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Gray twist-on wire connectors with winged polypropylene bodies in a pack of 50

Ideal

Ideal 30-342 Twist-On Wire Connector Gray 18-8 AWG PK50

SKU CH-R4QW-F8HR4

Twist-on wire connectors join 18-8 AWG copper conductors, rated 600 V and 221 °F, with a winged polypropylene shell and UL 94 V-2 flammability rating

  • Overall length4.7
  • Product typeTwist-On
  • Connects 18 to 8 AWG copper wires securely
  • Winged twist-on design enables fast tool-free installation
  • UL listed and CSA certified for 600 V circuits
  • Polypropylene shell rated UL 94 V-2 flame resistance
  • Pack of 50 connectors covers multiple wiring jobs

Ideal 30-342 Twist-On Connector

The Ideal 30-342 is a gray twist-on wire connector designed for copper conductors ranging from 18 to 8 AWG. It suits electricians and technicians making splices in residential or light commercial wiring up to 600 V.

Build quality and daily use

The winged polypropylene shell provides grip for hand tightening while the zinc-plated steel spring holds up to six conductors securely. Rated to 221 °F with a UL 94 V-2 flammability rating, it meets CE, CSA and UL listings for code-compliant installations.

Upgrade context

This connector replaces loose tape joints or undersized wire nuts that cannot handle the maximum combination of two 8 AWG plus two 12 AWG wires. The step up is worth it when a job demands the full 600 V rating and a listed connector for inspection approval.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 68% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameIdeal
Product typeTwist-On

Questions about this item

What voltage does the 600 V rating on these gray twist-on connectors cap in practice?

The 600 V rating is the maximum voltage the connector is listed for; do not exceed it in any circuit.

What box depth or clearance do these 4.700-length wing connectors need to fit?

They measure 4.700 in overall length, so allow at least that much straight clearance behind the wire entry.

How are the 30-342 connectors installed, and what step do people get wrong?

Strip each copper conductor, align the wires, then twist the wing connector clockwise until tight; the common error is skipping the final tug test to confirm a solid grip.

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