Hubbell HBL2340 Locking Receptacle 20A 480V L8-20R

Product Description

The HUBBELL HBL2340 is a single locking receptacle rated for 20 amps at 480 volts AC, configured to the NEMA L8-20R standard with a 2-pole, 3-wire grounding arrangement. The face is constructed from nylon and the base from glass-reinforced thermoplastic polyester, delivering corrosion resistance in demanding industrial and commercial environments. The all-brass mounting and grounding system provides a lower-resistance ground path and greater corrosion resistance than comparable steel mounting systems. A wire restraint recess accommodates both back and side wiring, reducing the risk of terminal connection loosening over time. Licensed electricians install this device as part of panel, wallbox, or equipment termination work.

The HBL2340 is suited for industrial and commercial electrical installations where twist-lock locking receptacles are required at 480 volt AC circuits. Its flush-mount design fits standard wallboxes, and the L8-20R configuration ensures proper mating with compatible locking plugs. Face color coding by voltage facilitates quick identification and correct device pairing during installation and service. This receptacle replaces catalog number 2340A from the Hubbell Twist-Lock HBL series.

Key Features

• L8-20R configuration: 2-pole, 3-wire grounding, 20 amp, 480 volt AC rating
• Nylon face and glass-reinforced thermoplastic polyester base for corrosion resistance
• All-brass mounting and grounding system for lower ground-path resistance versus steel
• Wire restraint recess supports both back and side wiring, reducing terminal loosening risk
• Face outer diameter of 1.563 inches; flush-mount design for standard wallbox installations
• Voltage-coded face color (black) for quick visual identification and proper device mating
• UL 498 and CSA C22.2 listed; manufactured in the United States

Compatibility

Designed as a direct replacement for Hubbell catalog number 2340A. Compatible with NEMA L8-20R locking plugs. Intended for use in 2-pole, 3-wire grounding applications on 480 volt AC circuits in commercial and industrial settings.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the circuit at the breaker before beginning any wiring work. Both back-wired and side-wired terminal configurations are supported; use the wire restraint recess to secure conductors and prevent terminal loosening. The receptacle is rated for a temperature range of -40 to 60 degrees C and should not be installed in environments exceeding these limits.

Technical Specifications

• Configuration: L8-20R
• Voltage Rating: 480 volts AC
• Current Rating: 20 amps
• Number of Poles: 2
• Number of Wires: 3
• Ground Type: Grounding
• Face Outer Diameter: 1.563 inches
• Mounting: Flush Mount
• Wiring: Back and Side
• Face Material: Nylon
• Base Material: Glass-Reinforced Thermoplastic Polyester
• Contact Material: Brass
• Face Color: Black
• Temperature Rating: -40 to 60 degrees C
• Length: 4.1 inches
• Width: 2.0 inches
• Height: 1.7 inches
• Package Weight: 0.28 pounds
• Approvals: UL 498, CSA C22.2
• Country of Origin: United States

Standard Information

• Brand: HUBBELL
• Manufacturer Part Number: HBL2340