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Black and white nylon locking connector with screw terminals

Hubbell Incorporated

Hubbell Incorporated HBL2523 Locking Connector L22-20R 20 A 277/480V AC 4P4W

SKU CH-J5QD-EPY1F

A 20 A, 277/480 V AC locking connector with a straight nylon body, screw terminals and a 0.35–1.15 in cable range

  • Product typeLocking Devices
  • Product colorBlack/White
  • NEMA L22-20R configuration ensures correct three-phase 277/480 V AC mating
  • 20 A rating supports standard industrial 4-pole 4-wire loads
  • Nylon housing provides impact resistance for demanding environments
  • Accepts cable diameters from 0.35 in to 1.15 in for flexible installation
  • Screw-terminal wiring enables secure field termination without special tools

Hubbell HBL2523 Locking Connector

The Hubbell HBL2523 is a straight-body locking connector rated for 20 A at 277/480 V AC three-phase power. It suits electricians and maintenance crews wiring industrial equipment that requires a secure NEMA L22-20R connection. The nylon housing resists impact in demanding environments.

NEMA L22-20R configuration

This connector provides a four-pole, four-wire layout matching the NEMA L22-20R standard. The brass contacts accept conductors through screw terminals for cables between .35 in and 1.15 in diameter. No other pin-out or voltage rating is supported by this device.

Screw-terminal wiring in IP20 enclosures

The screw-terminal design allows field termination without specialised crimp tools inside panels rated IP20 or better. It frees installers from proprietary plug systems while the shroud-less body keeps the profile compact for tight wiring gutters. No cap or cover is included.

How it compares

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

Price $69.99
Pricier than about 65% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Model nameHBL2523
Product typeLocking Devices
Product colorBlack/White

Questions about this item

What does the 20 A rating mean for a three-phase 277/480 V AC circuit?

It indicates the connector is rated to carry up to 20 amps per phase on a three-phase 277/480 V AC supply using the L22-20R configuration.

How does the L22-20R NEMA configuration limit the voltage and phase arrangement?

The L22-20R locking interface is defined for three-phase 277/480 V AC with four poles and four wires, preventing mismatched voltage or phase connections.

What cable diameters can the screw terminals accept for a secure fit?

The connector accepts cables from 0.35 in to 1.15 in outer diameter, secured by screw terminals in a nylon housing.

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