Data sheet
Creation date August 12, 2014 1:05:32 PM CEST
Catalogue status xx.xx.xxxx / We reserve the right to make technical changes. 1
W-Series
WDU 4 SL/EN
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
General ordering data
Type WDU 4 SL/EN
Order No. 9537450000
Version W-Series, Feed-through terminal, Rated cross-
section: 4 mm², Screw connection
GTIN (EAN) 4032248037452
Qty. 50 pc(s).
At Weidmüller, new solutions for the energy sector
are developed according to local or application-based
installation requirements.
In some countries, control and protection of switching
installations for transmission and distribution networks
must comply with the EA-TS 50-18 standard. The
standard prescribes "spring-loaded" terminals in
conjunction with hook-blade cable lugs in order to
ensure additional safety. The Weidmüller "spring-loaded"
terminals of the WDU SL series and the disconnect
terminals of the WTL SL series comply with this standard.
In the SL versions, the clamping yoke is backed up by a
helical spring. Furthermore, this arrangement permits two
conductors to be connected to one terminal when the
hook-blade cable lugs are placed back to back. The aim of
this arrangement is to ensure good electrical contact even
if someone forgets to tighten the clamping screw!
Data sheet
W-Series
WDU 4 SL/EN
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Creation date August 12, 2014 1:05:32 PM CEST
Catalogue status xx.xx.xxxx / We reserve the right to make technical changes. 2
Dimensions and weights
Width 6.1 mm
Height 60 mm
Height of lowest version 53.5 mm
Depth 51.5 mm
Weight 12.32 g
Net weight 12.512 g
Temperatures
Continuous operating temp., min. -50 °C
Continuous operating temp., max. 120 °C
Rated data IECEx/ATEX
Certificate No. (ATEX) SIRA02ATEX3242U
ATEX certificate SIRA02ATEX3242U_e.pdf
Certificate No. (IECEX) IECEXSIR05.0040U
IEC Ex certificate IECEXSIR05.0040U_e.pdf
Max. voltage (ATEX) 275 V
Current (ATEX) 28 A
Wire cross section max. (ATEX) 4 mm²
Voltage, cross-connection CrossConnectionGuide.pdf
Operating temperature range For operating temperature
range see EC Design
Test Certificate / IEC Ex-
Certificate of Conformity
Marking EN 60079-7
Ex e II
Marking ATEX Directive 94/9/EC II 2 G D
Additional technical data
Explosion-tested version No
Number of similar terminals 1
Open sides right
Type of mounting
Snap-on
Version Screw connection, with
spring-loaded cable clamp,
for screwable cross-
connection, for plug-in
cross-connector, One end
without connector
CSA ratings data
Certificate No. (CSA) 200039-1057876
Voltage size C (CSA) 300 V
Voltage size D (CSA) 600 V
Current size C (CSA) 25 A
Current size D (CSA) 5 A
Wire cross section max. (CSA)
10 AWG
Wire cross section min. (CSA) 22 AWG
Clampable wires (additional connection)
Conductor cross-section, flexible plus
plastic collar DIN 46228/1, further
connection, min. 0.5 mm²
Conductor cross-section, flexible plus
plastic collar DIN 46228/1, further
connection, max. 4 mm²
Data sheet
W-Series
WDU 4 SL/EN
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Creation date August 12, 2014 1:05:32 PM CEST
Catalogue status xx.xx.xxxx / We reserve the right to make technical changes. 3
Clampable wires (rated connection)
Type of connection Screw connection
Stripping length 15 mm
Blade size 0.6 x 3.5 mm
Connection direction on side
Number of connections 2
Clamping range, rated connection, min. 0.22 mm²
Clamping range, rated connection, max. 6 mm²
Clamping screw M 3
Tightening torque, min. 0.5 Nm
Tightening torque, max. 1 Nm
Torque level with DMS electric
screwdriver 2
Gauge to IEC 60947-1
A4
Wire connection cross section, solid
core, min. rated connection 0.5 mm²
Wire connection cross section, solid
core max. rated connection 6 mm²
Wire connection cross section, stranded,
rated connection, min. 1.5 mm²
Wire connection cross section, stranded,
rated connection, max. 6 mm²
Wire connection cross section, finely
stranded, max. 4 mm²
Wire connection cross-section, finely
stranded, min. 0.5 mm²
Wire connection cross section, finely
stranded with wire-end ferrules DIN
46228/1, rated connection, min. 0.5 mm²
Wire connection cross section, finely
stranded with wire-end ferrules DIN
46228/1, rated connection, max. 4 mm²
Wire connection cross section AWG,
min. AWG 26
Wire connection cross section AWG,
max. AWG 10
Rated data
Rated cross-section 4 mm²
Rated voltage 500 V
Rated impulse withstand voltage 6 kV
Rated current 32 A
Current at maximum wires 41 A
Standards
IEC 60947-7-1
Pollution severity 3
UL ratings data
Certificate No. (UR) E60693
Voltage size C (UR) 600 V
Current size C (UR) 30 A
Conductor size Factory wiring max. (UR) 10 AWG
Conductor size Factory wiring min. (UR) 22 AWG
Conductor size Field wiring max. (UR) 10 AWG
Material data
Material Wemid
Colour
Dark Beige
UL 94 flammability rating V-0
System specifications
Product family W-Series
Type of connection Screw connection
Connection direction on side
Number of levels 1
Number of connections 2
No. of clamping points per level 2
Levels cross-connected internally No
Mounting rail TS 32, TS 35
End cover plate required Yes
PE connection No
Classifications
ETIM 3.0 EC000897
UNSPSC 30-21-18-11
eClass 5.1 27-14-11-31
eClass 6.2
27-14-11-90
eClass 7.1 27-14-11-90
Product information
Descriptive text ordering data With pollution severity degree 2, the voltage can be raised to 630 V (no increased contamination can appear).
Descriptive text technical data Note the max. current of the terminal (41A) when using the cross-connector!
Data sheet
W-Series
WDU 4 SL/EN
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Creation date August 12, 2014 1:05:32 PM CEST
Catalogue status xx.xx.xxxx / We reserve the right to make technical changes. 4
Approvals
Approvals
ROHS Conform
Data sheet
W-Series
WDU 4 SL/EN
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Drawings
Creation date August 12, 2014 1:05:33 PM CEST
Catalogue status xx.xx.xxxx / We reserve the right to make technical changes. 5
