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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.