Weidmuller ATEX 1338 W-Series Modular Terminal Blocks Instruction Manual
- June 4, 2024
- Weidmuller
Table of Contents
Weidmuller ATEX 1338 W-Series Modular Terminal Blocks
Modular Terminal Blocks: WDU/WPE| |
---|---|---
| | Order No
Version:| WDU 10 SL| 9537480000
| WDU 10 SL/EN| 9537490000
in conjunction with:| | Order No
| WPE 10| 1010300000
Accessories:| Type| Order No
End Plate| WAP 2.5-10| 1050000000
Partition Plate| WTW 2.5-10| 1050010000
End bracked| WEW 35/2| 1061200000
| WEW 32/1| 1067600000
Terminal rail| TS 35/… TS 32…acc.to DIN EN 60715
Cross-connection| Screwable*| Order No
| WQV 10/2| 1052560000
| WQV 10/3| 1054960000
| WQV 10/4| 1055060000
| WQV 10/10| 1052460000
Insulation material:| |
– Type| Wemid|
– Tracking resistance (A) to IEC 60112| CTI ≥ 600|
– Flamability class to UL 94| V0|
– Operating temperature range| -60°C…+110°C (insulating material limit)
– Ambient temperature range| -60°C…+40°C (for T6 applications)
– Ambient temperature range| -60°C…+55°C (for T5 applications)
– Ambient temperature range| -60°C…+70°C (for T4 applications)
- in all colours and optional with hexagon and six lobe drive
Technical data according to IEC/EN 60079-7 (increased safety “eb”):
| WDU 10 SL
WDU 10 SL/EN| WPE 10
---|---|---
– Rated voltage, WDU 10 SL/EN on TS 35
– Rated voltage, WDU 10 SL/EN on TS 32
– Rated voltage, WDU 10 SL| 690 V
550 V
352 V|
– Rated current| 55 A / ΔT 40 K|
– Temperature rise with rated current| 39,4 K / 55 A|
– Rated current with WQV| 55 A / ΔT 40 K|
– Contact resistance
with rated conductor, 10 mm²| 0,28 mΩ| 0,22 mΩ
– Rated conductor cross section| 10 mm²| 10 mm²
– Conductor cross section solid| 1,5 – 16 mm²| 1,5 – 16 mm²
– Conductor cross section stranded| 1,5 – 16 mm²| 1,5 – 16 mm²
– Conductor cross section flexible| 0,5 – 10 mm²| 0,5 – 16 mm²
– cross section, American Wire Gauge| 16 – 6 AWG| 16 – 6 AWG
– 2 conductors with same cross-section| 1.5 – 4 mm²| 1,5 – 6 mm²
– Tightening torque range, terminal screw| 1,2 – 2,4 Nm| 1,2 – 2,4 Nm
– Tightening torque range, fixing screw| | 0,5 – 1,0 Nm
– Tightening torque range for WQV…| 0,5 – 1,0 Nm|
– Stripping length| 17 mm| 12 mm
IECEx / ATEX / UKCA Terminal and Cross-Connector Arrangements:
Max voltage data according to IEC/EN 60079-7 in conjunction with protective
conductor terminal blocks of the WPE-Series, (increased safety “eb”):
Application Case
- A Continuous
- B Adjacent – separated by a partition plate
- C Intermediate – bridging one or more unconnected terminals (e.g. every 3rd terminal) Next to a protective conductor terminal (earth) without a partition plate
- D Cross-connection with twin parallel
Application case| WDU 10 SL with WQV
10| WDU 10 SL/EN on TS35 with WQV 10| WDU 10 SL/EN on TS32 with WQV 10
---|---|---|---
| max Voltage/V| max Voltage/V| max Voltage/V
A| 352| 440| 440
C| 352| 440| 440
D| 220| 220| 220
E| 352| –| –
H| 220| 220| 220 - Information for further cross-connector arrangements will be provided on request.
Note:
If smaller cross sections than the rated cross section are used, the belonging
lower current has to be laid down in the IECEx/EC-Type Examination Certificate
of the complete apparatus.
Mounting instructions:
The WDU/WPE series is suitable for application in enclosures in atmospheres
with flammable gases or combustible dust. For use in flammable gases these
enclosures must satisfy the requirements according to IEC/EN60079-0 and
IEC/EN60079-7. For use in combustible dust these enclosures must satisfy the
requirements according to IEC/EN60079-0 and IEC/EN60079-31. Regarding the use
of accessories the instructions of the manufacturer must be followed.
Schedule of Limitations:
The WDU/WPE terminals are suitable for use in enclosures in atmospheres with
flammable gases or combustible dust. For flammable gases these enclosures must
satisfy the requirements according to IEC/EN60079-0 and IEC/EN60079-7. For
combustible dust the enclosure must satisfy the requirements according to
IEC/EN60079-0 and IEC/EN60079-31. The terminal blocks shall be placed inside a
suitable IECEx/ATEX/UKCA certified IP54 enclosure for gas atmosphere. For dust
atmosphere the terminal blocks shall be mounted inside a suitable
IECEx/ATEX/UKCA certified certified ‘t’ enclosure (IEC/EN60079-31). Under
normal operating conditions the temperature rise of the terminal blocks is
maximum 40 K, measured at the maximum permitted rated current. Due to the
above mentioned, the terminal blocks may be used in apparatus of temperature
classes T6..T1 as long as the terminal block ambient temperature range is not
exceeded. No part of terminal block must exceed 110 °C under any condition.
- T6 (- 60°C … +40 °C)
- T5 (- 60°C … +55 °C)
- T4 (- 60°C … +70 °C)
When using the type WDU/WPE especially with other terminal blocks series or
sizes or accessories the requirements for clearance and creepage distances
according to IEC/EN60079-7 must be observed. Regarding the use of covers,
cross-connectors and end brackets the instructions of the manufacturer must be
followed. For cross connection accessories, current rating, resistance across
the terminal and torque values please refer to the table under “technical
data” above. The terminal can be used with either one or two wires into either
side of the terminal. When two wires are used they must be of the same type,
and of equal sizes. No other wire sizes or types than the ones specified in
instructions must be used. The terminal blocks must either be mounted next to
another block of the same type and size or with an end plate. If smaller
conductor cross sections than the rated conductor cross sections are used,
then the corresponding lower current shall be stated in the Certificate of the
complete apparatus.
Unused terminals shall be tightened.
Essential Health and Safety Requirements:
Concerning ESRs this Schedule verifies compliance with the Annex II of ATEX /
Schedule 1 of UKCA directive and Equipment and Protective Systems Intended for
Use in Potentially Explosive Atmospheres Regulations 2016 only. By placing the
product on the market, the manufacturer declares compliance with other
relevant Directives, and all other safety related requirements including those
of Annex II / Schedule 1 of these Directives.
References
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