Zonex Enclosures - cdn2.webdamdb.com

Zonex Enclosures

2 | nVent.com/HOFFMAN

THE ZONEX ENCLOSURE FAMILY DELIVERS RELIABLE PROTECTION IN A VERSATILE PLATFORM.

The newly expanded line of Zonex ATEX-Certified* Enclosures includes the certifications, styles and sizes your application requires. Zonex hinge-cover and screw-cover enclosures are designed for use in applications where “increased safety” protection (Ex e), is acceptable to safely house electrical components in Zone 1- and Zone 2-rated areas. These enclosures are not intended for use in explosion-proof or flame-proof (Ex d) applications.

Hinge-cover versions are ATEX and IECEX certified, and available in 16 standard sizes. The screw-cover versions provide also ATEX and IECEX certification and are available in five sizes. Additional certifications such as AEx and KOSHA will be available soon (AEx certified hinge-cover version is already available as non-standard model).

• Hinge-cover versions in standard sizes ranging from 300 x 300 x 150 mm to 9 00 x 600 x 210 mm

• Screw-cover versions in standard sizes ranging from 102 x 102 x 76 mm to 254 x 254 x 127 mm

Enhanced customization options allow you to specify the exact enclosure solution you need. Options include: material changes, dimension changes, paint options, holes and cutouts, population of ATEX-certified terminal blocks and more.

* For more information about ATEX-certification visit: http://ec.europa.eu/enterprise/sectors/mechanical/atex/index_en.htm

Zonex EnclosuresAN EXPANDED OFFERING OF HINGE- AND SCREW-COVER ENCLOSURES FOR HAZARDOUS LOCATIONS. ATEX DIRECTIVE 94/9/EC AND IECEX CERTIFIED FOR ZONE 1 ZONE 2 RATED AREAS.

Zonex Screw-Cover Model

Easy-to-remove cover Type 316 stainless steel with capivated Type 316 stainless steel cover screws for corrosion resistance

Bonding provisions, screw-cover style 6-mm internal/external brass bonding provision

Wall-mounting brackets, screw-cover style Welded-on, full-width top and bottom wall-mount brackets for easy installation

nVent.com/HOFFMAN | 3

Continuous gasket seal on the door and gland plate for protection against water and dust ingress

Wall-mounting brackets Heavy-duty 2,5-mm welded-on brackets, horizontal or vertical, for easy site installation

210-degree opening door that is easily removed by pulling clip style hinge pins

Bonding provisions 10-mm brass internal/external bonding provisions

Type 316 stainless steel 3mm double bit ¼-turn for easy access and closure

Full-size gland plate 3-mm thick (12 gauge) flat bottom gland plate with bonding stud and continuous gasket seal

Internal studs for panel or DIN rail mounting

Zonex Hinge-Cover Model

CERTIFIED FOR YOUR APPLICATION REQUIREMENTS

Zonex enclosures deliver a robust solution for termination and junction enclosure applications in potentially hazardous locations, including:

• Petroleum and chemical processing

• Water treatment processing

• Pharmaceutical processing

• Grain processing

THERE ARE 2 WAYS TO DETERMINE THE CORRECT SIZE ZONEX ENCLOSURE FOR POPULATED TERMINAL BLOCKS (SEE PAGE 8):

• Method 1: Maximum Terminal Block Count

• Method 2: Maximum Dissipated Power (watts)

* NOTE - All selection methods must adhere to maximum dissipated power for selected enclosure size.

MODIFICATION AND CUSTOMIZATION

nVent HOFFMAN excels at modifying and customizing Zonex products to your specifications while maintaining ATEX and IECEX certifications. Contact your local HOFFMAN sales office or distributor for complete information. HOFFMAN offers:

