Watertight Locking Connector, L21-20R, 20 A, 120/208V AC, Three Phase, 4 Pole, Screw Terminals

The HUBBELL 20A Watertight Locking Connector (L21-20R) is a shrouded, industrial/commercial-grade connector suitable for use in industrial and commercial settings. It features a housing that is rated as watertight and impact resistant; includes an environmental seal that protects the connection during use. The device accommodates cord sizes from 0.350 to 1.150 inches and includes a closure cap for protection when not connected.

Key Features of the HUBBELL 20A Watertight Locking Connector:

• Current/Voltage Rating: Rated for 20 A at 120/208V AC, three-phase operation


• NEMA Configuration: L21-20R, with four poles and five wires


• Enclosure Ratings: Meets NEMA Type 12, 4, and 4X; IP66 rated for moisture resistance


• Material Construction: Impact modified PBT housing with Valox body; brass contacts; thermoplastic insulation


• Cord Accommodation: Accepts cable diameters from 0.35 in to 1.15 in; maximum wire size of 8 AWG, minimum wire size of 16 AWG


• Operating Temperature Range: -40°C to +75°C


• Screw Terminals: Standard wiring style using stainless steel screws


• Resistance Properties: Rated as watertight, moisture resistant, and impact resistant; UL94 V-0 flammability rating


• Certifications: CSA Certified Type 4/4X/12; UL Listed standards compliance