User Documentation

4 Conguration | Use in a potentially explosive atmosphere
17Manual u-control2604080000/03/08.2020
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.
IP54
Zone 2
safe area
no ex-approval
u-remote
II 3G Ex nA
II 3G Ex nA nC
Use in a potentially explosive atmosphere
ATEXmarking(internalcertication)
II 3 G Ex nA IIC T4 Gc
WI 13ATEX0002X
Ta: -20°C … +60°C
ATEXmarking(externalcertication)
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
Calculation of power loss for the use in a potentially explo-
sive atmosphere
You will nd the module specic 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 ne-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
2
and
1.5mm
2
can be connected.
We recommend using the following wire-end ferrules:
Cross-section
AWG
Weidmüller order no.
Weidmüller colour code
Weidmüller order no.
DIN colour code
0.14 mm² 26 9028240000
0.25 mm² 24 9025760000
0.34 mm² 22 9025770000
0.50 mm² 20 9025870000 9019020000
0.75 mm² 18 9025860000 9019050000
1.00 mm² 17 9025950000 9019100000
1.50 mm² 16 0635100000 9019130000
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)