspension MAH 60on the ceiling using threaded rod 2078/M10and ceiling bracket 12050. Maximum cabletray width 300 mm.

Universal mounting on the ceilingThe variable ceiling bracket, type DBV, allowsthreaded rod suspensions on straight and slop-ing ceilings.

Centre suspension with threaded rodDirect centre suspension at low loads of a ca-ble tray with threaded rod 2078/M10.

Installation of central hanger MAH 35Insertion and alignment of the central hanger,MAH 35, in the cable tray.

Installation of central suspension MAH 60Insertion and alignment of the central suspen-sion, MAH 60, in the cable tray.

Threaded rod suspension RKSM > 400 mmThe threaded rod suspension of RKSM cabletrays > 400 mm can take place using twothreaded rods.

Cable ladder centre suspension withthreaded rodInstallation of a cable ladder with central sus-pension MAHU and a threaded rod.

Trapezoidal plate applicationSimple, quick fastening of a cable support sys-tem to trapezoidal metal roofs.

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Installation of trapeze suspensionInstallation of a cable tray on a trapezoidal ceil-ing using a ceiling bracket, type TPB 100 andcentral suspension, type MAH 60. Maximumcable tray width 300 mm. The trapezoidal fas-tening is mounted using the lock, type TPB R.

Threaded rod suspension with ceiling bracketCeiling mounting of a cable tray with AHB ceil-ing bracket and threaded rod 2078/M10. Maxi-mum cable tray width 400 mm.

Direct fastening of the ceiling bracketDirect mounting of the AHB ceiling bracket withanchor bolt on the ceiling. Maximum cable traywidth 400 mm.

Ceiling mounting of TP wall and ceilingbracketUniversal mounting of the TPD wall and ceilingbracket on the ceiling (with DS 4 spacer). Maxi-mum tray width 300 mm.

Installation of TP support with single-sidedbracket fixingCeiling mounting of a TP support with spacerDS 4 and one-sided bracket mounting. Maxi-mum tray width 300 mm.

Complete mounting of a TP systemInstallation of the TP support with head rein-forcement and double-sided bracket mountingand mounting directly on the wall.

Floor fastening at a distanceInstallation of a cable tray at a distance usingthe stand-off bracket DBL. Maximum cable traywidth 600 mm.

Stand-off of mesh cable traysFloor stand-off of mesh cable trays with thestand-off bracket, type DBLG 20/... Screwlessfastening of the mesh cable tray on the stand-off bracket using clamping lugs.

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45OBOKTS

Installation principle, U support US 3

System components

1 US 3 suspended support

2 Spacer

3 Wall and support brackets

4 Head plate

5 US 3 support

6 U support connector

7 Protective cap

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System components


2 Spacer


4 Head plate

5 US 5 support


7 Protective cap

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47OBOKTS


System components


2 Spacer


4 Heavy-duty head plate

5 US 7 support


7 Protective cap

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System description, U support and bracket systems

The perfectly matched U support family consists of US 3 (light-duty system), US 5 (medium-duty system) andUS 7 (heavy-duty system). The U support range is particularly noted for its versatility. The U supports can beused as ceiling suspension, floor stand-off or as construction profiles.Besides the U support family with comprehensive accessories, you can also find the wall and support bracketsin this chapter. These can be fastened directly on the wall or on U supports. Classification takes place accord-ing to load capacity. The appropriate maximum load can be easily derived from the type of the different walland support brackets MWA 12 (max. load 1.2 kN), AW 15 (max. load 1.5 kN), AW 30 (max. load 3.0 kN) andAW 55 (max. load 5.5 kN).On the following pages, you can select your preferred mounting variant from the installation diagrams shownand combine the corresponding articles in the order section. You can find a comprehensive article descriptionand additional information for the articles, such as load and anchor diagrams, which can help you when select-ing the system.

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49OBOKTS

Mounting aid, U support and bracket systems

Wall mountingDirect fastening of wall and support brackets oftype AW... on the wall.

Quick fastening of cable tray on bracketPositioning the cable tray on the bracket.

Quick fastening of tray on bracketFixing of the cable tray on the bracket usingquick connector.

Wall bracket, variableFastening of the variable wall bracket, typeAWV, with anchor bolt, type FAZ II, to vaultedor sloping walls/ceilings.

Standard mounting of support with wallbracket, single-sided without spacerCeiling fastening of a support with single-sidedbracket fastening. No spacer is required forwidths up to and including 300 mm.

Standard mounting of support with wall andsupport bracket, single-sided with spacerCeiling fastening of a support with single-sidedbracket fastening. For widths of over 400 mm,we recommend using a spacer.

