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Ten yellow heat-shrink butt splice connectors, 1.68 in long, polyolefin insulation

Velvac

Velvac 35430 Butt Splice Wire Connector 10 AWG Yellow Polyolefin

SKU CH-SN6G-Q2VK9

Heat-shrink butt splice accepts 16-10 AWG wire, crimps to copper barrel and seals to 194 °F

  • TypeElectrical Connectors
  • Heat-shrink polyolefin seals out moisture for reliable splices
  • Brazed-seam copper barrel resists pull-out on 10 AWG wire
  • UL approved and RoHS compliant for code-compliant installs
  • Operates from -67 °F to 194 °F in harsh environments
  • Ten connectors per pack simplifies multi-wire jobs

10 AWG Butt Splice Connector

The Velvac 35430 is a heat-shrink butt splice designed for crimp termination of 16 to 10 AWG copper wire. Its polyolefin insulation shrinks to seal the joint against moisture and abrasion. The connector is UL approved and RoHS compliant for automotive and industrial wiring tasks.

Upgrade from non-sealed crimp terminals

Standard uninsulated or vinyl-insulated butt connectors leave the crimp exposed to corrosion and vibration fatigue. This heat-shrink version adds an environmental seal that meets a -67 °F to 194 °F operating range and 600 V rating. The jump is worth it when the harness runs through engine bays, undercarriages or outdoor equipment.

Fits 16–10 AWG copper conductors

The brazed-seam barrel accepts wires from 16 AWG up to 10 AWG with an inside diameter of .094 in to .137 in. Overall length is 1.68 in, so the splice sits neatly inside loom or conduit. A crimp tool matched to the wire gauge and a heat source complete the installation. The pack contains ten connectors for multiple repairs.

Highlights

  • Heat-shrink polyolefin seals out moisture for reliable splices
  • Brazed-seam copper barrel resists pull-out on 10 AWG wire
  • UL approved and RoHS compliant for code-compliant installs
  • Operates from -67 °F to 194 °F in harsh environments
  • Ten connectors per pack simplifies multi-wire jobs

Specifications

BrandVELVAC
TypeElectrical Connectors

Questions about this item

What wire gauges does the Velvac 35430 butt splice accept?

It accepts 16 AWG to 10 AWG wire, with barrel inside diameters of .094 in and .137 in to match that range.

How do you install the heat-shrink butt splice so the seal actually works?

Strip the wire, crimp the copper barrel with a proper crimp tool, then apply heat evenly until the polyolefin sleeve shrinks and the adhesive flows — skipping the heat step leaves the joint unsealed.

When should the connector be replaced after installation?

Replace it if the yellow insulation shows cracking, discoloration, or if the crimp feels loose; the polyolefin sleeve is rated from -67 °F to 194 °F and 600 V, so damage outside that envelope means the seal is compromised.

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