3M
3M 8426-11 Cold Shrink Insulator 1.18 in ID 11 in Black PK10
Cold-shrink EPDM rubber insulator fits 2/0 to 250 MCM wire, shrinking from 1.18 in to .55 in ID over 11 in length
- Cold-shrink installation needs no heat tool
- EPDM rubber resists UV and weather exposure
- Fits 2/0 AWG to 250 MCM cable range
- Shrinks from 1.18 in to .55 in ID
- Operates from -40 to 194 degrees F
Cold Shrink Insulator 1.18 in ID
The 3M 8426-11 Cold Shrink Insulator provides a tool-free sealing solution for electrical splices and terminations. It is designed for electricians and maintenance crews working with wire sizes from 2/0 AWG to 250 MCM. The EPDM rubber construction delivers reliable insulation without requiring a heat source.
Replaces heat-shrink methods
This cold shrink tubing eliminates the need for torches or heat guns on job sites where open flame is restricted. The jump is worth it when installation speed and safety are priorities, especially in confined spaces or adverse weather. It slides over the connection and shrinks to a 0.55 in inner diameter after core removal.
Handles up to 1000 V dielectric
Each 11 in length withstands voltages up to 1,000 V and operates continuously from -40 to 194 degrees F. The UV-resistant black EPDM rubber suits outdoor exposure but is not flame retardant and carries no adhesive lining. The pack of 10 pieces covers multiple splices, though wall thickness after shrinking is not rated for high-abrasion environments.
Highlights
- Cold-shrink installation needs no heat tool
- EPDM rubber resists UV and weather exposure
- Fits 2/0 AWG to 250 MCM cable range
- Shrinks from 1.18 in to .55 in ID
- Operates from -40 to 194 degrees F
Specifications
| Brand | 3M |
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Questions about this item
What cable diameter will fit inside the 1.18 in pre-shrink ID of the 3M 8426-11 insulator?
The insulator accepts wire sizes from 2/0 AWG up to 250 MCM; its pre-shrink inner diameter is 1.18 in and shrinks down to .55 in for a tight seal.
How do I install the 3M 8426-11 cold shrink tube without heat tools, and what step is commonly missed?
Position the tube over the cable, then unwind the removable core in a smooth spiral; the step often missed is ensuring the core releases evenly so the EPDM rubber contracts fully around the joint.
When should the 3M 8426-11 cold shrink insulator be inspected or replaced after installation?
Inspect after any fault current event or if the black EPDM surface shows cracking, chalking or UV degradation; the material is rated from -40 to 194 Degrees F and is UV light-resistant.
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