Class II, Div. 1 and 2
Groups F, G
Class III
Type: 3RX
Figure 1A
APPLICATION and FEATURES:
•U-Line®/Contender® U-Line® receptacles and ECP/NC
ugs combination are designed for use where power is to be
pl
supplied to portable electric equipment in locations which
hazardous
lo
cations where damp or corrosive conditions are encountered.
• These
vol
•U-Line® receptacles mount on single or double-gang EF
series boxes. Contender® U-Line® receptacles mount on single
or double-gang EDS series boxes.
• Receptacle is grounde
through the receptacle housing.
INSTALLATION:
due to the presence of flammable vapors and gas
plugs and receptacles are for 15 or 20 ampere use at
ts AC and 20 ampere use at 250 volts AC.
d through and extra pole as well as
P
are
es or
125
D
For Convenience…ECP InterchangerTM Plug fits
ordinary location receptacles (NEMA 5-20 or 15
NEMA 620) and explosion proof U-Line®
Receptacle as well as Killark® “UGR” Series and
Crouse-Hinds® “ENR” Series.
330062-1
Figure 1B
ELECTRICAL WARNING
Electrical power supply must be “OFF” before and during
installation and maintenance. Failure to do so may result
in serious or fatal injuries due to electrocution.
Note: Use minimum #12 copper or copper clad building wire
receptacle back box in desired location. If recept
Mount
1.
al
ready mounted on the box, take out four mounting screws an
rem
ove receptacle. Pull in power source wiring to the box
m
aking sure wire leads extend out of box far enough for prope
con
nections to be made (See Figure 2).
2.Strip insulation from power lead ½”. Connect power leads to
receptacle terminals. Wiring must comply with applicab
codes (See Figure 3).
3. To make connections, loosen wire screws, slide stripped end
wire into contact and tighten wire screw to 20 in-lb torque
of
gure 4).
Fi
4.
Apply a thi
flange.
mounting screws provided to 30 in-lb torque. Receptacle
assembly is now complete and power may now be turned on.
Retain this instruction sheet for future reference.
n film of lubricant (supplied with receptacle) to
Reinstall receptacle on the flange and tighten four
acle is
d
,
r
le local
(See
the
Figure 2
Grounded White Lead
connection for 125V, Black
Lead connection for 250V
Note: For 250V, there are 2 blacks wires, connect
one to black lead and other to indicated white lead
as shown.
Figure 3
Black Lead
Connection
Rev. A 02/18/09 Page 1
CAUTION
The mating flat flange surfaces on both receptacle and
back box are explosion-proof surfaces. Surfaces are not to
be scratched and MUST be clean and flat before assembly.
Gaskets, paint, or any other similar material must NOT be
used in this joint.
OPERATION:
The U-Line®/Contender U-Line® receptacle is dead-front
construction. Electrical connection between it and ECP/NCP plug
is accomplished after plug fully inserts into receptacle and rotate
clockwise.
receptacle door and locate polarization on mating plug pi
Lift
1.
receptacle face. Insert plug straight all the way into rece
and
u
ntil it can not go further (see figure
2. R
otate plug clockwise limit (37º), this closes internal cont
d completes circuit. This also mechanically locks plug into
an
5).
n
ptacle
acts
receptacle so it cannot be pulled out.
3. To remove plug, push plug inward and turn to counterc
l plug straight out.
pul
lockwise,
MAINTAENANCE:
Electrical and mechanical inspection of all components must
formed on a regularly scheduled basic, determined by th
per
ronment and frequency of use. It is recommended that
envi
be
e
inspection be performed a minimum of once a year.
Figure 4 (mounting receptacle onto back box with
hinge in UP position)
WARNING
Electrical power supply must be “OFF” before and during
installation and maintenance. Installation and
maintenance procedure must be performed by a trained
and competent electrician.
WARNING
If any parts of the receptacle or plug appear to be missing,
broken, or show signs or damage, DISCONTINUE USE
IMMEDIATELY. Replace with the proper replacement
part(s) before continuing service.
1.Inspect all contact wire terminals for tightness. Discolorati
ue to excessive heat is an indicator of a possible problem an
d
sho
uld be thoroughly investigated and repaired as necessary
2. Ins
pect contacts for signs of wear and replace if necessa
lean exterior surfaces making sure nameplates remain legible.
