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Yellow heat-shrink butt splice connectors, 10-pack

Velvac

Velvac 37430 Butt Splice Connector 10 AWG Yellow Heat Shrink 10 Pack

SKU CH-JP6N-D28VA

Heat-shrink butt splice connectors accept 12 to 10 AWG wire, crimp with copper barrels and seal to 600 V at 221 °F

  • TypeElectrical Connectors
  • Heat-shrink seal resists moisture and vibration
  • Crimps 10–12 AWG wire for secure joints
  • Rated 600 V and 221 °F for demanding circuits
  • UL listed and CSA certified for code compliance
  • Ten connectors per pack for multiple repairs

Velvac 37430 10 AWG Butt Splice Connector

These crimp connectors join two wires from 12 AWG up to 10 AWG using a heat-shrink sleeve that seals the joint. The yellow insulation identifies the 10 AWG maximum size at a glance. Rated for 600 V and 221 °F, they meet UL and CSA standards for automotive and industrial wiring repairs. Supplied in a pack of ten for multiple splices.

Check wire gauge and crimp tool before ordering

Ensure the conductors you are joining fall within the 12 AWG to 10 AWG range marked on the barrel. A proper ratchet crimp tool for insulated terminals is required to achieve a gas-tight connection before heating the sleeve. Verify that the circuit voltage does not exceed 600 V and that the operating temperature stays below 221 °F. The connectors are RoHS compliant for regulated environments.

Heat-shrink seal protects the joint in harsh

After crimping, apply heat to shrink the nylon tubing and activate the adhesive liner, creating a moisture-resistant barrier around the copper barrel. The 1.75 in overall length fits inside standard conduit and junction boxes without extra clearance. Overlapped seam construction adds mechanical strength for vibration-prone vehicle chassis. Ten pieces allow several repairs or a small harness build without reordering.

Highlights

  • Heat-shrink seal resists moisture and vibration
  • Crimps 10–12 AWG wire for secure joints
  • Rated 600 V and 221 °F for demanding circuits
  • UL listed and CSA certified for code compliance
  • Ten connectors per pack for multiple repairs

Specifications

BrandVELVAC
TypeElectrical Connectors

Questions about this item

Does the pack of 10 yellow butt splice connectors include any crimp tool or heat gun, or must I buy those separately?

The package contains only the 10 connectors; a suitable crimp tool and heat gun for the heat-shrink insulation are not included and must be purchased separately.

Should I choose this 10 AWG yellow version or a different size for a 12 AWG wire?

This yellow connector accepts wires from 12 AWG up to 10 AWG, so it covers 12 AWG; select a smaller gauge connector only if your wire is thinner than 12 AWG.

What does the 600 V rating mean when I install these splices in a 12 V automotive harness?

The 600 V rating is the maximum voltage the insulation can withstand; in a 12 V system it simply provides a very large safety margin.

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