Standard mounting of support with wall andsupport bracket, double-sidedCeiling fastening of a support with double-sid-ed bracket mounting.

Ceiling mountingStandard mounting of U supports US 3 K, US 5K and US 7 K on the ceiling with fastening ofthe wall and support brackets.

Head plate mountingInstallation of the standard head plate on sup-port and ceiling. Use with spacer DSK 25 (US3), DSK 45 (US 5) or DSK 61 (US 7).

Adapter head plate, asymmetricalAsymmetrical head plate KA-ASY to increasethe load capacity for the combination with sup-ports, type US 7 K and IS 8 K.

Adapter head plate, symmetricalSymmetrical head plate KA-SY to increase theload capacity for the conjunction with supports,types US 7 K and IS 8 K.

TraverseInstallation of U supports US 3 K, US 5 K andUS 7 K under the ceiling using anchor bolts,FAZ II, and use of a trapeze, consisting of Uprofile US 3, US 5 or US 7.

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U support wall mountingU supports are installed on walls or girders us-ing FAZ II anchor bolts, directly through thesystem perforation in the U support.

U support connectionTo connect U supports, use the appropriate Usupport connectors, types VUS 3, VUS 5 andVUS 7.

Installation of spacerInstallation of the spacer DSK 47 with US 5supports or DSK 45 with US 7 supports in con-junction with a variable head plate KU 5 V orKU 7 VQP.

Variable head plate with US 3 supportInstallation of the variable head plate, type KU3 V on US 3 support.

Variable head plateFastening of the variable head plate KU 5 V tosloping concrete ceilings using anchor bolts,type FAZ II, and spacer DSK 47.

Variable head plateFastening of the variable head plate KU 7 VQPto sloping concrete ceilings using anchor bolts,type FAZ II, and spacer DSK 45.

45 adapter plate, concrete mountingInstallation of the 45 adapter plate, type KA-E,on a concrete wall. For additional support andimplementation of trays at room corners.

45 adapter plate, steel clampingInstallation of the 45 adapter plate, type KA-E45, on the steel girder using clamping anglesor chuck jaws. For additional support of traysat room corners.

Direct girder clampingDirect girder clamping of an U support usingKWS clamping angle. Route in longitudinal di-rection of steel girder.

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51OBOKTS

Steel clamping with C profile, tray inlongitudinal directionU suspended support mounting, clamped tosteel girder with C profile CPS 4 G and TKH-L-25 light-duty chuck jaw. Tray route along steelgirder.

Steel clamping with C profile, tray intransverse directionU suspended support mounting, clamped tosteel girder with C profile, type CPS, and TKH-L-25 light-duty chuck jaw. Tray route transverseto steel girder.

Head plate mountingInstallation of the head plate using the exampleKU 7 AOX for direct welding on steel girders.

Cantilever beam on steelU supports can be used as cantilever beamson steel girders with chuck jaws of type TKS-L-25. Use DSK spacers for safe functioning.

Clamp fastening of heavy-duty bracketClamp fastening of a heavy-duty bracket withclamping angles or clamping lugs on a verticalsteel girder.

Complete mounting of a ceiling fasteningIllustration of complete ceiling mounting withcable trays.

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Installation principle, I support and bracket systems

System components

1 I suspendedsupport

2 Support strap

3 Support bracket

4 Head plate

5 I support

6 I support connector

7 Protective cap

8 Mounting angle

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53OBOKTS

System description, I support and bracket systems

The I support system from OBO Bettermann really comes into its own in situations where high loads must becarried, large distances must be bridged and difficult routes must be implemented. The I support system fulfilsall the requirements of a heavy-duty cable mounting system. The high load capacities of all the system compo-nents permit the mounting of complex structures. The comprehensive range of head plates allows the imple-mentation of all conceivable solutions. This heavy-duty system is used with large support spacings of wide spansystems or for multi-layer set ups of standard cable trays and cable ladder systems. The combination of I sup-ports and support brackets of type AS 15, AS 30 and AS 55 form a perfectly matched product range, theheight of which can be infinitely adjusted.On the following pages, you can select your preferred mounting variant from the installation diagrams shownand combine the corresponding articles in the order section. You can find a comprehensive article descriptionand additional information for the articles, such as load and anchor diagrams, which can help you when select-ing the system.

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Mounting aid, I support and bracket systems

Application on the ceilingStandard mounting of supports to concreteceilings using anchor bolt, type FAZ II.

Head plate mountingFastening of the standard head plate, KI 8, for Isupport to concrete ceilings using anchorbolts, type FAZ II.