• Material changes: Type 304 stainless steel, aluminum, mild steel

• Gasket changes: High-temperature silicone gasket

• Holes and cutouts

• Paint

• DIN rails

• Terminal block installation and marking

• Ground bars

• Tagging

• Accessory installations

• Zero to four gland plates*

*Hinge-cover enclosures only

CERTIFICATION MARKINGS

ATEX IECEX AEx / Ex

II 2 G D Ex e IIC T6 Gb (Ta -20 C to +40 C) Ex tb IIIC T85 C Db IP 66

Ex e IIC T6 Gb (Ta -20 C to +40 C) Ex tb IIIC T85 C Db IP 66

UL File No. E67546: Class I, Zone I

II 2 G D Ex e IIC T5 Gb (Ta -20 C to +55 C) Ex tb IIIC T100 C Db IP 66

Ex e IIC T5 Gb (Ta -20 C to +55 C) Ex tb IIIC T100 C Db IP 66

AEx e IIC Tamb -20 C to +60 C

Ex e IIC Tamb -20 C to +60 C

SELECTION AND SPECIFICATION OF A Zonex Enclosure TO MEET YOUR APPLICATION REQUIREMENTS


ATEX DIRECTIVE AND CLASSIFICATION SYSTEM

Since 2003, manufacturers across the European Union (EU) have been obliged to comply with strict new EU directives governing safety in explosive atmospheres. Called ATEX (from the French ATmosphères EXplosives), ATEX Directive 94/9/EC has an impact not only on European manufacturers, but also on non-European makers of industrial equipment wishing to sell in Europe.

Two of the most common classification systems for hazardous locations are the Zone Classification system used by the European Union (EU) and the International Electrotechnical Commission (IEC), and the NEC Division Classification system.

Articles 505 and 506 of the NEC refer to zone classifications. Refer to the Technical Information section of the Specifier’s Guide for specific definitions and additional information.

HOFFMAN’s ATEX enclosures are not intended for use in explosion-proof or flame-proof (Ex d) applications.

ATEX MARKING DIRECTIVE (94/9/EC)

II 2 G DEuropean Explosive Atmosphere Symbol

Equipment Group

Equipment Category Gas Dust

Ex e II T6

European Explosive Atmosphere Protection Concept

Protection Method Gas Group Temperature

Class

AREA CLASSIFICATION

Flammable Substance Present Continuously

Flammable Substance Present Intermittently

Flammable Substance Present Abnormally

IEC / EU Zone 0 Zone 1 Zone 2

USNEC 505 Zone 0 Zone 1 Zone 2

NEC 500 Division 1 Division 2

CA

CEC Section 18 Zone 0 Zone 1 Zone 2

CEC Annex J Division 1 Division 2

IEC classification per IEC 60079-10 EU classification per EN 60079-10 US classification per ANSI/NF PA 70 National Electrical Code (NEC) Article 500 or Article 505

CA classification per CSA C22.1 Canadian Electrical Code (CEC) Section 18 or Annex J

ZONES

SAFE AREAZONE 2 /22

ZONE 1 / 21

ZONE 0 / 20

ZONE 0 / 20

ZONE 0 / 20 Permanently or frequently hazardous over long periods

ZONE 1 / 21 Occasionally hazardous

ZONE 2 / 22 Rarely or temporarily hazardous

Zones 20, 21 and 22 are dust

INCREASED SAFETY “EX E”

It is assumed that the hazardous atmosphere penetrates to the enclosure interior and explosion is prevented by ensuring that either in normal operation or under fault conditions:

• There are no arcs or sparks

• No components or parts temperatures exceed the temperature limit of the corresponding temperature class

NOTES:

• ATEX and intrinsically safe certified terminal blocks can be installed in populated enclosures

• IECEX populated enclosures require IECEX certified components specifically listed in Certification (see IECEX SIR 09.0100 for more detail)

• Contact your local HOFFMAN sales office or distributor for complete information

Flammable/ Combustible Substance

Air/Oxygen

Igni

tion

Sour

ce

All three elements of the FIRE TRIANGLE must be present for ignition to occur.


