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

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

Explosionproof, Dust-Ignitionproof

NEC:

Class I, Division 1, Groups C, D
Class I, Division 2, Group B
Class I, Zone 1, Group IIB
Class I, Zone 2, Group IIB + H2
Class II, Division 1 and 2, Groups F, G

NEC:

Class III
NEMA 3, 3R, 3RX, 4X, 7CD, 9FG

Applications

• Locations where receptacles are used with stationary or
portable electrically operated devices such as:

— Lighting systems
— Conveyors
— Heaters
— Motor-generator sets
— Air conditioners
— Compressors
— Pumps

• Locations where damp or corrosive conditions exist.

Features

• Receptacle covers are UL Listed when used with Contender

series mounting boxes, and UL Classied when used with

Crouse-Hinds

• ECP plug ts any standard non-explosionproof receptacle

(NEMA 5-20R, or 6-20R) as well as U-Line™ explosionproof
receptacles.

• Insulators provide superior dielectric and mechanical strength
and lowest arc tracking.

• Dead front design: receptacle is not energized until plug is fully
inserted and switch is engaged.

™ 

EDS series mounting boxes.

Standard Materials

• Receptacle covers: copperfree (4/10 of 1% max.) aluminum

• Mounting boxes: malleable iron

• Insulating blocks: berglass reinforced thermoset polyester

Standard Finishes

• Malleable iron mounting boxes: triple-coat– (1) zinc electroplate,
(2) chromate and (3) epoxy powder coat

• Receptacle covers and aluminum mounting boxes: epoxy
powder coat

Options

• Copperfree (4/10 of 1% max.) aluminum receptacle cover and
mounting box. Add sufx –SA.

™

NEC Certifications and Compliances

• UL Listed: E10784

• UL Standard: UL 1203, UL 1010, UL 894

Related Products

• U-Line™ Contender™ receptacles only available for use in
combination with 1- and 2-gang EDS series mounting boxes
incorporating such devices as pilot lights, switches and push
buttons. See Controls Section.

PLUGS AND RECEPTACLES: NEC/CEC HAZARDOUS LOCATION

Illustrated Features

Mounting lugs.

NEMA 3RX spring-loaded
cover seats against
neoprene gasket.

Malleable iron mounting box
with triple-coat finish standard.
Optional aluminum mounting
boxes available.

 NEMA 3RX when the spring-loaded cover is installed and closed. NEMA 4X when the screw cover is installed and fully engaged.
Note: Covers are UL Classified to mount on Crouse-Hinds® EDS mounting boxes. Appleton “ENR” Series receptacles are UL Classified for use with Crouse­Hinds® ENP Series plugs.
 Crouse-Hinds, EDS and ENP are registered trademarks of Cooper Crouse-Hinds.

Stainless steel slotted hex
head mounting screws.

U-Line™ NEMA 4X corrosion

resistance screw cover kit

available: ULINEREC4XKIT.

399

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

Explosionproof, Dust-Ignitionproof

NEC:

Class I, Division 1, Groups C, D
Class I, Division 2, Group B
Class I, Zone 1, Group IIB
Class I, Zone 2, Group IIB + H2
Class II, Division 1 and 2, Groups F, G

NEC:

Class III
NEMA 3, 3R, 3RX, 4X, 7CD, 9FG

Illustrated Features

Spring-loaded cover keeps dust out of receptacle when plug is not
in use, which may be rotated 180° or completely removed. Stainless
steel cover spring-completely enclosed for protection from
corrosive environments.

Factory sealed receptacle/switch interior. Switch is an integral
part of receptacle interior, contained in an aluminum sleeve.
Protective xylan coating on inside of sleeve provides smooth
”rotating” action of internal switch, which is activated by rotating
plug in receptacle. Entire aluminum sleeve is sealed at both ends
with neoprene O-rings to protect receptacle/switch interior against
moisture.

ECP Interchanger plug fits ordinary location receptacles (NEMA
5-20R and NEMA 6-20R) and explosionproof U-Line™ receptacle
as well competitors comparable NEMA blade configured
receptacles.

A twist of the plug produces audible ”click” to indicate fast make
and break of built-in switch contacts. Twisting plug locks it in
place—cannot be accidentally pulled out.

With plug in use, neoprene
gasket in throat of receptacle
”seals” around plug keeping
out dirt, water, dust and other
foreign matter.

For safety... Ordinary location
plug will NOT activate
explosionproof U-Line™
receptacle.

With plug not in use, spring-
loaded cover seats against
neoprene gasket to seal
receptacle from corrosive
atmospheres.

Plug mechanical cable clamps
on the plug prevent strain on
cables and meet or exceed UL
150 lb. strain relief pull-out test
for classified locations.

Special neoprene watertight plug bushing accommodates
flexible cord ranging from .538” to .639” in diameter.

PLUGS AND RECEPTACLES: NEC/CEC HAZARDOUS LOCATION

Solderless lugs—all terminals are pressure type to facilitate wiring.

Longer plug housing for better gripping and easier plug insertion

and withdrawal.

400