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Black nylon flush-mount twist-lock receptacle L17-30R 30A 600VAC

Hubbell Incorporated

Hubbell Incorporated HBL2740 30A Twist-Lock Receptacle 3P 4W 600VAC L17-30R BK

SKU CH-TCPN-MJK8D

Three-pole, four-wire locking receptacle rated 30 A at 600 V AC with screw-terminal wiring

  • Product typeLocking Devices
  • Product colorBlack
  • 30 A three-phase power for heavy-duty equipment
  • L17-30R NEMA locking configuration prevents accidental disconnects
  • 600 V AC rating supports industrial voltage requirements
  • Nylon housing resists impact and chemical exposure
  • Flush-mount design fits standard electrical boxes

30 A Twist-Lock Receptacle

The Hubbell HBL2740 is a straight-orientation locking receptacle rated for 30 A at 600 V AC. It uses the NEMA L17-30R configuration with three poles and four wires for three-phase power. The black nylon housing mounts flush and accepts screw-terminal connections. Industrial electricians and facility managers specify this device for secure, high-amperage branch circuits.

NEMA 1 enclosure limit

The receptacle carries a NEMA 1 enclosure rating, meaning it is intended for indoor use where it is protected from falling dirt but not from water, oil or corrosive agents. The non-flanged, non-shrouded body has no integral cover, so the installer must provide a suitable weatherproof box or cover plate when the location demands it. Outdoor or wash-down environments require a higher-rated enclosure.

L17-30R configuration decides fit

The single specification that determines compatibility is the NEMA L17-30R configuration, which defines a 30 A, 600 V AC, three-pole, four-wire, three-phase locking interface. Only plugs built to the same L17-30P standard will engage correctly. Buyers who need a different voltage, phase count or amperage must select a receptacle with the matching NEMA code.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $50.99
Pricier than about 56% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameHBL2740
Product typeLocking Devices
Product colorBlack

Questions about this item

Which NEMA configuration should I pick for a three-phase 600 V circuit?

Choose the L17-30R configuration; it is rated for 30 A, three-phase, 600 V AC and uses a 3-pole, 4-wire twist-lock design.

What does the 30 A rating mean when the receptacle is installed in a panel?

It means the device can continuously carry up to 30 amperes per pole at 600 V AC in a three-phase circuit when wired with properly sized conductors.

How does the L17-30R standard limit the voltage and wiring in practice?

The L17-30R standard caps the receptacle at 600 V AC, requires three poles and four wires, and only accepts matching L17-30P plugs for a secure twist-lock connection.

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