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WAGO Rail-Mount Terminal Block Systems
Technical Information
Mechanical Tests (continued)
Tests and Testing Procedures per IEC/EN Standards (continued)
• Pull-Out Test per IEC/EN 60947-7-1, IEC/EN 60998-2-2, IEC/EN 60999-1
Conductor Pull-Out Forces
The clamping units screwless terminal
blocks must withstand the pull-out forces as
follows:
IEC 60947-1/EN 60947-1/VDE 0660‑100,
Table 5:
Low-voltage switchgear and controlgear,
General rules
IEC 60947-7-1/EN 60947-7-1/
VDE 0611-1, Rail-mount terminal blocks for
copper conductors
IEC 60998-2-1/EN 60998-2-1/
VDE 0613-2-1, Table 104:
IEC 60998-2-2/ 60998-2-2
VDE 0613-2-2, Table 103:
Connecting devices for low-voltage circuits
for household and similar purposes
Particular requirements for connecting
devices separate entities with screw-
clamp screwless terminal blocks. The pulling force selected according
to the cross-sectional area.5
–
16
35
40
35
40
35
40
2. During the test, the
conductor must neither slip out the clamping unit, nor break near the clamping unit.5
4
14
12
50
60
50
60
50
60
6
10
10
8
80
90
80
90
80
90
16
25
6
4
100
135
100
135
100
135
–
35
3
2
156
190 190 190
–
50
1
1/0
236
236 236
70
95
2/0
3/0
285
351
285
351
–
120
4/0
250
427
427
427
427
150
185
300
350
427
503
427
503
–
240
400
500
503
578
503
578
300 600 578 578
.
During the test, pulling force applied without jerking, for one minute, the connected conductor.34
24
22
10
15
10
15
10
15
0.
Rated
Cross-
Section
Pull-Out Forces per IEC/EN
60947-7-1 60998-2-2 60999-1/-2
mm² AWG/kcmil N
0. The values specified these standards are the same for both screw clamp and spring clamp terminal blocks.6
www.
IEC 60999-1/EN 60999-1/VDE 0609-1, Table
3:
IEC 60999-2/EN 60999-2/VDE 0609‑101,
Table 2:
Safety requirements for screw-clamp and
screwless clamping units for electrical cop-
per conductors
The pull-out test simulates the mechanical stress the clamping unit when, for example, the installer pushes the conductor aside better
access/operate the adjacent clamping unit, verifies the conductor connected properly briefly pulling it.5 mm² (16 AWG) and 100 for conductor with cross section mm²
(6 AWG). The larger the cross section the conductor, the higher the pull-out force that selected.5
0.75
20
18
20
30
20
30
20
30
1
1. For example, the pull-
ing force for conductor having cross section 1.wago.2
0
