3P
WSR, WSRD, WSRDW Interlocked
Arktite
®
Receptacles with
Enclosed Disconnect Switches
WSR
WSRD
30, 60, 100A
NEMA 3, 3R, 4, 12
Raintight
Watertight
Corrosion-Resistant
UL and cUL Listed
WSRDW
Aluminum
NEMA 3R, 4, 12
Sheet Metal
NEMA 3R, 12
Sheet Metal
Viewing Window
NEMA 3R, 12
Applications:
• The WSR and WSRD disconnect
switches are used as a service outlet for
portable or fixed electrical equipment –
generators, compressors, welders, etc.
• They are designed for use in non-
hazardous areas where dust, moisture
and corrosion may be a problem.
• Designed for flush or surface mounting.
• A fusible type switch, when used, also
provides short circuit protection.
Features:
WSR and WSRD/WSRDW:
• Switches are NEMA type HD heavy duty
3-pole, with visible blades; a quick
make-and-break mechanism with
reinforced, positive pressure type blade
and jaw construction. Fusible types have
fuse clips with steel reinforcing springs
of positive pressure type. Pressure
connectors are used for wire
connectors.
• For maximum safety, the spring door
receptacle at the bottom of the unit is
mechanically interlocked with the switch
operating mechanism. The switch
cannot be closed
until the plug is fully
inserted and the plug
cannot be
withdrawn or inserted
unless the switch
is open. With the switch open,
accidental plug withdrawal is prevented
by the interlock mechanism. Withdrawal
can only be accomplished by activation
of the interlock release lever located on
the receptacle.
• Enclosures are compact and rectangular
in shape with a gasketed, hinged door.
• Enclosure, handle and other exterior
parts are corrosion resistant.
• The switch enclosure covers are
interlocked with the body and operating
mechanism and cannot be opened when
the plug is engaged and the switch is
closed ("ON"). When the switch
is open,
the switch
cannot
be put in a closed
("ON") position with the door open.
WSR:
• Mounting lugs may be rotated 90° or
moved to the vertical centerline portion
for pole mounting.
• Side hinged covers are retained in a
closed position by compression spring
draw-pull catches, which permit the
opening or closing of the cover without
tools.
• The switch operating handle may be
padlocked in the "ON" or "OFF"
position, thereby preventing
unauthorized operation of the switch
and/or opening of the enclosure. Up to
three padlocks may be used. In addition,
a unique hinge arrangement has been
devised to allow the door of the unit to
be padlocked. This feature allows
operation while preventing unqualified or
unauthorized entry.
Standard Materials:
WSR and WSRD/WSRDW:
• Receptacle housings and plug exteriors
– copper-free aluminum
• Insulation (plug and receptacle) –
fiberglass-reinforced polyester
• Pressure contacts – brass
• Crimp/solder contacts – leaded red
brass
WSR:
• Enclosure – copper-free aluminum
• Operating handle – copper-free
aluminum
• Other exterior parts – stainless steel
WSRD/WSRDW:
• Enclosure – sheet steel
• Operating handle – sheet steel
• Other exterior parts – stainless steel
Standard Finishes:
• Copper-free aluminum – WSR enclosure,
plug exteriors – natural
• Leaded red brass – electro-tin-plate
• Brass – natural
• Sheet steel – baked grey enamel
• Fiberglass-reinforced polyester – natural
(red)
Certifications and
Compliances:
WSR:
• NEMA 3R, 4, 12 (enclosure)
• UL Standard 98
• cUL Standard C22.2 No. 4
WSRD/WSRDW:
• NEMA 3R, 12
• UL Standard 98
• cUL Standard C22.2 No. 4
Electrical Rating Ranges:
• 3 and 4 pole; fusible or non-fusible; 240
VAC, 250 VDC; 600 VAC
• 30, 60, 100 amperes
• 7
1
/
2
to 75 HP
3P
Options:
Description
Suffix
• Interiors rotated 22
1
/
2
° to the right
(viewed from face)..........................
S4
• Auxiliary switch, 600 VAC-DC
heavy duty pushbutton station
rating, can be supplied, and its
contacts will close after safety
switch contacts open and close
before safety switch opens.............