SPECIFICATIONS:

• Type 316 stainless steel, 320 grain brushed finish on exterior surfaces

• Welded-on, full-width top and bottom wall-mount brackets for easy installation

• 6-mm internal/external brass bonding provision

• Type 316 stainless steel captivated cover screws for corrosion resistance

• One-piece continuous gasket for protection against water and dust ingress

• Internal weld nuts provided for panel or DIN rail installation

• Mounting plate included

Zonex Screw-CoverATEX-CERTIFIED ENCLOSURES

H2,

812

,7

W 2,8

H+2

5,4

W-22,6

3,2

H-1

2,7

H-1

2,7

(BO

DY

OPE

NIN

G)

W-12,7(BODY OPENING)

D2,0

16,0 D-23,8

Y

Y

M5

A

B

H

W8,6

8,6

H-3

6,4

W-50

Y-Y

SCREW-COVER ATEX (STANDARD SIZES)

Catalog Number Actual Dimensions - mm

A - Height B - Width C- Depth

EXE10210276SS6E 102 102 76

EXE152152102SS6E 152 152 102

EXE178178102SS6E 178 178 102

EXE216146127SS6E 216 146 127

EXE254254127SS6E 254 254 127


Zonex Hinge-CoverATEX-CERTIFIED ENCLOSURES

SPECIFICATIONS:

• Type 316 stainless steel, 320 grain brushed finish on exterior surfaces

• Type 316 stainless steel 3mm double bit ¼-turn insert(s) for easy access and closure

• 210 degree opening door that is easily removed by pulling clip style hinge pins

• Heavy-duty 2,5-mm welded-on brackets, horizontal or vertical, for easy site installation

• 3-mm thick (12 gauge) full-size bottom gland plate with bonding stud

• Fabricated and formed entries for gland plate screws provide quick and easy installation

• Continuous gasket seal on the door and gland plate for protection against water and dust ingress

• 10-mm brass internal/external bonding provision• Mounting plate included

Catalog Number Actual Dimensions - mmA - Height B - Width C- Depth

EXE300300150SS61E 300 300 150EXE300300210SS61E 300 300 210EXE400300150SS61E 400 300 150EXE400300210SS61E 400 300 210EXE400400150SS61E 400 400 150EXE400400210SS61E 400 400 210EXE500400150SS61E 500 400 150EXE500400210SS61E 500 400 210EXE500500210SS61E 500 500 210EXE600500210SS61E 600 500 210EXE600600210SS61E 600 600 210EXE600600300SS61E 600 600 300EXE750500210SS61E 750 500 210EXE750600210SS61E 750 600 210EXE750750300SS61E 750 750 300EXE900600210SS61E 900 600 210EXE300300150SS61HE 300 300 150EXE300300210SS61HE 300 300 210EXE400300150SS61HE 400 300 150EXE400300210SS61HE 400 300 210EXE400400150SS61HE 400 400 150EXE400400210SS61HE 400 400 210EXE500400150SS61HE 500 400 150EXE500400210SS61HE 500 400 210EXE500500210SS61HE 500 500 210EXE600500210SS61HE 600 500 210EXE600600210SS61HE 600 600 210EXE600600300SS61HE 600 600 300EXE750500210SS61HE 750 500 210EXE750600210SS61HE 750 600 210EXE750750300SS61HE 750 750 300EXE900600210SS61HE 900 600 210

WH

H-4

1,6

(BO

DY

DO

OR

OPE

NIN

G)

20,820

,8W-41,6

(BODY DOOR OPENING)P

Q

19,4D2,5

28,9 D-49,8

Y

Y

M8 x 1,25

W-63,531,8W

A

B22,5

22,5

H+3

1,8

H

11,0

13,8

13,4

Y-Y


DETERMINE THE CORRECT SIZE ZONEX ENCLOSURE FOR POPULATED TERMINAL BLOCK:

N by MAXIMUM TERMINAL BLOCK COUNT (KNOWN WIRE SIZE/MATCH TERMINAL BLOCK SIZE)

1. Refer to Power and Terminal Block Matrix appropriate for selected model (screw-/hinge-cover)

2. Find a terminal block quantity less than or equal to required in the shaded areas associated with your chosen terminal block manufacturer

3. Select enclosure size

4. Use calculating power and amperage formula to verify conformance to standard

5. If maximum power is exceeded by terminal block count and amperage, select an enclosure with higher power and re-calculate

SPECIFYING ENCLOSURES WITH TERMINAL BLOCK POPULATION

• ATEX- and IECEX-certified terminal blocks from Phoenix and Weidmuller are referenced in tables

