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Black insulated multitap connector, 4.88 in long, two inline ports, hex head

Blackburn

Blackburn AMTSR350 350 kcmil Insulated Multitap Connector 4.88 In

SKU CH-7P2J-XXCGD

An insulated multitap connector joining two conductors up to 350 kcmil at 600 V with a 5/16 in hex drive

  • Type2-Holes, In Line
  • Connects two conductors up to 350 kcmil
  • Rated 600 V for heavy-duty circuits
  • Withstands 194 °F continuous operating temperature
  • CSA 6591 and UL E9809 certified
  • PVC-insulated aluminium body, 4.88 in long

350 kcmil Insulated Multitap Connector

The Blackburn AMTSR350 is an inline insulated multitap connector rated for up to 350 kcmil stranded copper conductors. It accepts aluminum, copper and copper-clad aluminum wire in a two-port configuration. The body is aluminum with PVC insulation and meets CSA 6591 and UL E9809 standards. It is suited for industrial and automotive electrical distribution up to 600 volts.

Hex-head installation with standard tooling

Each port uses a 5/16 inch hex set screw for conductor retention, allowing installation with common hex drivers or wrenches. The inline two-hole layout keeps the joint compact for panel or tray routing. Installers must strip insulation to the correct length and torque the screws evenly to avoid loose connections. Over-torquing can damage the aluminum body or strip the hex socket.

Dual-port capacity for parallel feeds

The connector handles two conductors from 6 AWG up to 350 kcmil, providing a single junction point for parallel feeders or tap-offs. At the maximum 350 kcmil size the connector reaches its rated ampacity and 600 volt limit with minimal headroom for future up-sizing. The 194 degree Fahrenheit temperature rating defines the thermal ceiling for continuous load. Applications requiring more than two ports or larger conductors need a different connector body.

Highlights

  • Connects two conductors up to 350 kcmil
  • Rated 600 V for heavy-duty circuits
  • Withstands 194 °F continuous operating temperature
  • CSA 6591 and UL E9809 certified
  • PVC-insulated aluminium body, 4.88 in long

Specifications

BrandBlackburn
Type2-Holes, In Line

Questions about this item

How can I verify the Blackburn AMTSR350 connector is working correctly after installation?

Confirm each conductor is fully seated in the two inline ports and tighten the 5/16 in hex set screws until firm; the connection should show no movement when gently tugged and the black PVC insulation must remain intact with no conductor exposure.

What comes with the Blackburn AMTSR350 and what must I purchase separately?

The connector body with two inline ports and PVC insulation is supplied; you must provide stranded copper or aluminum conductors between 6 AWG and 350 kcmil and a 5/16 in hex driver for the set screws.

Which version of the Blackburn AMTSR350 should I select for my wire size?

This single model accepts stranded copper from 6 AWG up to 350 kcmil and aluminum or copper-clad aluminum conductors in the same range, so choose it whenever your conductors fall within those limits.

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