3M, Cold Shrink Insulator 8427-12P, Tape/Wire/UniShield Shielding, 1 kV, Standard, 10/Case
7010349008 - spec sheet
Features
- Specially designed for primary insulation of solid dielectric insulated wires and cable splicing rated to 1000 volts
- Made of EPDM rubber which contains no chlorides or sulfur
- Sealing of terminal lug barrels, conduit couplings and conduit-to-cable breakouts
- Simple installation which requires no tools
- Covers a wide range of cable cross sections
- Withstands temperatures of -40 to 90 degC (-40 to 194 degF)
7010349008 - spec sheet
Manufacturer Resources
Product Specs
- Ais Url Article Information Sheet :
- https://https://cdmsweb.3m.com/ingredientcommunication/file/Media/OGArb9HsN1s
- Cable Shielding:
- Non-shielded
- Cable Type:
- Power Cable
- Conductor Material:
- Aluminum
- Country Of Origin:
- United States
- Etim Class 7 0:
- EC000217
- Etim Class 8 0:
- EC000217
- Inner Diameter After Shrink Imperial :
- 0.661 in
- Inner Diameter After Shrink Metric :
- 16.8 mm
- Inner Diameter Before Shrink Imperial :
- 1.382 in
- Inner Diameter Before Shrink Metric :
- 35.1 mm
- Manufacturing Origin:
- USA
- Maximum Conductor Size Imperial :
- 394 kcmil
- Maximum Conductor Size Metric :
- 200 mm²
- Maximum Connector Length:
- 8.0 in
- Maximum Connector Length Metric :
- 203.2 mm
- Maximum Operating Temperature Celsius :
- 90.0 Degree
- Maximum Operating Temperature Fahrenheit :
- 194.0 Degree
- Minimum Conductor Size Imperial :
- 246 kcmil
- Minimum Conductor Size Metric :
- 125 mm²
- Minimum Operating Temperature Celsius :
- -40.0 Degree
- Minimum Operating Temperature Fahrenheit :
- -40.0 Degree
- Number Of Conductors:
- 1
- Product Color:
- Black
- Product Material:
- EPDM Rubber
- Product Model:
- Cold-shrink
- Product Type:
- Splice
- Product Voltage:
- 1 kV
- Rds Url Regulatory Data Sheet :
- https://cdmsweb.3m.com/ingredientcommunication/file/Media/q3l_4Oz1wnw
- Relaxed Tube Length:
- 12.0 in
- Relaxed Tube Length Metric :
- 304.8 mm
- Rohs Eu Comments:
- RoHS 2011/65/EU compliant without exemption
- Shelf Life:
- 1800
- Splice Type:
- Cold Shrink
- Department:
- Electrical
3M 7010349008 – Frequently Asked Questions
1) What conductor sizes does the 3M 8427-12P cold shrink insulator fit?
The 8427-12P covers conductors from 246 kcmil up to 394 kcmil (125 to 200 mm2). Anything smaller or larger than that window and the tube either won't grip or won't shrink down over the connector, so size the tube to the cable before you cut anything.
2) Can I use this 3M cold shrink tube on medium voltage shielded cable?
No. The 8427-12P is a 1 kV insulator for non-shielded cable. It's primary insulation for solid dielectric wire and cable splices rated to 1000 volts, single conductor. For anything above 1 kV or for a shielded MV splice you need a medium voltage cold shrink splice kit, not this tube.
3) Do I need a torch or heat gun to install the 8427-12P?
No heat, no tools. It's a cold shrink tube: you slide it into position and pull the core out, and the EPDM rubber contracts onto the splice on its own. That makes it workable in wet vaults, confined manholes, and anywhere an open flame isn't allowed.
4) Will this hold up in an unheated outdoor pull box through winter?
Operating range runs -40 to 90 degC (-40 to 194 degF), so freezing vaults and hot conduit runs are both inside the envelope. The EPDM compound carries no chlorides or sulfur, which is why it's used against copper and aluminum terminations without staining or corrosion concerns.
5) Is the 3M 8427-12P only for splices, or can I use it to seal a conduit coupling?
Both. Besides primary insulation on solid dielectric cable splices, it's used to seal terminal lug barrels, conduit couplings, and conduit-to-cable breakouts. Same rule applies in every case: the fitting or barrel has to fall between the 1.382 in expanded ID and the 0.661 in recovered ID for the tube to seal on it.
6) Is the 8427-12P suitable for aluminum conductor, or copper only?
The 8427-12P is listed for aluminum conductor power cable, single conductor, non-shielded. Because the EPDM contains no chlorides or sulfur, it's a rubber that gets used over aluminum terminations without the corrosion risk some compounds carry.
7) Is the 3M 8427-12P RoHS compliant and where is it made?
RoHS 2011/65/EU compliant without exemption, and manufactured in the United States. That matters for federal, state, and institutional jobs carrying domestic sourcing or restricted substance language in the spec.
8) What color is the 8427-12P cold shrink tube?
Black EPDM rubber. If you're color coding phases at a splice you'll need to tag or tape over it, since the tube itself ships in one color only.
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Does the 3M 7010349008 come with a warranty?
Absolutely. The 3M 7010349008 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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