Locking Plug, L21-30P, 30 A, 120/208V AC, Three Phase, 4 Pole, Spring Clamp Terminals, Black, White

The HUBBELL - Locking Plug is a three-phase industrial locking plug intended for use in industrial environments requiring locking plug connections. It features spring clamp terminals enable wire termination without the use of screwdrivers or torque wrenches, and its funnel-shaped wire entry assists with installation. The plug includes a cord grip design helps reduce strain on terminations to protect terminations from excess strain and is constructed with materials rated as resistant to chemicals and impacts.

Key Features of the HUBBELL - Locking Plug:

• Blade Material: Copper alloy blades provide reliable conductivity.


• Housing Material: Nylon housing offers durability and resistance to chemicals and impacts.


• Wire Connection Type: Spring clamp terminals support tool-free wiring.


• Cable Diameter Range: Accepts cable diameters from 0.35 in to 1.15 in.


• Wire Size Compatibility: Suitable for wire sizes ranging from 14 AWG to 8 AWG.


• Current/Voltage Rating: Rated for 30 A at 120/208V AC, three-phase operation.


• Number of Poles/Wires/Blades: Features four poles, five wires, and five blades; polarized design supports proper alignment enhances connection integrity.


• Operating Temperature Range: Designed for use between -40°C and 75°C maximum operating temperature.


• Grounded Design: Includes grounding feature for added circuit protection requirements.


• IP Rating & Flammability Standard: IP20 rated with UL 94 HB flammability classification; certified to CSA C22.2 No.42, Federal Specifications W-C-596, listed to UL 498 standards.