S483
1316
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Copyright
©
2012 Cooper Crouse-Hinds
WSR, WSRD, WSRDW Interlocked
Arktite
®
Receptacles with
Enclosed Disconnect Switches
APJ/NPJ Plugs
WSR
Conduit
Opening
Sizes§
1
1
1
/
4
1
1
/
2
1
1
1
/
4
1
1
/
2
1
1
1
/
4
1
1
/
2
1
1
1
/
4
1
1
/
2
240VAC
600VAC
250VDC
Cat. #
WSR3351*
WSR6351*
WSR10351*
WSR3352*
WSR6352*
WSR10352*
WSR33541
WSR63541
WSR103541
WSR33542
WSR63542
WSR103542
Max.
HP
Rating
240VAC
7
1
/
2
15
30
7
1
/
2
15
30
7
1
/
2
15
30
7
1
/
2
15
30
Max.
HP
Rating
480VAC
15
30
60
15
30
60
15
30
60
15
30
60
30, 60, 100A
NEMA 3, 3R, 4, 12
Raintight
Watertight
Corrosion-Resistant
UL and cUL Listed
3P
WSRD‡■ For viewing window see note 2
Max.
HP
Rating
600VAC
20
50
75
20
50
75
20
50
75
20
50
75
600VAC
250VDC
Cat. #
WSRD3351*
WSRD6351*
WSRD10351*
WSRD3352*
WSRD6352*
WSRD10352*
WSRD33541
WSRD63541
WSRD103541
WSRD33542
WSRD63542
WSRD103542
Max.†
HP
Rating
480VAC
15
30
60
15
30
60
15
30
60
15
30
60
Max.†
HP
Rating
600VAC
20
50
75
20
50
75
20
50
75
20
50
75
System
3-Wire, 3-Pole
Style 1, Fusible
3-Wire, 4-Pole
Style 2, Fusible
3-Wire, 3-Pole
Style 1, Non-
fusible
3-Wire, 4-Pole
Style 2, Non-
fusible
Amps
30
60
100
30
60
100
30
60
100
30
60
100
*Arranged for NEC Class H fuses. May be field converted to NEC Class J fuses.
§Furnished with reducer which may be removed to obtain one size larger opening. Locknut and bushing used must meet NEC requirements (WSR only).
†Ratings of unfused and fusible switches with time delay fuses.
■
Viewing window – add "W" to prefix, i.e.: WSRDW6352.
‡Conduit entrances not furnished.
APJ/NPJ Plugs
Amps Max. Volts
30
250 DC
600 AC
250 DC
600 AC
250 DC
600 AC
Outside Dia. of Cable,
Flexible Conduit or
Armored Cable
0.60 to 1.20
0.55 to .070
0.70 to 0.85
0.75 to 1.45
0.75 to 1.07
1.07 to 1.35
1.00 to 1.70
0.93 to 1.21
1.21 to 1.50
Style 1†† 3-wire,
3-pole Cat. #
APJ3375
Style 2†† 3-wire,
4-pole Cat. #
APJ3485
NPJ3483
NPJ3484
APJ6485
NPJ6484
NPJ6485
APJ10487
NPJ10486
NPJ10487
††Style 1 - Grounded through shell. Style 2 - Grounded
through extra pole and shell. For a detailed description of
these grounding methods, see page 1264.
60
APJ6375
100
APJ10377
Dimensions
In Inches:
WSR
Dims.
30 Amps
a
11
3
/
4
b
20
1
/
16
c
6
9
/
16
d
7
1
/
4
e
2
15
/
32
f
27
11
/
16
g
4
3
/
4
gg
7
Mtg. Holes
3
/
8
60 Amps 100 Amps
11
3
/
4
20
1
/
16
6
9
/
16
7
1
/
4
2
15
/
32
28
11
/
16
5
1
/
4
6
13
/
16
3
/
8
14
7
/
8
26
5
/
16
9
9
/
16
8
1
/
4
2
7
/
8
35
3
/
8
7
1
/
4
7
3
/
4
7
/
16
Dim. "g" and "gg" are exposed portion of plug when
engaged with receptacle.
WSRD
WSR
WSRD
Dims.
g
gg
Mtg. Holes
60 Amps
5
13
/
16
6
13
/
16
5
/
16
3P
Dim. "g" and "gg" are exposed portion of plug when
engaged with receptacle.
APJ
NPJ
APJ
NPJ
www.crouse-hinds.com
US: 1-866-764-5454
CAN: 1-800-265-0502
Copyright
©
2012 Cooper Crouse-Hinds
1317
