Features

The TNUP range comprises many standard sizes of enclosures manufactured in glass fi bre reinforced polyester to give the best environmental protection. • Product range with standard sizes. • Ingress protection to meet harsh environment with IP66

as standard.• Suitable for demanding environments.• Temperature range (-20°C to +40°C).

• Cover screws in SS316.• Many cable entry options.• May be used as a connection box for intrinsically

safe circuits.• High operational reliability and cost effi ciency,

reduced lifetime maintenance costs.

• ATEX approved.

Technor as, Dusavikv. 39, P.O. Box 658, NO-4003 Stavanger, Norway

Phone: +47 51844100, Fax: +47 51844101, E-mail: mail@technor.no. www.technor.no

EEx e, ia Junction boxes

TNUP

Applications

The TNUP range of boxes is suitable for demanding environment like the North Sea environment. They are ideal for Petrochemical and Marine applications and also for all kind of industry where an explosive atmosphere may be present.

General Specifi cations

EEx e, ia Junction boxes

An ignition temperature is the temperature at which a hot surface will cause an ignition to occur in a given atmosphere. Dependent on the type of gas or dust, the maximum temperature that the surface of the terminal box can reach without a spontaneous ignition is known as the ‘T Class’. The maximum surface temperature must always be lower than the ignition temperature of the atmosphere in which the junction box is used.

The terminal boxes within the TNUP range have been assigned a maximum heat dissipation relating to the ambient temperature and T Class. The TNUP range offers T6 protection:

T6 = Maximum 85°C (Internal wiring must have a temperature rating of at least 85°C)

For some applications it may be necessary to have several terminal sizes. The power heat dissipation determines the maxi-mum number of terminals permissible for any size of terminal box, based on a 100% load. The following tables and examples demonstrate how this is solved in the same junction box.

Example (TNUP 161609)

Number of terminals

Terminal/conductorsize (mm2)

Current(Amps)

Number of terminals

Load=100%maximum

1,5 10 10 (of max 25) 40%

2,5 16 6 (of max 16) 37,50%

4 20 4 (of max 18) 22,22%

Total load 99,72%

Material Glass fi bre reinforced polyester (GRP)IP Rating IP66 according to IEC 529Temperature -20°C – +40°C (T6)

Approvals DNV-2003-OSL-ATEX-0207X

Standards Cenelec EN50014, EN50019, EN50020, IEC 60529

Ex-Code EEx e II T6 EEx e[ia] IIC T6 EEx ia IIC T6 II 2 G

Colour Black

Cover Screws SS316

Voltage Max. 750V

Earthing PE bar and/or earth terminals Earth continuity plate/earth tag upon request

Glands Plastic or metal, quantities according to table

Terminals According to table

Drain plug Upon request

Terminal size (mm2)TNUP252512 1,5 2,5 4 6 10 16 25 35

Curr

ent (

A)

10 3516 12 23 9020 5 13 2625 6 14 2835 4 11 2450 1 9 1963 3 10 1680 4 11 13100 5 11125 4

Terminal size (mm2)TNUP361609 1,5 2,5 4 6 10 16 25 35

Curr

ent (

A)

10 5316 18 35 13820 7 20 4025 9 22 4335 6 17 4250 2 14 3563 4 16 5880 6 18 65100 7 17125 7

Terminal size (mm2)

TNUP161609 1,5 2,5 4 6 10 16

Curr

ent (

A)

10 48

16 16 32 125

20 7 19 36

25 9 20 39

35 6 15 38

50 2 12 32

63 4 14

80 6

Terminal size (mm2)TNUP 121209 1,5 2,5 4 6 10

Curr

ent (

A)

10 1616 7 1420 3 8 1625 3 9 1235 2 650 1

Terminal size (mm2)TNUP402512 1,5 2,5 4 6 10 16 25 35

Curr

ent (

A)

10 3816 13 25 9820 5 14 2825 7 16 3135 4 12 3050 1 9 2563 3 11 4180 4 22 46100 5 12125 4

Terminal size (mm2)TNUP404117 1,5 2,5 4 6 10 16 25 35

Curr

ent (

A)

10 3716 12 24 9620 5 14 2825 7 15 3035 4 12 2950 1 9 2463 3 11 4080 4 12 19100 10 12125 4

EEx e, ia Junction boxes

DepthSide

WidthA/BM20

A/BM25

A/BM32

A/BM40

09

12 4 3 2 1

16 6 4 2 2

36 18 11 7 5

1225 17 11 7 4

40 27 17 13 6

16 40 40 27 20 16

Entry Table

Terminal Load Confi guration

Type Width (cm) Height (cm) Depth (cm) Weight (kg) GA-Dwg.121209 123 120 91 1,1 TNU-35-6161609 160 160 92 1,5 TNU-36-6252512 255 250 120 2,9 TNU-37-6361609 360 160 92 2,5 TNU-39-6402512 400 250 120 4,3 TNU-49-6404117 400 405 165 6,1 TNU-40-6

The boxes are delivered with screws in lid as standard.

The table is guidance for the maximum quantity of glands for installation in 1 face (the Width column in the table) on TNUP junction boxes. The quantity is based upon use of Polyamide glands. Note! Recommended quantity is 2/3 of guided quantity.

A

DC

B Possible entry faces on TNUP.

TNUP Measurement Table - Range of stocked boxes

Features

ATEX DirectiveThe ATEX Directive, derived from the French “ATmosphères EXplosibles” and formally known as 94/9/EC, contains the ESR (Essential Safety Requirements) to which electrical equipment and protective systems used within potentially explosive atmospheres must conform.

The new ATEX Directive currently in place within the European Union was made mandatory on 1st July 2003. Primarily intended for manufacturers of hazardous area equipment for use in the presence of fl ammable gases, vapours, fumes or dusts, the new directive requires a quality management system to be implemented.

Procedures for the design, manufacture and verifi cation of products are to be approved by a notifi ed body (i.e. DNV, NEMKO, etc.) and all equipment conforming to the new directive will feature CE and Ex Marking.

Hazardous area information & terminology

Zone Classifi cation with the presence of GASZone 1(Category 2)

An area in which explosive gas is likely to be present during normaloperation of the plant.

Zone 2(Category 3)

An area in which explosive gas is not continuously present, but may exist for a short period of time.

Applicable EX protectionEEx e Protectionfor electrical components that do not spark under normal working conditions but where measures are applied to prevent high tempera-tures and the occurence of arcs and sparks internally.

EEx ia Protectionfor equipment containing intrin-sically safe circuits, which are incapable of causing an explosion in the surrounding atmo sphere, that is where current and voltage in normal operation would not pro-duce enough spark energy or heat to ignite any potentially explosive gases.

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EEx e, ia Junction boxes

Technor as, Dusavikv. 39, P.O. Box 658, NO-4003 Stavanger, Norway

Phone: +47 51844100, Fax: +47 51844101, E-mail: mail@technor.no. www.technor.no