Use In A Potentially Explosive Atmosphere; Push In" System Cabling - Weidmüller UC20-SL2000-EC-CAN Manual

4.4

Use in a potentially explosive atmosphere

Please regard the safety notes in section 2.3.
If the u-remote station is used in a potentially explosive
atmosphere rated as Zone 2, the housing must meet the re-
quirements of explosion protection type Ex n or Ex e and pro-
tection class IP54. Sensors and actuators that are located in
Zone 2 or in a safe zone can be connected. All cable glands
on the housing must be approved for Ex e.
safe area
u-remote
Zone 2
Use in a potentially explosive atmosphere
ATEX marking (internal certification)
II 3 G Ex nA IIC T4 Gc
WI 13ATEX0002 X
Ta: -20 °C ... +60 °C
ATEX marking (external certification)
II 3 G Ex nA IIC T4 Gc
DEMKO 15ATEX1525 X
Ta: -20 °C ... +60 °C
II 3 G Ex nA nC IIC T4 Gc (relay modules)
DEMKO 15ATEX1525 X
Ta: -20 °C ... +60 °C
IECEx marking
Ex nA IIC T4 Gc
IECEx ULD 15.0013X
Ex nA nC IIC T4 Gc (relay modules)
IECEx ULD 15.0013X
2604080000/03/08.2020
no ex-approval
IP54
II 3G Ex nA
II 3G Ex nA nC
Manual u-control
4 Configuration | Use in a potentially explosive atmosphere
Calculation of power loss for the use in a potentially explo-
sive atmosphere
You will find the module specific data needed for calculation
in the document "WI13ATEX0002_Power_Calc.pdf" which
you can download from the Weidmüller website.
4.5

"PUSH IN" system cabling

Controllers are equipped with the "PUSH IN" connector sys-
tem. Single-strand and fine-strand lines with wire-end ferrules
can be inserted without the need for a tool. Copper wires
with a cross-section measuring between 0.14 mm
1.5 mm can be connected.
2
We recommend using the following wire-end ferrules:
Cross-section Weidmüller order no.
AWG Weidmüller colour code
0.14 mm² 26 9028240000
0.25 mm² 24 9025760000
0.34 mm² 22 9025770000
0.50 mm² 20 9025870000
0.75 mm² 18 9025860000
1.00 mm² 17 9025950000
1.50 mm² 16 0635100000
Wire-end ferrules for the wiring
The external dimensions of the crimped wire-end ferrules
must conform with IEC-60947-1. For crimping, we recom-
mend crimp shape A and the following tools:
– Crimping tool for wire-end ferrules from 0.25 mm² to
1.5 mm² (AWG 24 to 16) with a trapezoidal indentation
crimp, type: PZ 6/5 ZERT (Order No. 9017900000)
– Crimping tool for wire-end ferrules from 0.14 mm² to
0.75 mm² (AWG 26 to 18) with a trapezoidal crimp, type:
PZ 1.5 ZERT (Order No. 9017310000)
and
2
Weidmüller order no.
DIN colour code
9019020000
9019050000
9019100000
9019130000
17