Datasheet
Data sheet
Bolt-type screw terminals
WFF 70
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 26
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Creation date November 28, 2019 9:11:29 AM CET
Catalogue status 22.11.2019 / We reserve the right to make technical changes. 2
Dimensions and weights
Width 31.8 mm
Width (inches) 1.252 inch
Height 132 mm
Height (inches) 5.197 inch
Depth 61 mm
Depth (inches) 2.402 inch
Depth including DIN rail 69.5 mm
Weight
176.5 g
Net weight 158.5 g
Temperatures
Operating temperature range For operating temperature
range see EC Design
Test Certificate / IEC Ex-
Certificate of Conformity
Storage temperature, max.
40 °C
Storage temperature, min. 10 °C
Storage temperature 10 °C...40 °C
Continuous operating temp., min. -50 °C
Continuous operating temp., max. 120 °C
Material data
Material Wemid
Colour
dark beige
UL 94 flammability rating V-0
Rating data IECEx/ATEX
Certificate No. (ATEX) KEMA98ATEX1684U
Certificate No. (IECEX) IECEXKEM07.0053U
Max. voltage (ATEX) 1100 V
Current (ATEX) 167 A
Wire cross section max. (ATEX) 70 mm²
Max. voltage (IECEX) 1100 V
Current (IECEX) 167 A
Wire cross section max. (IECEX) 70 mm²
Operating temperature range For operating temperature
range see EC Design
Test Certificate / IEC Ex-
Certificate of Conformity
Marking EN 60079-7
Ex eb II C Gb
Ex 2014/34/EU label II 2 G D
System specifications
End cover plate required No
Number of levels 1
Number of clamping points per level 2
Levels cross-connected internally No
PE connection No
Rail TS 35
Additional technical data
Explosion-tested version Yes
Number of similar terminals 1
Open sides closed
Type of mounting Snap-on
CSA rating data
Certificate No. (CSA) 200039-1244019
Current size C (CSA) 170 A
Voltage size C (CSA) 600 V
Wire cross section max. (CSA)
00 AWG
Wire cross section min. (CSA) 14 AWG