Appleton™ U-Line™ Factory Sealed 20 Amp Plugs and Receptacles

Appleton

Appleton™ U-Line™ Factory Sealed 20 Amp Plugs and Receptacles

Appleton

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.

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
Materials and Finishes
Receptacles, covers, caps and ECP plugs are copperfree (4/10 of 1% max.) aluminum with epoxy powder coat. Mounting box is malleable iron with triple-coat (1) zinc electroplate, (2) chromate and (3) epoxy powder coat finish. Insulating blocks are fiber glass reinforced polyester.

Features

  • Factory sealed, external seals not required in most areas. Arcing is safely confined to receptacle interior
  • Choice of aluminum receptacle with malleable iron mounting box or all malleable iron receptacle and box
  • 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
  • Intermateable with competitor's plugs of like configurations

Documents & Drawings