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Black straight blade plug with double set screw terminals, thermoplastic elastomer body, brass conductors, 400A 600V rating

Hubbell Incorporated

Hubbell Incorporated HBL400MBK straight blade plug black 400A 600V

SKU CH-BK2Q-PYBS4

400 A straight-blade plug rated 600 V AC with double set-screw terminals for 2/0 to 4/0 cable

  • ColorBlack
  • MaterialHAWA
  • TypePlug Adapters
  • NEMA 12K, 3R and 4X ratings suit harsh environments
  • 400 A AC/DC capacity handles heavy-duty loads
  • Double set-screw terminals secure cables from 2/0 to 4/0
  • Thermoplastic elastomer body resists impact and chemicals
  • UL and cUL listings confirm safety compliance

High-amperage single-pole plug

This Hubbell HBL400MBK is a straight-blade male plug rated for 400 A at 600 V AC and 250 V DC. It accepts conductor sizes from 2/0 to 4/0 and terminates with a double set-screw connection. The body is moulded from black thermoplastic elastomer with brass contacts.

Suited for heavy-duty power distribution

Electricians wiring temporary service, generator hook-ups or industrial machinery will find the 400 A capacity and NEMA 12K, 3R and 4X ratings appropriate. Installers who need a female connector, a lower amperage device or a different voltage class should select another product.

400 A continuous current rating

The single-pole taper-nose design is built to carry 400 A continuously when used with correctly sized cable and proper torque on the set screws. This rating is the primary factor in determining whether the plug matches the circuit requirements.

Highlights

  • NEMA 12K, 3R and 4X ratings suit harsh environments
  • 400 A AC/DC capacity handles heavy-duty loads
  • Double set-screw terminals secure cables from 2/0 to 4/0
  • Thermoplastic elastomer body resists impact and chemicals
  • UL and cUL listings confirm safety compliance

Specifications

BrandHubbell Wiring Device-Kellems
ColorBlack
MaterialHAWA
TypePlug Adapters

Questions about this item

What does the 400 A rating mean when the plug is installed in a circuit?

The 400 A rating shows the maximum continuous current the plug can carry when mated with a matching connector and cable sized for that load.

How does the double set screw terminal affect the connection?

The double set screw terminal clamps each conductor at two points, giving a secure grip on cables from 2/0 to 4/0 without soldering or crimping.

What cable diameters will fit through the housing?

The housing accepts single pole cables ranging from 2/0 to 4/0, matching the terminal’s clamping range.

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