• Any ATEX or IEXEX hazardous location certified terminal block may be selected and installed in ATEX-certified applications

• Only the table referenced terminal blocks may be specified for IECEX populations and certification

• Combinations of different terminal block sizes and quantities may be selected for population

• All terminal block installation applications need to use the CALCULATING POWER and AMPERAGE formula and associated tables on page 10 to verify compliance with final intended amperage of application and power rating of selected enclosure

POWER & TERMINAL BLOCK QUANTITY MATRIX

SCREW-COVER ZONEX (STANDARD SIZES)

Selection of Zonex EnclosuresBY TERMINAL BLOCK COUNT & POWER

P by MAXIMUM POWER (watts)

1. Refer to Power and Terminal Block Matrix appropriate for selected model (screw-/hinge-cover)

2. Find maximum power required in shaded areas associated with your chosen terminal block manufacturer

3. If terminal block quantity for maximum power is insufficient, continue down and across rows until requirement is met; this provides the smallest enclosure to meet maximum power and amperage needs

4. Use calculating power and amperage formula to verify conformance to standard

5. If maximum power is exceeded by terminal block count and amperage, select an enclosure with higher power and re-calculate

R CALCULATING POWER AND AMPERAGE using combined terminal resistance factor (see page 10) Calculation of power/amperage/number of terminal blocks in accordance with EN 600079-7:2007, ANEX E, E.2

P = N x R x I2 or I = √[P/(N x R)] or N=P/(R x I2) Where: P is the total dissipated power (watts)

N is the total number of terminals I is the current (amps) R is the sum of terminal resistance (Rt) and

wire resistance (Rw)

TERMINAL WIRE SIZE, VOLTAGE AND RESISTANCE (RT) DATAManufacturer Phoenix Weidmuller (SAK/WDU)Model UK1.5 UK3 UK5 UK10 2.5 4 6 10Terminal Wire Size Range (mm2)

0.14 to 1.5

0.2 to

2.5

0.2 to

4.00.5 to 10.0

0.5 to 2.5

0.5 to 4.0

0.5 to 6.0

1.5 to 10.0

Terminal Voltage (Volts) 550 550 690 600 550 550 550 550

Terminal Resistance Rt (Ohm)

4.17

x10-04

5.00

x10-04

3.75

x10-04

1.23

x10-04

3.89

x10-04

4.23

x10-04

3.93

x10-04

1.34

x10-04

MAXIMUM TERMINAL BLOCKS Quantity Offerings per Enclosure

Phoenix Weidmuller (SAK/WDU) DIN Rail QtyUK1.5 UK3 UK5 UK10 2.5 4 6 10

9 7 6 4 6 6 5 4 121 17 14 9 15 14 11 9 127 22 18 11 19 17 14 11 136 29 25 15 25 23 19 15 145 37 32 19 32 29 24 19 190 74 64 38 64 58 48 38 2

N MAXIMUM POWER Dissipation (Watts)

T6 at Tamp = +40 C

T5 at Tamp = +55 C

Actual Dimensions (mm)

Catalog NumberHeight Width Depth

3.8 W 3.8 W 102 102 76 EXE10210276SS6E

6.9 W 6.9 W 152 152 102 EXE152152102SS6E

6.9 W 6.9 W 178 178 102 EXE178178102SS6E

9.6 W 9.6 W 216 146 127 EXE216146127SS6E

9.6 W 9.6 W 254 254 127 EXE254254127SS6E

P


POWER & TERMINAL BLOCK QUANTITY MATRIX

HINGE-COVER ZONEX (STANDARD SIZES)

