Wiha Professional Electric Crimping Pliers for MC4 Connectors - 45796
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Wiha 45796 Professional Electric Crimping Pliers Tool For MC4 Connectors SolarFree delivery in 1–3 days£144.99Visit shop →
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Rapid Online - Rapid Electronics Ltd.Wiha 45796 Crimp Tool for MC4 connectors 2,5 - 6 mm²
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Product Information
Full details
The Wiha Professional Electric Crimping Pliers (45796) are designed for professional solar installers and technicians working with MC4 and MC4-Evo2 connectors on 2.5, 4, and 6 mm² solar cables. This tool provides a highly reliable, automatically adjusted crimping force that ensures consistent, high-quality electrical connections for photovoltaic systems. While it excels at precision and user comfort, users should note that its specialized design is optimized strictly for these specific connector types and cable sizes, limiting its versatility for other electrical tasks.
All features
| Model Part Number | 45796 |
|---|---|
| Brand | Wiha |
Extended Product Information
FAQs
Can I use these pliers for non-MC4 connectors?
No, these pliers are specifically engineered for MC4 and MC4-Evo2 solar connectors and will not provide a secure or compliant crimp for other connector types.
Does the tool require calibration?
The pressure mechanism is automatically adjusted, but like all precision hand tools, it should be inspected for wear periodically to ensure it still meets original specifications.
How do I use the emergency release?
If you need to stop a cycle, locate the release lever on the handle assembly and engage it to manually open the jaws and reset the tool.
Is this tool suitable for left-handed users?
Yes, the tool is designed symmetrically to allow both left-handed and right-handed users to maintain clear visibility of the crimping zone.
What cable sizes are compatible?
This tool is compatible with 2.5 mm², 4 mm², and 6 mm² solar cables.
How should I clean the tool?
Use a soft, dry brush to remove wire shards and dust. Do not submerge the tool in solvents or water.
Troubleshooting
The crimping process cannot be completed.
Check if the wire is fully inserted and that the connector pin is aligned correctly; if the tool jams, use the integrated emergency release to open the jaws.
The crimp looks loose or the connector is wobbly.
Verify that the cable cross-section falls within the supported 2.5-6 mm² range and ensure the conductor was stripped to the correct length before insertion.
Tool handles feel difficult to squeeze.
Inspect the crimping dies for trapped wire clippings or debris and ensure the tool is not being used to crimp incompatible non-MC4 connectors.
Pros and Cons
Pros
- Consistent crimping quality for MC4/MC4-Evo2 connectors
- Reduces hand fatigue with ergonomic handle design
- Enhanced safety with the integrated emergency release function
- Provides clear visual feedback of the crimping process
- Excellent leverage transmission minimizes physical effort
Cons
- Specific to 2.5, 4, and 6 mm² cable sizes only
- Limited utility outside of solar PV assembly
- Requires proper cable stripping preparation to function correctly
Setup, Compatibility & Care
Before starting, ensure the solar cable insulation is stripped to the exact length specified by the connector manufacturer; using the wrong strip length can cause the crimp to fail or the seal to compromise. The tool is compatible with 2.5 mm², 4 mm², and 6 mm² cables and supports standard MC4 and MC4-Evo2 contact pins. To maintain performance, keep the crimping dies free of metal debris or wire fragments by periodically cleaning them with a dry brush. Avoid using lubricants on the internal ratcheting mechanism unless recommended by Wiha, as this can attract dust and grit that may cause the mechanism to bind over time.