3. C
ry.
4.Check tightness of all screws before using.
Replacement Parts
Catalog No. Description
125 V 250 V
on
Figure 5 - Plug Inserts In Receptacle
d
.
EFSR-2023
EFSR-2023K
EFSR-2023M
ENR5201
EFSR-20232 Receptacle cover (aluminum).
EFSR-20232K Receptacle for use on Killark SWB boxes
Dimensions: U-Line® EFS Receptacle and ECP/NCP Plugs
Single Gang Box Double Gang Box
ECP/NCP Plugs
U-Line® EFS Receptacle Catalog Number
Aluminum Receptacle and Malleable Iron Mounting Box ◊Malleable Iron Receptacle and Mounting Box
Class I, Groups C & D, Class II, Group F, G, Class IIIClass I, Groups C & D, Class II, Groups F, G Class III
Suitable for Group B when external seals are used.Suitable for Group B provided external seals are used.
Single Gang-Factory Seal
Type Hub Size 125V 250V 125V 250V
Dead-End ½ EFS150-2023 EFS150-20232 EFS150-2023M EFS150-20232M
Class I, Group C and D, Class II, Group F, G, Class III Class I, Group C and D, Class II, Group F, G, Class III
Dead-End ½ EFS250-2023 EFS250-20232 EFS250-2023M EFS250-20232M
Malleable Iron Receptacle and Mounting Box With Factory Sealed Chamber
Class I, Groups B, C & D, Class II, Groups F, G Class III
No external seals required.
Single Gang-Factory Seal
Type Hub Size 125V 250V
Dead-End ½ EFSB150-2023M EFSB150-20232M
¾ EFSB175-2023M EFSB175-20232M
Feed-Thru ½ EFSCB150-2023M EFSCB150-20232M
¾ EFSCB175-2023MEFSCB175-20232M
Rating Notes:
1. ◊ Single gang aluminum EFSR receptacle cover and malleable iron EFD box suitable for Class I, Div. 1, Group B when
external seals are used (seals must be placed adjacent to each conduit entrance).
2. Single gang malleable iron EFSR receptacle and mounting EFD box suitable for Group B, no external seals
w
hen using with sealing chamber.
required
3. TYPE 3RX when the screw cover is installed and the cover is fully engaged. Apply lubricant provided in the bag on the
cover and all flanges to keep water out.
Aluminum Receptacle and Malleable Iron Contender Series Mounting Box
Class I, Groups C & D, Class II, Group F, G, Class III
Single Gang-Factory Seal
Dead-End ½ ENR11201 ENR11202
¾ ENR21201 ENR21202
1 ENR31201 ENR31202
Feed-Thru
½ ENRC11201 ENRC11202
¾ ENRC21201 ENRC21202
1
ENRC31201 ENRC31202
Double Gang-Factory Seal
Class I, Groups C & D, Class II, Group F, G, Class III
Dead-End ½ ENR12201 ENR12202
Feed-Thru
¾
1
½ ENRC12201 ENRC12202
¾
1
ENR22201 ENR222
ENR32201 ENR32202
ENRC22201 ENRC222
ENRC32201 ENRC32202
02
02
Rating Notes:
TYPE 3RX when the screw cover is installed and the cover is fully engaged. Apply lubricant provided in the bag on the
cover and all flanges to keep water out.
Ordering Notes:
Standard U-Line Contender catalog includes aluminum ENR receptacle and malleable iron EDS box. For aluminum box
and receptacle cover, add suffix SA (For Ex: Cat# ENR11201SA)
Retain this instruction sheet for future reference.
Page 4 330062-1 Rev. A 02/18/09
U-Line® Intermateability Chart
he Appleton “ECP” Model “D” Plug and “EFS” and “ENR” Receptacles are UL Listed Combinations. The Appleton “ECP” Model “D” Plug with
T
Killark® UL Listed “UGR” Series Receptacles or with Crouse-Hinds® UL Listed “ENR” Series Receptacles are UL Classified Combinations.
®
Appleton Model D
Plug Appleton Plug Receptacle
Rating Cat. No. Rating
®
U-Line
Receptacle
Cat. No.
Contender
U-Line
Receptacle Receptacle Receptacle Conduit Size, No. of