MAXIMUM TERMINAL BLOCKSQuantity Offerings per Enclosure

Phoenix Weidmuller (SAK/WDU) DIN Rail QtyUK1.5 UK3 UK5 UK10 2.5 4 6 10

41 33 28 17 29 26 21 17 182 66 56 34 57 52 43 34 2123 99 84 51 86 78 64 51 365 53 44 27 46 42 34 27 1130 106 88 54 92 84 68 54 2195 159 132 81 138 126 102 82 365 53 44 27 46 42 34 27 1130 106 88 60 92 84 68 54 2195 158 133 81 138 126 102 81 390 72 61 37 63 58 47 38 1180 144 122 74 126 116 94 76 2270 216 183 111 189 174 141 114 390 72 61 37 63 58 47 38 1180 144 122 74 126 116 94 76 2270 216 183 111 189 174 141 114 3360 288 244 148 252 232 188 152 4111 90 75 46 78 72 58 47 1222 180 150 92 156 144 116 94 2333 270 225 138 234 216 174 141 3444 360 300 184 312 288 232 188 4111 90 75 46 78 72 58 47 1222 180 150 92 156 144 116 94 2333 270 225 138 234 216 174 141 3444 360 300 184 312 288 232 188 4555 450 375 230 390 360 290 235 5150 121 102 62 105 97 79 63 1300 242 204 124 210 194 158 126 2450 363 306 186 315 291 237 189 3600 484 408 248 420 388 316 252 4750 605 510 310 525 485 395 315 5150 121 102 62 105 97 79 63 1300 242 204 124 210 194 158 126 2450 363 306 186 315 291 237 189 3600 484 408 248 420 388 316 252 4750 605 510 310 525 485 395 315 5186 150 126 77 130 120 98 78 1372 300 252 154 260 240 196 156 2558 450 378 231 390 360 294 234 3744 600 504 308 520 480 392 312 4930 750 630 385 650 600 490 390 5

N MAXIMUM POWER Dissipation (Watts)

T6 at Tamp = +40 C

T5 at Tamp = +55 C

Actual Dimensions (mm)

Catalog NumberHeight Width Depth

16.5 W 16.5 W 300 300150

210

EXE300300150SS61E EXE300300150SS61HE

EXE300300210SS61E EXE300300210SS61HE

18.5 W 18.5 W 400 300150

210

EXE400300150SS61E EXE400300150SS61HE

EXE400300210SS61E EXE400300210SS61HE

18.5 W 18.5 W 400 400150

210

EXE400400150SS61E EXE400400150SS61HE

EXE400400210SS61E EXE400400210SS61HE

23.5 W 23.5 W 500 400150

210

EXE500400150SS61E EXE500400150SS61HE

EXE500400210SS61E EXE500400210SS61HE

25.5 W 25.5 W 500 500 210 EXE500500210SS61E EXE500500210SS61HE

28 W 28 W 600 500 210 EXE600500210SS61E EXE600500210SS61HE

28 W 28 W 600 600210

300

EXE600600210SS61E EXE600600210SS61HE

EXE600600300SS61E EXE600600300SS61HE


33 W 33 W 750600

750

210

300

EXE750600210SS61E EXE750600210SS61HE

EXE750750300SS61E EXE750750300SS61HE


P

Color shaded areas are maximum physical quantity of terminal blocks that will fit enclosure, not necessarily the allowable quantity.Actual allowable quantity is determined by amperage and power allowed through provided mathematical formula.* Maximum dissipated power based on screw type terminal blocks. Weidmuller 2.5 and smaller wire size limited to 15 amperes.


R Combined Terminal Resistance Factor

This factor is used to determine the number of terminals that can be accommodated within the enclosure without exceeding the enclosure maximum wattage rating. The combined terminal resistance factor (R) is the sum of the individual terminal resistances (Rt) and the resistance of the cable core equal in length to the enclosure maximum diagonal (Rw). The core resistance has been defined in the standard BS EN 60228.

• Wattage to be Dissipated (P) = N x R x I²

• Total Number of Terminals (N)

• Combined Terminal Resistance Factor (R) = (Rt + Rw) the sum of terminal resistance [Rt] and wire resistance [Rw]

• Maximum Current (amps) used in the application = (I)

EXAMPLE:

A customer wants to determine the number of WDU 2.5 terminals that could be used in an EXE300300150SS61E enclosure rated at 17.5 watts (P) and at 10 amps (I).

