Knipex Self-Clamping Slip-On Cap - 98 66 20
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Product Information
Full details
The Knipex 98 66 20 Self-Clamping Slip-On Cap is an essential safety accessory designed for professional electricians and maintenance technicians who require a reliable way to insulate bare, live cable ends. Its primary benefit is the rapid, self-clamping mechanism that ensures a secure fit, preventing accidental contact with energized conductors; however, users should note that it is designed specifically for a 20 mm diameter and will not fit cables outside of this precise specification.
All features
| Model Part Number | 98 66 20 |
|---|---|
| Brand | KNIPEX |
Extended Product Information
FAQs
Is this cap rated for high-voltage applications?
This cap is designed to provide mechanical coverage for live cable ends; always verify your specific local electrical safety regulations regarding voltage ratings before use.
Can this be used on cables other than 20 mm?
No, it is specifically sized for 20 mm diameter cables. Using it on different sizes will compromise the safety and the clamping function.
Is the material conductive?
No, the cap is constructed from non-conductive, insulating material to protect against accidental contact.
Can this be reused?
Yes, it is designed for repeated use in professional applications, provided the material remains undamaged.
Does it require tape to stay in place?
No, the internal self-clamping mechanism is intended to hold the cap securely on the cable without extra fasteners.
Troubleshooting
The cap slides off easily.
Verify that the cable diameter is exactly 20 mm; if the cable is too thin, the clamping mechanism cannot maintain adequate tension.
Difficulty sliding onto the cable end.
Ensure the cable end is clean and free of burrs or stray wire strands that might obstruct the entry path of the cap.
Pros and Cons
Pros
- Provides immediate, secure insulation for live cables
- Eliminates the need for messy electrical tape
- Compact and lightweight for easy transport in a tool pouch
- High-visibility design for safety awareness
Cons
- Limited to a specific 20 mm cable diameter
- Not intended for permanent, long-term outdoor weatherproofing
- May not fit over bulky heat-shrink or connector lugs
Setup, Compatibility & Care
To use, simply align the opening of the cap with the live conductor end and slide it firmly into place until the self-clamping mechanism engages. Ensure the conductor is fully seated within the cap to prevent any portion of the metal from being exposed. Compatibility is restricted strictly to conductors with a 20 mm outer diameter; attempting to force the cap onto larger wires may damage the tension mechanism, while smaller wires may result in a loose, unsafe fit. For care, inspect the internal clamping surface regularly for debris or conductive dust, and wipe clean with a dry cloth as needed. Store the cap in a clean, dry area away from sharp objects that could compromise the insulating shell.