Head plate, variable (rotated through 90)Installation of the variable head plate, rotatedthrough 90, KI 8 VLK to sloping concrete ceil-ings using anchor bolts, type FAZ II.

Variable head plateInstallation of the variable head plate KI 8 VQPto sloping concrete ceilings using anchor bolts,type FAZ II.

I support connectionInstallation of the I support connector VIS 8 toconnect IS 8 supports.

Bracket mountingInstallation of a three-layer cable support sys-tem on the concrete ceiling using supportbracket mounting, AS 15, AS 30 and AS 55.

Adapter head plate, asymmetricalAsymmetrical head plate KA-ASY to increasethe load capacity for the combination with sup-ports, type US 7 K and IS 8 K.

Adapter head plate, symmetricalSymmetrical adapter head plate KA-SY to in-crease the load capacity for the conjunctionwith supports, types US 7 K and IS 8 K.

Wall mounting, I supportInstallation of an I support on the wall usingmounting angle, type BW 80/55, and anchorbolts, type FAZ II, to accept multiple supportbrackets, type AS.

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55OBOKTS

Special structureExample of installing of a special structure,consisting of I supports (ceiling/wall mounting)with transverse profile and various supportbrackets, type AS.

Application on steel girderClamp fastening of supports on steel girdersusing various chuck jaws, lengthwise or trans-verse to the steel girder.

Direct girder clampingDirect girder clamping an I support usingheavy-duty chuck jaw, type TKS-S-30. Route inlongitudinal direction of steel girder.

Steel clamping with C profile, tray inlongitudinal directionI support with welded head plate mounting,clamped to steel girder with C profile and TKH-L-25 chuck jaw. Tray route along steel girder.

Steel clamping with C profile, tray intransverse directionI support with welded head plate mounting,clamped to steel girder with C profile and TKH-L-25 chuck jaw. Tray route transverse to steelgirder.

Head plate, variable (transverse)Installation of the variable, transversely ad-justable head plate, type KI 8 VLP, on rising orfalling steel structures with profile rail, type CPS5 G and clamping angles, type KWH.

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Installation principle, clamp fastening systems

System components

1 Chuck jaw, heavy-duty

2 Chuck jaw, light-duty

3 Profile rails

4 Clamping lug/clamping profile

5 Fastening clamp, horizontal

6 Fastening clamp, vertical

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57OBOKTS

System description, clamp fastening systems

The clamp fastening systems with reduced installation times and work are a clear argument for the use of thissystem in all areas of professional electrical installations. Clamp fastening can be attached without difficult, of-ten unpermitted drilling. The load range runs from light-duty clamping angles to heavy-duty chuck jaws.The clamping lugs / clamping angles, type KL, KWH and KWS and the chuck jaws, type TKH and TKS, permitexcellent connections without drilling or welding, on account of the perfect matching to additional system arti-cles.On the following pages, you can select your preferred mounting variant from the installation diagrams shownand combine the corresponding articles in the order section.

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Mounting aid, clamp fastening systems

Application on horizontal steel girderClamp fastenings using clamping angles andchuck jaws on horizontal steel girders.

Application on sloping steel girderClamp fastenings using clamping angles andchuck jaws on sloping steel girders.

Steel clamping, C profile railFastening of a C profile, type CPS 4 G or CPS5 G, to steel girder using clamping angles, typeKWS.

Direct girder clampingDirect girder clamping an I support usingchuck jaw (heavy duty), type TKS-S-30. Routealong steel girder.

Clamp fastening with addition C profileUse of an additional C profile rail, type CPS, forwider steel girders. Route along steel girder.

Clamping transverse to steel girderUse with two C profile rails for tray mountingtransverse to the steel girder.

Cantilever beam on steelInstallation of U support as cantilever beam onsteel girder. Fastening with clamping angles orchuck jaws depending on load. Fastening withspacers, type DSK.

Cantilever beam with supportCantilever beams made of U support construc-tion clamped to steel girder for installing sup-ports.

Clamp fastening on vertical steel girderInstallation of the adapter plate, type KA-AW,on the vertical steel girder using clamping an-gle or chuck jaws. Wall brackets of type AWare fixed to the adapter plate, using the hexag-onal bolt SKS 12 x 40 GF.

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59OBOKTS

45 adapter plate, steel clampingInstallation of the 45 adapter plate, type KA-E45, on the steel girder using clamping anglesor chuck jaws. For additional support of traysat room corners.

Vertical clamp fasteningClamp fastening of a heavy-duty bracket withclamping angles or clamping lugs on a verticalsteel girder.

