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Red polypropylene displacement connector 558 pack of 100

3M

3M 558 Displacement Connector 22-16AWG PK100

SKU CH-9P6M-VHMQT

Red insulation displacement connector for 22-16 AWG wire, rated 600 V and 221 °F, pack of 100

  • TypeDry Environment
  • Insulation-displacement design speeds wire termination
  • Red FR polypropylene insulator resists heat to 221 °F
  • Handles 22–16 AWG run and tap wires
  • Dual-port connector rated for 600 V operation
  • CSA certified and UL listed for dry environments

3M 558 Displacement Connector

The 3M 558 displacement connector joins solid or stranded wires from 22 to 16 AWG without stripping insulation. Each red polypropylene insulator accepts a run wire and a tap wire in a double U-element design. The pack contains 100 pieces for volume wiring tasks in dry environments.

Sustained-load behaviour

The connector is rated for continuous operation up to 221 degrees F and 600 volts maximum. CSA certification and UL listing confirm compliance with electrical safety standards for the stated temperature and voltage limits. RoHS compliance indicates restricted hazardous substances are absent from the materials.

Thermals noise and power

Polypropylene insulation and dry-environment rating suit indoor panels and junction boxes where heat and moisture are moderate. No fill material is present, so thermal mass is minimal and the connector adds negligible resistance to the circuit. The 0.12 inch maximum insulation diameter ensures a compact fit in standard terminal strips.

Highlights

  • Insulation-displacement design speeds wire termination
  • Red FR polypropylene insulator resists heat to 221 °F
  • Handles 22–16 AWG run and tap wires
  • Dual-port connector rated for 600 V operation
  • CSA certified and UL listed for dry environments

Specifications

Brand3M
TypeDry Environment

Questions about this item

Will the 3M 558 connectors overheat or draw extra power when used continuously at the 600 V rating?

The 3M 558 is a passive displacement connector with no active components, so it generates no heat of its own and draws no power; it is rated to 221 °F maximum operating temperature and 600 V.

Do I need any special crimping tool or strip-length gauge to install these 22-16 AWG displacement connectors?

No special tool is required — the 3M 558 uses insulation-displacement technology that pierces the wire insulation automatically when the cap is closed, accepting 22 to 16 AWG run and tap wires up to 0.12 in. insulation diameter.

Can I use these red 3M 558 connectors on existing 16 AWG wiring that already has brittle insulation?

Yes, the double U-element design accommodates 22 to 16 AWG wires with insulation up to 0.12 in. diameter, and the FR polypropylene insulator is rated for dry-environment use alongside older wiring.

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