Hubbell HBL2441 Locking Plug 20A 120/208V L18-20P

Product Description

The HUBBELL HBL2441 is a polarized Twist-Lock locking plug rated for 20 amperes at 120/208 volts AC star 3-phase service. It features a 4-pole, 4-wire, non-grounding configuration in the NEMA L18-20P pattern. The body is molded from impact-resistant, chemical-resistant nylon in a black and white finish. Brass blades provide reliable conductivity and long service life. A funnel-shaped wire entry simplifies termination, and the integral dust shield protects the wiring chamber from contamination during service. This plug is installed by licensed electricians on 3-phase power distribution circuits in commercial and industrial applications.

The HBL2441 is suited for 3-phase power drops in commercial buildings, industrial facilities, and institutional environments where L18-20P receptacles are specified. The non-grounding 4-wire configuration is appropriate for legacy or isolated-ground circuits designed around this standard. The superior cord grip design protects terminations from excess strain, making it a reliable choice for portable equipment connections and panel cord drops that see frequent handling. Compatible cord sizes range from 0.35 to 1.15 inches in diameter, accommodating a broad range of cable gauges commonly used on 20-amp 3-phase circuits.

Key Features

• L18-20P configuration: 4-pole, 4-wire, non-grounding, 20A at 120/208V AC star 3-phase
• Impact-resistant and chemical-resistant nylon body for demanding service environments
• Brass blades for dependable conductivity and corrosion resistance
• Funnel-shaped wire entry simplifies conductor insertion during termination
• Superior cord grip design reduces strain on terminations
• Integral dust shield keeps the wiring chamber clean between uses
• IP20 enclosure rating; UL 498 and CSA C22.2 listed

Compatibility

Designed for use with NEMA L18-20P receptacles on 120/208V AC star 3-phase, 20-amp circuits. This part replaces Hubbell catalog number 2441 HBL Insulgrip Twist-Lock plug.

Installation Notes

Installation should 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 before opening the plug body or making terminations. Confirm cord diameter falls within the 0.35 to 1.15 inch grip range before assembly to ensure proper strain relief. Do not exceed the 20-amp current rating or the rated voltage of the device.

Technical Specifications

• Configuration: L18-20P
• Voltage Rating: 120/208 volts AC star 3-phase
• Current Rating: 20 amps
• Number of Poles: 4
• Number of Wires: 4
• Ground Type: Non-Grounding
• Type: Polarized
• Material: Nylon
• Blade Material: Brass
• Color: Black/White
• Cord Size Range: 0.35 to 1.15 inches
• Enclosure Rating: IP20
• Temperature Rating: -40 to 60 degrees C
• Approvals: UL 498, CSA C22.2
• Package Dimensions: 4.2 inches L x 2.4 inches W x 2.5 inches H
• Package Weight: 0.35 pounds
• Country of Origin: PR

Standard Information

• Brand: HUBBELL
• Manufacturer Part Number: HBL2441