Solving for N in the above formula N = P / (R x I2):

N = 16.5 / (0.00345 x 102)

N = 47

The maximum physical number of WDU 2.5 terminals that can be installed on a single rail is 29 and a total of 3 rails can be installed in the enclosure, therefore two rows of 23 terminal blocks could be accommodated in the enclosure.

COMBINED TERMINAL RESISTANCE FACTOR MATRIX

ZONEX ENCLOSURES (STANDARD SIZES)

COMBINED TERMINAL RESISTANCE FACTOR

Power ratings (Watts) Phoenix Weidmuller (SAK/WDU)UK1.5 UK3 UK5 UK10 2.5 4 6 10

EXE10210276SS6E 3.8 W 0.00238 0.00171 0.00112 0.00042 0.00159 0.00117 0.00089 0.00043EXE152152102SS6E 6.9 W 0.00330 0.00227 0.00147 0.00056 0.00215 0.00152 0.00113 0.00057EXE178178102SS6E 6.9 W 0.00370 0.00251 0.00163 0.00062 0.00240 0.00167 0.00123 0.00063EXE216146127SS6E 9.6 W 0.00393 0.00265 0.00171 0.00065 0.00254 0.00176 0.00129 0.00066EXE254254127SS6E 9.6 W 0.00503 0.00332 0.00213 0.00082 0.00321 0.00218 0.00157 0.00083EXE300300150SS61E EXE300300150SS61HE 16.5 W 0.00559 0.00360 0.00231 0.00090 0.00345 0.00217 0.00156 0.00096

EXE300300210SS61E EXE300300210SS61HE 16.5 W 0.00586 0.00376 0.00242 0.00094 0.00361 0.00227 0.00163 0.00100

EXE400300150SS61E EXE400300150SS61HE 18.5 W 0.00642 0.00410 0.00262 0.00102 0.00395 0.00248 0.00177 0.00108

EXE400300210SS61E EXE400300210SS61HE 18.5 W 0.00665 0.00424 0.00271 0.00106 0.00409 0.00257 0.00183 0.00111

EXE400400150SS61E EXE400400150SS61HE 18.5 W 0.00714 0.00454 0.00290 0.00113 0.00439 0.00275 0.00195 0.00119

EXE400400210SS61E EXE400400210SS61HE 18.5 W 0.00735 0.00466 0.00298 0.00116 0.00451 0.00283 0.00200 0.00122

EXE500400150SS61E EXE500400150SS61HE 23.5 W 0.00798 0.00504 0.00321 0.00126 0.00489 0.00306 0.00216 0.00131

EXE500400210SS61E EXE500400210SS61HE 23.5 W 0.00816 0.00515 0.00328 0.00128 0.00500 0.00313 0.00221 0.00134

EXE500500210SS61E EXE500500210SS61HE 25.5 W 0.00889 0.00559 0.00355 0.00139 0.00544 0.00341 0.00239 0.00145

EXE600500210SS61E EXE600500210SS61HE 28 W 0.00971 0.00608 0.00386 0.00152 0.00593 0.00372 0.00259 0.00157

EXE600600210SS61E EXE600600210SS61HE 28 W 0.01046 0.00653 0.00414 0.00163 0.00638 0.00400 0.00278 0.00169

EXE600600300SS61E EXE600600300SS61HE 28 W 0.01076 0.00671 0.00425 0.00167 0.00656 0.00411 0.00286 0.00173

EXE750500210SS61E EXE750500210SS61HE 28 W 0.01105 0.00688 0.00436 0.00172 0.00673 0.00422 0.00293 0.00178

EXE750600210SS61E EXE750600210SS61HE 33 W 0.01172 0.00728 0.00461 0.00182 0.00713 0.00447 0.00309 0.00187

EXE750750300SS61E EXE750750300SS61HE 33 W 0.01309 0.00810 0.00513 0.00202 0.00795 0.00498 0.00344 0.00208

EXE900600210SS61E EXE900600210SS61HE 33 W 0.01308 0.00810 0.00512 0.00202 0.00795 0.00498 0.00344 0.00208

INTEGRATOR PARTNER PROGRAM

In response to the increasing demand for integration of increased safety ATEX/IECEX approved enclosures, HOFFMAN has developed a certified integrator program that allows approved integration companies to provide value-added enclosure solutions on belfalf of the HOFFMAN brand.

