3M QSLV-M(2-500) Low Voltage Cold Shrink Insulators
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Manufacturer 3M
Mfg Catalog # QSLV-M2-500
NorthEast Part # 378917


3M™ QSLV-M Series Cold Shrink Quick Splice Kit offers quick insulation and protection for direct bury, secondary voltage insulated, non-shielded, aluminum/copper conductor cable splices rated up to 1 kV. The tubular sleeve must be overwrapped with vinyl electrical tape/self-fusing silicone rubber electrical tape 70 in aerial applications.

The 3M™ Cold Shrink Low Voltage QSLV-M provides quick, reliable insulation and protection for secondary low-voltage splices. The 8-2/0 tube fits 2 AWG to 500 kcmil. Mastic rings at each end provide remarkably wide wire range. In fact, the two QSLV-M tubes together offer 3 times the wire range on traditional cold applied products. After installation, a solid internal core remains inside to protect against impact damage. Installation is easy with no torch or tools required. It provides reliable sealing and long-term durability. , even after years of aging and exposure. QSLV-M tubes are designed to resist fungus, acids and alkalies, and have passed testing for ANSI C119.1. It can be used for direct bury or submersible applications on either aluminum or copper splices.

  • Rubber sleeve with sealing mastic provides a water-resistant sealing
  • Factory-expanded for easy installation
  • For direct-bury, secondary low-voltage, non-shielded cable splices
  • 0.4 to 1.6-in O.D. insulation
  • Accommodates wire size of 2 AWG to 500 kcmil (Al) and 2 AWG to 1000 kcmil (Cu)
  • Rated for up to 1 kV applications
  • Splices both aluminum and copper conductors
  • RoHS 2011/65/EU Compliant and ANSI Certified
  • 10 kits/case


  • 3M ID: 80611438377
  • Cable Type: Power Cable
  • Conductor Material: Aluminum, Copper
  • Conductor Sizes: 1 AWG, 1/0 AWG, 2 AWG, 2/0 AWG, 250 kcmil, 3/0 AWG, 300 kcmil, 350 kcmil, 4/0 AWG, 400 kcmil, 500 kcmil
  • Insulation O.D. Range: 0.40-1.60 in
  • Insulation O.D. Range (Metric): 10-41 mm
  • Maximum Connector Length: 4.25 in
  • Maximum Connector Length (metric): 108 mm
  • Model: Cold Shrink
  • Number of Conductors: 3
  • Product Type: Splice
  • RoHS 2011/65/EU Compliant: Yes
  • RoHS EU Comments: RoHS 2011/65/EU compliant without exemption
  • Shielding Type: Non-shielded
  • Splice Type: Cold Shrink
  • Trademark: 3M
  • Voltage: 1 kV

Legal Disclaimer

  • Manufacturing Origin: USA
  • The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
  • Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.


UPC 05112857237
Product Description 3M Cold Shrink Quick Splice Low Voltage QSLV-M are open-ended tubular rubber sleeves with sealing mastic on each end which are factory expanded and assembled onto a unique three-core system. Two cores, one on each end, are removed after the QSLV-M insulator has been centered over an inline connector, allowing the ends of the tube to shrink and form a water-resistant seal. The third, center segment of the core remains inside the cold shrink tube, acting as a support structure. Sizing of the cores and tube, along with the sealing mastic on each end, is designed to accommodate the variance in connectors and connector crimping techniques and final dimensions without degrading the seal and insulating characteristics of the EPDM rubber tube, while also making core removal easy. Two diameter sizes will cover a range of 1 kV or less cable from 8 AWG through 1000 kcmil for copper and 8 AWG through 500 kcmil for aluminum conductors with crimped connectors. In aerial applications where intense UV radiation will be common and visual inspection is not possible, it is recommended to overwrap the tubing with Scotch® Super 33+ Vinyl Electrical Tape or Scotch® Self-Fusing Silicone Rubber Electrical Tape 70. Note: Insulator may be used on cable sizes outside of the recommended range provided both cables are within the insulation O.D. range, and the connector meets the dimensional requirements shown in the table.
GTiN 00051128572375
Size 1 AWG; 1/0 AWG; 2 AWG; 2/0 AWG; 250 kcmil; 3/0 AWG; 300 kcmil; 350 kcmil; 4/0 AWG; 400 kcmil; 500 kcmil
Type Cold Shrink Splice
Material Aluminum; Copper
Number of Conductors 3
Cable Type Power Cable
Family Brand Name 3M
Voltage 1 kV
Splice Type Cold Shrink
Product Type Splice
Conductor Size 400 MCM

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