PowerFit 500A Set-Screw Connector: Conductor Axial Pull-Out Test
Axial pull-out testing of PowerFit 500A Line Source and Line Drain set-screw terminals assembled with 150 mm² copper conductors. Both configurations passed the specified 427 N load held for 60 seconds without conductor slippage.
Test setup
- Product rating
- 500A
- Conductor cross-section
- 150 mm²
- Specified axial load
- 427 N
- Load hold time
- 60 s
Report assessment
- Line Source
- PASS
- Line Drain
- PASS
- Source complete pull-out
- 5,229 N
- Drain complete pull-out
- 5,617 N
01 Measured results
| # | Test item | Force (N) | Time (s) | Result |
|---|---|---|---|---|
| 1 | Specified load verification | 427 | 60 | PASS, no slippage |
| 2 | Initial slippage | 5,115 | 201 | — |
| 3 | Complete pull-out | 5,229 | 259 | — |
| # | Test item | Force (N) | Time (s) | Result |
|---|---|---|---|---|
| 1 | Specified load verification | 427 | 60 | PASS, no slippage |
| 2 | Initial slippage | 4,661 | 186 | — |
| 3 | Complete pull-out | 5,617 | 267 | — |
02 Evaluation summary
| Criterion | Assessment |
|---|---|
| Apply 427 N axial tensile force to the 150 mm² copper conductor for 1 min; verify no conductor slippage or pull-out. | PASS |
Test reference and scope
The test refers to IEC 60947-7-1:2025, Clause 9.3.3.3 and Table 2. The standard is used solely as a test reference and does not imply compliance of the complete connector.
03 Test curves
04 Tested samples and equipment
| Item | Part number | Configuration |
|---|---|---|
| 1 | PFLS-S150M40A | PowerFit 500A Line Source set-screw conductor assembled with 150 mm² cable |
| 2 | PFLD-S150M40A | PowerFit 500A Line Drain set-screw conductor assembled with 150 mm² cable |
| Instrument | Calibration date |
|---|---|
| Universal testing machine | 2026-07-13 |
05 Purpose and scope
Purpose
To evaluate the mechanical connection reliability of PowerFit 500A set-screw line conductors, verify the axial retention of conductors installed on 150 mm² cables, and record tensile forces during initial slippage and complete pull-out.
Scope
This test applies to PowerFit 500A set-screw connector terminals installed on 150 mm² copper conductors. Axial tensile force is applied to evaluate conductor clamping and retention performance.
Acceptance statement
With reference to IEC 60947-7-1:2025, Clause 9.3.3.3 and Table 2, acceptance is based on the absence of conductor slippage or pull-out under the specified axial tensile load. Forces at initial slippage and complete pull-out are also recorded.
Source report
SEMT Report Nos. 2026JC (KP) 020 & 021
Test dates: 2026-11-04 & 2026-11-09