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Small blue plastic wire connector model 801 with two ports

3M

3M 801 Insulation-Displacement Wire Connector 16 AWG 2 Port Blue

SKU CH-YTTF-7R7SE

Connects 16 AWG to 18 AWG wires using insulation-displacement technology rated for 1,000 V and 221 °F

  • TypeElectrical Connectors
  • Insulation-displacement design connects wires without stripping
  • Single U-element accepts 16 AWG to 18 AWG solid conductors
  • Two-port layout joins run and tap in one step
  • Polypropylene body rated to 221 °F maximum temperature
  • 1,000 V rating covers low-voltage automotive and industrial circuits

Application & User

The 3M 801 connector joins two solid or stranded wires from 18 to 16 AWG without stripping insulation. It suits maintenance technicians, automotive electricians and panel builders who need a quick, reliable splice in control circuits or lighting runs. Buyers needing larger gauge capacity or multi-port blocks will require a different connector style.

Connection Method

The single U-element uses insulation-displacement technology to pierce polypropylene jackets up to 0.145 in diameter. Each port accepts a run and a tap conductor, both within the 18 to 16 AWG range, creating a gas-tight contact in one crimp. No separate stripping, twisting or taping steps are needed, reducing installation time on repetitive wiring tasks.

Build & Mounting

The blue polypropylene body withstands continuous operating temperatures up to 221 Degrees F and is rated for 1,000 V maximum. Its compact, self-contained design requires no special mounting hardware; the connector simply locks onto the prepared wires and can be tucked into junction boxes, cable trays or automotive harnesses where space is limited.

Highlights

  • Insulation-displacement design connects wires without stripping
  • Single U-element accepts 16 AWG to 18 AWG solid conductors
  • Two-port layout joins run and tap in one step
  • Polypropylene body rated to 221 °F maximum temperature
  • 1,000 V rating covers low-voltage automotive and industrial circuits

Specifications

Brand3M
TypeElectrical Connectors

Questions about this item

Will the polypropylene insulation need replacement after extended use at high temperatures?

The polypropylene insulation is rated for a maximum operating temperature of 221 degrees Fahrenheit. It is designed to maintain integrity within this limit without scheduled replacement.

What wire size limit restricts the maximum current I can run through the connector continuously?

The connector accepts a maximum run wire size of 16 AWG and a minimum of 18 AWG. Current capacity is limited by the 16 AWG conductor rating.

Does the connector generate noticeable heat when operating at 1000 volts continuously?

The connector is rated for a maximum voltage of 1000 V and a maximum operating temperature of 221 degrees Fahrenheit. It does not generate heat itself; temperature rise depends on the current carried by the 16 AWG wires.

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