The Integrator Partner Program will:• Allow enclosures to be populated with terminal blocks• Modify enclosures with holes, cutouts and customer tags• Provides ATEX/IECEX certificate for the assemblyThe Integrator Partner Program makes full use of HOFFMAN’s industry-leading network of authorized distributors and their broad stock of enclosures to provide fast and efficient delivery.


ATEX-CERTIFIED ACCESSORIES

HAZARDOUS LOCATION THERMOSTAT

For temperature control of heaters or low-temperature alarms in enclosures used in explosion-hazardous areas, HOFFMAN’s Hazardous Location Thermostat features compact design and a robust thermostatic bimetallic sensor element for >100,000 cycle service life. The thermostat is usually connected directly and switched without the need for additional relays and offers high switching capacity with small hysteresis (switching difference).

LOCK INSERTS (WITH KEY)

Lock inserts are field-installable. Stainless steel material and different key locking systems provides maximum protection for your equipment.

HAZARDOUS LOCATION WINDOW KITS

Hazardous Location Window Kits are designed to be used on Increased Safety (Ex e) enclosures in ATEX or IECEx Zone 1 or 2 hazardous areas. These window kits are made with a robust heavy-gauge Type 316 stainless steel frame and a silicone gasket to ensure a dust-, oil-, and water-tight seal. Designed for use as viewing windows, these window kits are ideal for visibility of internal enclosure components. The window are easily installed by making a cutout in the enclosure and attaching the window and frame with included mounting hardware.

HAZARDOUS LOCATION HEATER

Designed for use in hazardous locations where electronic components require protection from condensation and corrosion, sudden temperature drops and low temperatures, HOFFMAN’s Hazardous Location Heater offers maintenance-free, high-performance heating with a large convection surface, an extruded aluminum heat sink and 110-120 VAC operation.

HAZARDOUS LOCATION BREATHER DRAINS

Hazardous Location Breather Drains prevent moisture build-up within hazardous approved enclosures while maintaining enclosure UL Type rating. Drains are to be used when an enclosure is subject to fluctuations in temperature which can lead to the formation of condensation and a subsequent moisture build-up. These drains allow air within an enclosure to breathe with the surrounding atmosphere, preventing condensation and any potential damage to electrical equipment.

LARGE-VOLUME ATEX PURGE SYSTEM TYPE Y, Z AND EX [PZ]

Designed to supply one or more enclosures with a protective gas supply, HOFFMAN’s Ex [pz] purge system is designed and certified according to European requirements of ATEX Directive 94/9 EC and EN60079-2 for Type Ex [pz] applications. ATEX-certified Ex [pz] purge systems reduce the classification in the protected enclosure from Zone 2 to non-hazardous, allowing the use and operation of general purpose equipment in the protected enclosure. Used as a Type Y purge reduces classification from Div. 1 to Div. 2. Type Z purge reduces classification from Div. 2 to Non-Hazardous.

Purge/pressurization systems can be used for electronics, electrical equipment, motors and switch gear in wall-mount to large enclosures, and also meet the demands of rack-mounted instrumentation, video displays, programmable controllers, computers, printers, recorders and measurement and calibration equipment. Available for 90 cubic feet maximum enclosure volume in vertical mount (VM) or horizontal mount (HM) models.

Industry Standards (volume up to 90 cubic feet) 3003 WPSA

Type Y System UL and FM Certified: Class I, Division I Group A,B,C, and D/Zone 1, Groups IIB and H2 to Division 2/Zone 2 Type Z System UL and FM Certified: Class 1, Division 2 Group A,B,C, and D/Zone 2, Groups IIB and H2 to Non-hazardous

ATEX Certified II 3 (3) G Ex [pz] II, -29 C ≤ Tamb. ≤ 49 C

CADDY ERICO HOFFMAN RAYCHEM SCHROFF TRACEROur powerful portfolio of brands:

FOR MORE INFORMATION AND TO CONTACT US, GO TO: NVENT.COM/HOFFMAN

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