Vertical clamp fasteningInstallation of a mesh cable tray vertically on asteel girder, mounting with a beam clamp BFKand clamp GKS 50.

Horizontal clamp fasteningInstallation of AZ channel using BFK beamclamp in a longitudinal direction on the steelgirder. Maximum cable tray width 100 mm.

60 OBO KTS

61OBOKTS

Planning aids, fastening systems

Mounting aid, heavy-duty and bolt ties 64

Mounting aid, injection ties 65

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Tightening torques

Different tightening torques applywhen mounting a cable supportsystem. Please note that thespecified torques are only intend-ed as rough, non-binding guidevalues. (See VDI 2230)!

Tightening torques of bolts with metric thread

Thread Resistance class 5.6 Resistance class 6.9 Resistance class 8.8 Resistanceclass 10.9Resistanceclass 12.9

M6 3.9 Nm 8.5 Nm 10 Nm 14 Nm 17 Nm

M8 9.8 Nm 21 Nm 25 Nm 35 Nm 41 Nm

M10 19.6 Nm 41 Nm 49 Nm 69 Nm 83 Nm

M12 33.4 Nm 72 Nm 86 Nm 120 Nm 145 Nm

M14 54 Nm 115 Nm 135 Nm 190 Nm 230 Nm

M16 82 Nm 180 Nm 219 Nm 295 Nm 355 Nm

M18 114 Nm 245 Nm 290 Nm 400 Nm 485 Nm

M20 163 Nm 345 Nm 410 Nm 580 Nm 690 Nm

Tightening torques for stainless steel bolts (friction quotient (q) 0.16)Thread Class 50 Class 70 Class 80

M6 3.8 Nm 8.2 Nm 10.9 Nm

M8 9.2 Nm 19.6 Nm 26.2 Nm

M10 19 Nm 39 Nm 53 Nm

M12 31 Nm 67 Nm 89 Nm

M14 50 Nm 106 Nm 142 Nm

M16 76 Nm 162 Nm 216 Nm

M18 105 Nm 225 Nm 299 Nm

M20 148 Nm 316 Nm 422 Nm

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63OBOKTS

Allocation for anchor

Not only the individual compo-nents of the cable support sys-tem are important for the load ca-pacity of the installation. Also ofimportance is the anchoring.

The load capacity of a suspendedsupport or a wall bracket is depen-dent on the quality of the anchor-ing on the wall or ceiling. You canfind the maximum load values inthe anchor diagrams. The appro-priate load classes allow direct as-signment to the appropriate boltties and heavy-duty anchors.

Allocation of fastening materials

Designation Length/mmWidth/mmHeavy-duty anchorBolt tie Art. no.

Load class inconcrete C25 Thread length mm Thread

US 3K suspended support 200 - 1200 FAZ II 8/10 GS 3498 506 2.4 kN 10 M8

MWA 12 bracket 100 - 400

TP bracket 145 - 345 FAZ II 10/30 3498 581 4.3 kN 30 M10

TP suspended support 145 - 645

US 5 suspended support 200 - 1200 FAZ II 10/10 GS 3498 549 4.3 kN 10 M10

US 7 suspended support 200 - 1000

AW 15 bracket 110 - 610

AW 30 bracket 110 - 710

US 7 suspended support 1100 - 2000 FAZ II 12/10 3498 654 7.6 kN 10 M12

IS 8 suspended support 200 - 2000

AW 55 bracket 210 - 810

AW 55 bracket 910 - 1010 FH 18/80 3498 743 9.91 18 M12

AW 80 bracket 210 - 810

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Mounting aid, heavy-duty and bolt ties

Anchor, type FNA, with threaded connectionNail anchor, type FNA, with M8 threaded con-nection, usable in reinforced or unreinforcedconcrete C20/25 to C50/60, load capacity 0.5kN. Suitable for function maintenance.

Anchor, type FNA, with drive-in headNail anchor, type FNA, with drive-in head, us-able in reinforced or unreinforced concreteC20/25 to C50/60, load capacity 0.5 kN.Suitable for function maintenance.

Anchor bolt, type FAZ IIAnchor bolt, type FAZ II, for fixing heavy-dutyanchorings in reinforced or unreinforced nor-mal concrete C20/25 to C50/60, suitable forpush-through mounting, with M8, M10 or M12connection thread. Load capacity 4.3 kN (M8),7.6 kN (M10), 11.9 kN (M12). With Europeantechnical approval. Suitable for function mainte-nance.

