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Red insulated male disconnect terminals with heat shrink tubing in clear bag

3M

3M MNHU18-250DMIX Male Disconnect Red Heat Shrink PK25

SKU CH-755M-CZZ5X

Red heat-shrink male disconnect terminals accept 22-18 AWG wire, rated 600 V and 221 °F, with 0.25 in tabs in a 25-piece pack

  • TypeElectrical Connectors
  • Reliable copper contacts ensure strong conductivity
  • Heat-shrink insulation gives full environmental protection
  • Fits 22 to 18 AWG wires for versatile use
  • Rated 600 V and 221 °F for demanding circuits
  • Pack of 25 connectors ready for volume jobs

3M Male Disconnect 25-Pack

These 3M male disconnect terminals accept 18 to 22 AWG wire and feature red heat-shrink insulation for a sealed crimp connection. The pack contains 25 pieces suited for automotive and industrial wiring tasks where moisture resistance matters. Each terminal is UL listed, CSA certified and RoHS compliant for code-compliant installations.

Heat-Shrink Crimp Terminals

The butted-seam barrel with 0.065 inch inside diameter fits the stated wire range and the 0.25 inch by 0.032 inch tab mates with standard female disconnects. Full-coverage heat shrink seals the joint when heated, removing the need for separate tubing or tape. Rated to 600 volts and 221 degrees F, the copper contacts handle typical low-voltage power and signal circuits.

Upgrade from Vinyl-Insulated Disconnects

Builders replacing vinyl-insulated male disconnects gain a moisture-tight seal and strain relief in one step. The jump is worth it when the harness sees vibration, splash or temperature cycling that can crack or loosen standard insulation. Users needing non-insulated terminals or larger wire gauges should select a different product.

Highlights

  • Reliable copper contacts ensure strong conductivity
  • Heat-shrink insulation gives full environmental protection
  • Fits 22 to 18 AWG wires for versatile use
  • Rated 600 V and 221 °F for demanding circuits
  • Pack of 25 connectors ready for volume jobs

Specifications

Brand3M
TypeElectrical Connectors

Questions about this item

What is the highest continuous temperature the insulation can withstand?

The heat-shrink insulation is rated for a maximum operating temperature of 221 degrees Fahrenheit.

How much heat does the crimp joint generate during extended operation?

The copper contact and butted-seam barrel are designed for low resistance at up to 600 volts, keeping heat rise minimal when crimped correctly to 18-22 AWG wire.

Which wire gauges and crimp tool are required for a proper connection?

Use stranded wire between 22 and 18 AWG with a matching crimp die for the .065-inch barrel inside diameter.

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