3M Cold Shrink Insulator 250-400 kcmil EPDM Rubber Cable Protection System

3M Cold Shrink Insulator 250-400 kcmil EPDM Rubber Cable Protection System

Professional Cable Insulation & Mechanical Protection Solution

The 3M Cold Shrink Insulator delivers reliable primary insulation and mechanical protection for solid dielectric insulated wires and cable splicing applications rated to 1000 volts. Constructed from black EPDM rubber that contains no chlorides or sulfur, this professional-grade insulator provides superior sealing performance for terminal lug barrels, conduit couplings, and conduit-to-cable breakouts with simple tool-free installation.

Professional Features & Benefits

• 250-400 kcmil Conductor Range: Accommodates large conductor sizes for high-capacity electrical installations and power distribution systems.
• 1 kV Voltage Rating: Provides reliable primary insulation for low voltage applications with proven electrical performance standards.
• EPDM Rubber Construction: Delivers superior weather resistance and durability with chloride-free and sulfur-free formulation for long-term reliability.
• Cold Shrink Technology: Enables simple tool-free installation that eliminates the need for heat guns or torches, reducing installation time and complexity.
• Wide Temperature Range: Operates reliably from -40�F to 194�F (-40�C to 90�C) for versatile environmental applications.
• 12-inch Length: Provides ample coverage for comprehensive cable protection and splice insulation requirements.
• USA Manufacturing: Ensures consistent quality and reliable supply chain for professional electrical applications.

Technical Specifications

• Application: Insulation, mechanical protection, repair
• Cable Shielding: Non-shielded|| Tape Shield|| UniShield�|| Wire Shield
• Cable Type: Non-Shieled, Solid Dielectric Power Cable
• Color Family Incorporate Product Color : Black
• Conductor Material: Aluminum|| Copper
• Conductor Size Range: 250-400 kcmil
• Conductor Sizes: 125-200 mm_
• Halogen Free: No
• 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
• Manufacturer Catalog Number: 7000005943
• Manufacturing Origin: USA
• Maximum Connector Length: 8.0 in
• Maximum Connector Length Metric : 203.2 mm
• Maximum Operating Temperature Celsius : 90 Degree Celsius
• Maximum Operating Temperature Fahrenheit : 194 Degree Fahrenheit
• Minimum Operating Temperature Celsius : -40 Degree Celsius
• Minimum Operating Temperature Fahrenheit : -40 Degree Fahrenheit
• Number Of Conductors: 1
• Overall Length Imperial : 12 in
• Overall Length Metric : 304.8 mm
• Package Height: 1.50000 in
• Package Length: 20.00000 in
• Package Weight: 0.3360 LBS
• Product Material: EPDM Rubber
• Product Voltage: 1 kV
• Relaxed Tube Length: 12 in
• Relaxed Tube Length Metric : 304.8 mm
• Splice Type: Cold Shrink
• Voltage Application: Low Voltage

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Power Distribution Systems
• Industrial Electrical Installations
• Commercial Building Infrastructure
• Utility Substation Applications
• Cable Splice Protection
• Terminal Lug Insulation
• Conduit Connection Sealing

Why Choose 3M Quality?

3M Cold Shrink Insulators provide proven reliability with USA manufacturing standards and EPDM rubber construction designed for long-term performance. The chloride-free and sulfur-free formulation ensures compatibility with electrical systems while delivering consistent protection across extreme temperature ranges from -40�F to 194�F.