Impact tie type FZEAImpact tie, type FZEA, with M8, M10, M12 in-ternal thread. For acceptance of smaller loads,approved for normal concrete C20/25 toC50/60. Load capacity 3.0 kN (M8) and 3.6kN (M10 and M12). Suitable for function main-tenance.

Screw-in anchor, type MMSScrew-in anchor with hexagonal head for directmounting without additional anchors. Suitablefor use in concrete and masonry. Approved forfunction maintenance and with European tech-nical approval.

Heavy-duty anchor, type FHHeavy-duty anchor, type FH, with M12 threadedconnection, for fixing components with largeloads, approved for normal concrete C20/25to C50/60. Load capacity 8.26 kN, with Euro-pean technical approval.

Hollow ceiling tieHollow ceiling tie, type FHY, with internal threadM8, M10. For use in pre-stressed concretecore slab ceilings. Load capacity 2.0 kN (M8)and 3.0 kN (M10). Approved for function main-tenance.

Long shank dowel, type SXSLong shank dowel, type SXS, for universal use.Load capacity up to 2.0 kN. With structure ap-proval.

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65OBOKTS

Mounting aid, injection ties

Use in hollow brickDrill the hole in the hollow brick according tothe selected anchor size and then clean it.

Mounting preparationsInsert the fitting plastic sieve sleeve in the drillhole.

Applying the injection mortarPress in the injection mortar from the cartridgefrom the base of the drill hole to the opening.In so doing, draw the point back slowly.

Inserting the anchor rodAttach the anchor rod in the filled wire sleeveup to the set marking. The mortar pushesthrough the openings of the wire sleeve, form-ing a closure.

Mount the componentThe component can be mounted when the in-jection mortar has hardened. Comply with thetightening torque in the approval. The harden-ing time is dependent on the ambient tempera-ture.

Use in porous concrete wallDrilling of the anchor hole using the specialPBB conical drill. In so doing, rotate the drill tocreate the back cut of the opening.

Applying the injection mortarAfter thorough cleaning of the opening, insertthe centring sleeve into the opening. Then in-sert mortar from the cartridge from the base ofthe drill hole to the opening.

Inserting the anchor rodAttach the anchor rod in the filled wire sleeveup to the set marking. The mortar closes upthe back-cut.

Mount the componentThe component can be mounted when the in-jection mortar has hardened. Comply with thetightening torque in the approval. The harden-ing time is dependent on the ambient tempera-ture.

66 OBO KTS

67OBOKTS

Planning aids, Magic cable tray systems

Mounting aid, cable tray system RKSM 80

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The future of cable tray systems has begun. The Magic cable tray sys-tems

Simplified mountingThe lighter structure produces a considerable benefit for over-headmounting and at great heights. The Magic cable tray system is theworld's first completely screwless tray system. All the system compo-nents and tray types are equipped with the innovative Magic connection -from the tray through to the fitting. The combination of both advantagesmakes mounting simpler and quicker.

Load capacity increasedCompared to previous systems, Magic cable trays offer greater stability.The complex 3D structure and the different material structure around thelaser seam produce previously unachieved load values.

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69OBOKTS

Improved ecobalanceThe use of the new, highly innovative and patented manufacturingmethod DUO-Plus leads to a considerably optimised CO2 balance forthe entire product family. This technological leap saves 2,600 tonnes ofCO2 emissions per years.

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Improved cable ventilation and unimpeded water drainage

Improved cable ventilationThe completely new base structure allows perfect cable ventilation. Ac-cording to VDE 0298-4, a tray made up of more than 30% holes is con-sidered a perforated tray. This means that lower reduction factors mustbe taken into account during cable dimensioning, possibly allowing theuse of cables with smaller cross-sections.

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71OBOKTS

Water run-off guaranteedAll the perforated Magic systems of types MKSM, SKSM and IKSM ofwidth 200mm and wider are suitable for safe installations under sprin-kler systems - in accordance with the requirements of the VDS. The newbase structure allows perfect water run-off.

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Consistently thought through

Lockable fittingsEven faster. Even simpler. All the classic fittings, such as bends, Tpieces, mounting/branch pieces and intersections are equipped with thetrusted, lockable Magic connector. The cable tray is run into the fittingconnection from above with the spring element. Just connect the pieces,lock them in place and you're done.

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73OBOKTS

Variable connectorsThe perfect end. The variable screwless Magic connector bridges jointsof up to 50 mm. This permits perfect connections under any conditions.In addition, the connectors permit large radii of up to 10 in the route, forexample in tunnel construction.

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74 OBO KTS

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Documents

Katalog_KTS_2012_en