Hazardous Duty Plugs, Receptacles and Interlocks
Hazardous Duty Plugs, Receptacles and Interlocks
Delayed Action Receptacles
Explosion Proof: Div. 1, Class 1, Groups C and D
Circuit breaking receptacles, plugs and connectors assure
complete circuit breaking under full rated loads. Equipment
grounding is provided by means of a separate pole which
makes contact before and breaks contact after the circuit
poles. The delayed action operation sequence is as follows:
Insert plug, turn left, push in to make electrical contact then
turn right to prevent accidental disconnection. To withdraw
plug, the reverse procedure is followed which allows time for
extinction of the arc and cooling before the plug can be
completely withdrawn.
Ordering Information
Receptacles
Connector^
Plug
Surface Mount**
Ratings
Type EFS
20 Amp
125VAC or 250VAC
Type DA
30 Amp+
250VAC or 480VAC
60 Amp*
480VAC
Poles/Wires
Straight
Angled
Flush Mount
Bushing
Cable
Hole Dia.
2P, 3W
3P, 4W
2P, 3W
3P, 4W
2P, 3W
3P, 4W
4462
4463
RA4233BC
RA4234BC
RA4263BC
RA4264BC
4464FC
4465FC
4233BC
4234BC
4263BC
4264BC
4445
4446
__
__
__
__
4803
4804
__
__
__
__
4466
4467
4237BC
4238BC
4267BC
4268BC
l"
x"
e"
f"
1b"
1b"
Notes:
**Also
available for use at 30 Amp, 480VAC
**Can be furnished with flap or screw cap covers. When so required, add suffix “FC” for flap or suffix “SC” for screw cap to above catalog number. Price on application.
M
Furnished with plaster gage plate. Requires wall depth of 4-inches minimum.
^ Portable-service receptacles (connectors) Not UL listed.
+ 30 Amp Iron Bodied Plug Family for replacement use only. Not UL listed. (60 Amp carries full listing)
Hazardous Location
142
© 2001 Thomas & Betts Corporation. Specifications are subject to change without notice.
www.tnb.com
Delayed Action Receptacles
Delayed Action Receptacles (EFS and DA)
Specifications
Receptacle Housings –
EFS – Cast copper free aluminum;
DA – cast iron, corrosion resisting baked enamel finish.
Plug Housings –
20 Amp –steel, cadmium plated; 30 Amp –
cast iron; 60 Amp – steel and aluminum, natural finish. Plugs
are furnished with aluminum alloy cable clamp and neoprene
cable bushing.
Connectors –
Cast aluminum, natural finish. Furnished with
aluminum cable clamp and neoprene cable bushing.
Flush Plates –
Brass, polished chromium finish.
Outlets –
Furnished with one outlet top or bottom as follows.
20 Amp –
f";
30 Amp – 1", 60 Amp – 1d". Additional or
larger outlets charged extra. Maximum conduit sizes, four
ways as follows:
20 Amp – 1", 30 Amp – 1d"; 60 Amp – 2". Single gang-top
and bottom only, two gang – one per gang top and bottom
and one on each side. Specify size and location.
Cable Bushing –
oil resistant, neoprene strain relief cable
bushing regularly furnished with hole size as listed. Other
hole sizes available at no extra cost if specified on order. See
page 143.
Surface Gang Units –
EFS available and can be furnished in
2 gang units or in combination with other like devices.
Approvals –
(20 & 60 Amp)
E10919
Dimensions
Surface Mount Receptacles
Type EFS (20 Amp) Straight
3"
.28" Dia.
2 MTG
Holes
D
Flush Mount Receptacles
Type DA (30 & 60 Amp) Straight
Y
U
S
Type EFS
3.75"
3"
3.75"
MTG
Z
4.75" 5.5"
5.37"
3.75"
MTG
4
V
R
Z
.28" Dia.
2 MTG
Holes
3.75" MTG
a.
3.75" MTG
S
T
2.56"
3.12"
4.75"
3.62"
Amp
20 Angle
30 Straight
Angle
60 Straight
Angle
D
2.56"
3.87"
3.06"
3.87"
3.87"
R
—
––
7.37"
––
9"
S
6.12"
8.62"
8.37"
9.25"
9.25"
T
.28’
.34"
.28"
.34"
.34"
U
V
Y
Z
3.75" 3.75 3" 5.37"
6.12" 5" 5.25" 6.75"
3.50" 5.50" 4.75" 4.75"
6.12" 5" 5.25" 6.75"
6.12" 5" 5.25" 6.75"
.81"
5.37"
2.56"
3.31"
Connector
5.75"
Plug
20 Amp Plug
4.12"
30 Amp Plug
60 Amp Plug
Hazardous Location
2.75"
1.75"
5.12"
7"
2.12"
Dia.
3.12"
© 2001 Thomas & Betts Corporation. Specifications are subject to change without notice.
www.tnb.com
143
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