APPLETON Factory Sealed 20 Amp Plugs and Receptacles

U-Line™ Factory Sealed 20 Amp Plugs and Receptacles are used with stationary or portable electrically operated devices in hazardous locations. The ECP Interchanger plug is designed with built-in switch contacts which activate when the plug is twisted into the receptacle. This design allows the ECP plug to fit into standard NEMA 5-20R and 6-20R receptacles, but does not allow standard plugs to be used with the receptacle, ensuring that only safe connections can be made in a hazardous location.

Features

Energized receptacle contacts deeply recessed to reduce danger of accidental touching
Unique blade-type, brass contacts exert constant pressure along entire contact surface and provide superior electrical contact.
Insulators provide superior dielectric and mechanical strength and lowest arc tracking
ECP plug fits any standard non-explosionproof receptacle (NEMA 5-20R, or 6-20R) as well as U-Line™ explosionproof receptacles
Choice of malleable iron receptacle and mounting box or aluminum receptacle and mounting box
Ground fault circuit interrupting cover and receptacle combinations available
U-Line™ EFSR-K receptacle covers are UL Classified when used with Killark™ SWB series mounting boxes
Intermateable with competitor’s plugs of like configurations

Specifications

Hazardous Area Classification: Class I, Division 1 Groups B, C, D; Class I, Division 2 Groups B, C, D; Class II, Division 1 and 2 Groups F, G; Class III; NEMA 3, 3R

Amperage: 20

Voltage: 125 Vac or 250 Vac

Number of Poles: 3

Number of Wires: 2

Horsepower Ratings: 1 or 2

Plug Cable Diameter: .538 – .639

Mounting Box Entries: Dead-End or Feed-Thru

Malleable Iron Material and Finish: U-Line™ M series mounting boxes and receptacle covers are malleable iron with a triple coat finish of (1) zinc electroplate (2) chromate and (3) epoxy powder coat

Aluminum Material and Finish: Standard receptacle covers and (optional aluminum mounting boxes) are copperfree (4/10 of 1% max.) aluminum with epoxy powder coat