

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The HUBBELL WIRING DEVICE-KELLEMS HBL2523 is an industrial-grade locking connector rated for 20 amps at 277/480 volts across a 4-pole, 5-wire configuration. Built to the NEMA L22-20R standard, this self-grounding connector is designed for three-phase power distribution in commercial and industrial environments. The nylon housing resists impact and corrosion, making it suitable for demanding jobsite and facility conditions. An IP20 ingress protection rating guards internal contacts against solid object intrusion. Licensed electricians and industrial maintenance technicians install this connector as part of portable power assemblies and cord-and-plug connected equipment systems.
The HBL2523 fits applications where three-phase 277/480-volt service is required through a locking cord connection. Typical installations include industrial machinery feeds, portable distribution equipment, and generator output circuits in commercial or light-industrial settings. The L22-20R configuration is specific to three-phase wye systems operating at this voltage class. The connector accepts cord diameters ranging from 0.35 inches to 1.15 inches, covering a broad range of SOOW and similar multi-conductor cable types commonly used in industrial wiring assemblies.
Designed as an industrial-grade locking connector for use with NEMA L22-20R mating inlets and receptacles in three-phase 277/480-volt cord-and-plug connected equipment assemblies.
Installation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit before disassembling any cord-and-plug connection or terminating conductors. Verify cord diameter falls within the 0.35-inch to 1.15-inch range before assembly to ensure a proper strain-relief fit. Do not exceed the 20A or 277/480V ratings of the connector under any operating condition.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!