Guide to crimped terminal pull-off forces
Try our guide to finding the right test solution for your terminal strength testing, with simple reference table of anticipated pull-off forces for crimped terminal testing (copper or copper alloy conductor crimps).
| Conductor CSA mm2 | Minimum pull-off force (N) | BSI wire size no. | Nominal CSA mm2 BS G231 | Anticipated maximum pull-off force (N) | Recommended solution(s) |
|---|---|---|---|---|---|
|
0.014 - 0.023 0.035 - 0.051 0.055 - 0.082 0.086 - 0.128 0.132 - 0.154 |
3 7 10 17 20 |
32 30 28 26 |
0.035 0.055 0.1 0.15 |
6 14 20 34 40 |
MultiTest-dV and AFG/VFG 50-500 N or OmniTest 1 and ELS 50-500 N |
|
0.201 - 0.252 0.283 - 0.292 0.324 - 0.426 0.438 - 0.507 0.511 - 0.636 0.66 - 0.786 0.821 - 0.91 |
30 40 50 70 80 100 120 |
24
22
20
|
0.25
0.4
0.6
|
60 80 100 140 160 200 240 |
MultiTest-dV and AFG/VFG 250-500 N or OmniTest 1 and ELS 50-500 N |
|
0.933 - 1.022 1.083 - 1.17 1.23 - 1.37 1.394 - 1.42 1.47 - 1.57 1.67 - 1.76 - 1.87 |
140 155 175 190 210 230 240 |
18
16
|
1.0
1.2
|
280 310 350 380 420 460 480 |
MultiTest-dV and AFG/VFG 500-1000 N or OmniTest 1 and ELS 500-1000 N |
|
1.9 - 2.11 2.52 - 2.7 2.88 - 3.32 3.52 - 3.73 |
260 300 380 450 |
14
12
|
2.0
3.0
|
520 600 760 900 |
MultiTest-dV and AFG/VFG 1000-2500 N or OmniTest 1/2.5 and ELS 1000-2500 N |
|
3.96 - 3.97 4.56 - 5.33 5.67 - 7.1 8.01 - 8.75 9.6 - 10.8 12.5 - 13.6 |
510 570 660 850 1000 1200 |
10
8
6 |
5.0
9.0
14.0 |
1020 1170 1320 1700 2000 2400 |
MultiTest-dV and AFG/VFG 2500 N or OmniTest 2.5 and ELS 2500 N |
|
14.29 - 16.45 17.68 - 19.4 19.8 - 22.5 24.0 - 27.2 |
1350 1600 1800 2100 |
4 | 22.0 |
2700 3200 3600 4200 |
OmniTest 5 and ELS 5 kN |
|
31.6 - 34.9 38.0 - 40.7 47.3 - 53.0 59.8 - 70.7 |
2600 3100 3800 5000 |
2 1 0 00 |
34.0 42.0 53.0 68.0 |
5200 6200 7600 10000 |
OmniTest 10 and ELS 10 kN |
|
76.8 - 84.3 88.0 - 92.0 93.0 - 95.0 99.0 - 109.3 |
6200 6900 7300 7900 |
000
0000 |
85.0
107.0 |
12400 13800 14600 15800 |
OmniTest 25 and ELS 25 kN |
The above figures (exc. right hand columns) are approximate and have been extracted from the graphs contained in BS G 178 Part 2, within the conductor ranges 0.132mm2 to 109mm2, for information and test solution guidance only.
Actual pull-off forces may vary and we can evaluate and demonstrate testing solutions with your test specimen, tailored to your specific testing requirements.
