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Ten purple twist-on wire connectors with black wings in a clear bag

Twister Al/Cu (30-1765S) Purple Wire Cap Connector Bag of 10

SKU CH-A7H9-Z6WTK

Purple twist-on wire nuts join aluminum to copper from #18 to #10 AWG with antioxidant filler, UL 486C and CSA C22.2 #188 listed to 600 V, bag of 10

  • Product colorBlack
  • Aluminium-to-copper connections from #18 to #10 AWG
  • Pre-filled antioxidant compound prevents oxidation of aluminium conductors
  • UL 486C listed and CSA C22.2 #188 certified for 600 V
  • High-leverage wings reduce hand strain during installation
  • Live-action spring expands and contracts with wiring for secure hold

AL/CU Wire Connectors 10-Pack

These purple twist-on wire nuts join aluminum and copper conductors in residential retrofit projects. Each connector accepts wire sizes from #18 to #10 AWG and comes pre-filled with antioxidant compound to prevent oxidation. The bag contains ten new connectors rated for up to 600 volts.

UL 486C and CSA C22.2 #188 Certified

The connectors carry dual certification for aluminum-to-copper splices, meeting NEC Section 110-14(b) requirements. A live-action spring expands and contracts with aluminum wiring to maintain grip, while the protective skirt keeps antioxidant filler in place and adds dielectric strength.

For Electricians Retrofitting Aluminum Wiring

Suited for professionals updating older homes where aluminum-to-copper joints are needed. Not for aluminum-to-aluminum connections, high-voltage systems beyond 600V, or installers who prefer reusable push-in connectors.

How it compares

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

Price $54.99
Pricier than about 86% of the 1,040 comparable items (median $13.99).

Specifications

Product
Product colorBlack

Questions about this item

How many wire nuts come in the bag and what wire sizes can they join?

The bag contains 10 purple connectors rated for aluminum-to-copper and copper-to-copper splices from 18 to 10 AWG.

What certifications cover the 600 V rating and NEC compliance?

They are UL-Listed to 486C and CSA-Certified to C22.2 188 for Al/Cu connections up to 600 V, and meet NEC 110-14(b).

Do these connectors need a special tool or torque setting to install?

No, the high-leverage wings and live-action spring are designed for hand twisting without a torque tool.

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