Appleton 20 Amp U-Line® ECH Factory Sealed Receptacles, 20 Amp U-Line® ECHT Factory Sealed Receptacles Instruction Sheet
308203
UL Listed 139L
US Patent No. 3.346.709
Other Patents Pending
INSTRUCTION SHEET
PANEL MOUNTING RECEPTACLE
®
Rev. E 11/14/05
ECHT has tapered threads
(1-1/2 — 11-1/2 NPT).
Seals must be placed adjacent
to each conduit entrance.
Class I, Groups B, C, and D
Class II, Groups F*, G
Class III
Plugs also fi t NEMA 5-15R, 5-20R, or
6-20R receptacles in non-classifi ed
areas
Plugs are 2-wire, 3-pole, for cable
diameter .427” to .625”
STG Sealing Ring Set Screw
Class I, Groups B, C, and D
Class II, Groups F*, G
Class III
U-LINE
Receptacle interlocked with switches for use in hazardous atmosphere,
do not use in Class II, Group F locations which contain electrically conductive dusts.
Note: For NEMA 4X Rating use screw cover provided.
Caution: Receptacle interlocked with switches for use in hazardous atmosphere,
do not use in Class II, Group F locations which contain electrically conductive dusts.
Receptacle 125V
Catalog Number 20 Amp
ECHT2023 250V
U-Line Model B Plugs for use with above Receptacles
ECHT20232 20 Amp
Receptacle
Catalog Number 125V
15 Amp
ECP1523
ECP2023 125V
ECP20232 20 Amp
NCP1523 250V
NCP2023 20 Amp
ECP20232
Rev. E 11/14/05
ECH/ECHT Factory Sealed Receptacles
®
for Panel Mounting: Explosionproof, Dust-Ignitionproof.
20 Amp U-Line
Dead-Front Safety Construction — Grounding thru Extra Pole and Shell. Raintight.
opening. Minimum 7 full threads of engagement required for Group B; minimum
5 threads for groups C and D.
that prevents the escape of sparks or burning materials.
Recommended Enclosure Types for use with ECH/ECHT Receptacle
Hazardous
(Classifi ed) Suitable
Location Enclosure Type
Typical Class I, Division 1 Application Typical Class I, Division 2 Application
Class I, Div. 1 NEMA 7BCD with 1-1/2” (1-1/2—11-1/2 NPT) or 2” (2—11-1/2 NPSM) thread
Class I, Div. 2 NEMA 3, 3R, 3S, 4, 4X, 5, 12 or any suitable enclosed or gasketed enclosure
opening. Minimum 3 full threads of engagement required.
mizes entrance of dust and prevents the escape of sparks or burning materials.
(tapered) threads, such as in panelboards. The ECH is ideal for Class 1, Division 1 applications in
NPSM (straight) thread 2” openings. Class 1, Division 1 applications require a minimum of fi ve full
threads of engagement (seven for Group B).
closures having threaded or non-threaded openings for these receptacles. Where threaded en-
closures are used, they must have 1-1/2” NPT or NPSM threads to fi t the ECHT and 2” NPSM
Class II, Div. 1 NEMA 9F*, G with 1-1/2” ((1-1/2—11-1/2 NPT) or 2” (2—11-1/2 NPSM) thread
Class II, Div. 2 NEMA 3, 3S, 4, 4X, 5, 12 or any suitable enclosed or gasketed enclosure that mini-
• For Class I, Division 1 applications, the ECHT is ideal where unit is threaded into 1-1/2” NPT
(straight) threads to fi t the ECH. No thread engagement is required unless non-factorysealed de-
• For Class 1, Division 2 applications, the ECHT and ECH are suitable for use with approved en-
vices are also installed in the enclosure.
• Furnished with Steel locknut and neoprene sealing gasket assembly.
• Gasketed construction protects receptacle against moisture and dirt with plug in or out.
• Interior switch cylinder has neoprene O-ring at each end to seal out dust and moisture.
• Copper-free aluminum housing (4/10 of 1% max. copper content). Epoxy clad—two coat baked
fi nish.
PANEL MOUNTING RECEPTACLE
®
U-LINE
For Division 2 Location:
For Class I, receptacle must be mounted in any enclosure suitable for non-hazardous locations.
Install in 1-1/2—knock-out opening and tighten the locknut fi rmly and tighten the set screw to
prevent rotation when the receptacle is in the desired position. For Class II, a dust tight enclosure is
required.
For Raintight Location:
Receptacle must be mounted in enclosure suitable for raintight locations.
may be wired before assembly).
tacle and any live or dead metal parts of the enclosure, and between the dead metal parts of the
CAUTION
1. Attach wiring only after the receptacle has been secured in place as described above (Pigtails
2. A 1/2 inch spacing through air must be maintained between the wiring terminals of the recep-
7 FULL THREADS FOR GROUP B
5 FULL THREAD FOR GROUPS C AND D
3 FULL THREAD FOR GROUPS F AND G
receptacle and the live parts in the enclosure.
* For use only in equipment where the acceptability of the combination is determined by
Underwriters Laboratories, Inc.
Rev. E 11/14/05
For Division 1 Location:
Receptacle must be mounted in classifi ed enclosure suitable for class and group of the location.
Install in 1-1/2—11-1/2 NPT thread opening (tapered thread with at least 7 full threads engaged
for Group B, 5 full thread engaged for Groups C and D, 3 full thread engaged for Groups F and
G. Adjust receptacle to the desired position and then tighten the locknut fi rmly and tighten the set
screw to prevent rotation.
Loading...