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Black insulated four-port aluminium connector with hex heads

Blackburn

Blackburn AMTSR500 4-Port Insulated Multitap Connector 4.5 in

SKU CH-16CQ-D55G0

A four-port insulated multitap connector accepting aluminium or copper conductors from 4 AWG to 500 kcmil, rated 600 V and 194 °F, with CSA and UL listings

  • Overall length4.5
  • Product type2-Holes, In Line
  • Handles up to 500 kcmil copper conductors
  • Four ports simplify multi-wire connections
  • Rated for 600 V and 194 °F operation
  • CSA 6591 and UL E9809 listed for code compliance
  • PVC-insulated aluminium body resists corrosion

Product identity

The Blackburn AMTSR500 is a four-port insulated multitap connector rated for 600 V and 194 Degrees F. It accepts stranded copper conductors from 4 AWG up to 500 kcmil as well as aluminum and copper-clad aluminum wires. The PVC-insulated aluminum body carries UL E9809 and CSA 6591 listings.

Upgrade scope

It replaces single-tap lugs or split-bolt joints when a single feeder must serve four branch circuits in a panel or junction box. The jump is worth it when code requires listed insulation and a compact in-line layout instead of taping bare connections.

Capacity limits

Four ports each handle the full 500 kcmil range so heavy service entrances are well within capacity. Headroom ends at the 600 V rating and 194 Degrees F operating ceiling; higher-voltage or higher-temperature applications need different hardware.

How it compares

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

Price $92.99
Pricier than about 83% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand nameBlackburn
Product type2-Holes, In Line

Questions about this item

What is the 5/16 in hex size for on the Blackburn AMTSR500?

The 5/16 in hex size is the head style used to tighten the set screws securing each conductor in the four ports.

How do you install the Blackburn AMTSR500 insulated multitap connector?

Strip each conductor to the proper length, insert fully into the four ports, then tighten each 5/16 in hex set screw until the wire is clamped securely.

What maintenance does the Blackburn AMTSR500 require after installation?

Periodically inspect the PVC insulation for cracks and verify the hex set screws remain tight, especially after thermal cycling up to 194 degrees F.

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