Product Detail Manual

2014-10-23

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SYS19: BASE2

50:

95:

98:

100:

JOB: CH62318A-1075-1 Name: 3P-995

DATE: JUL 19 2002

Time: 11:04:02 AM Operator: CP COLOR: CMYK

WSR, WSRD, WSRDW, WSRD CH S901
Interlocked Arktite Receptacles with Enclosed
Disconnect Switches
APJ/NPJ Plugsɍɍ

WSR

System

Amps

Conduit
Opening
Sizes§

240VAC
600VAC
250VDC
Cat. #

Max.
HP
Rating
240VAC

Max.
HP
Rating
480VAC

TCP: 15001

Typedriver Name: TS name csm no.: 100

3P

30,60,100A
NEMA 3,3R,4,4X,12
Raintight
Watertight
Corrosion-Resistant

Max.
HP
Rating
600VAC

WSRD‡2 For viewing window & SS see note 2
Max.1
HP
Rating
480VAC

600VAC
250VDC
Cat. #

Max.1
HP
Rating
600VAC

3-Wire, 3-Pole
Style 1, Fusible

30
60
100

1
11⁄4
11⁄2

WSR3351*
WSR6351*
WSR10351*

71⁄2
15
30

15
30
60

20
50
75

WSRD3351*
WSRD6351*
WSRD10351*

15
30
60

20
50
75

3-Wire, 4-Pole
Style 2, Fusible

30
60
100

1
11⁄4
11⁄2

WSR3352*
WSR6352*
WSR10352*

71⁄2
15
30

15
30
60

20
50
75

WSRD3352*
WSRD6352* 
WSRD10352*

15
30
60

20
50
75

3-Wire, 3-Pole
Style 1, NonFusible

30
60
100

1
11⁄4
11⁄2

WSR33541
WSR63541
WSR103541

71⁄2
15
30

15
30
60

20
50
75

WSRD33541
WSRD63541 
WSRD103541

15
30
60

20
50
75

3-Wire, 4-Pole
Style 2, NonFusible

30
60
100

1
11⁄4
11⁄2

WSR33542
WSR63542
WSR103542

71⁄2
15
30

15
30
60

20
50
75

WSRD33542
WSRD63542 
WSRD103542

15
30
60

20
50
75

APJ/NPJ Plugs

Outside Dia. of Cable,
Flexible Conduit or
Style 1† 3-wire,
Armored Cable
3-pole Cat. #

Style 2† 3-wire,
4-pole Cat. #

250 DC
600 AC

0.60 to 1.20
0.55 to .070
0.70 to 0.85

APJ3375

APJ3485
NPJ3483
NPJ3484

60

250 DC
600 AC

0.75 to 1.45
0.75 to 1.07
1.07 to 1.35

APJ6375

APJ6485
NPJ6484
NPJ6485

100

250 DC
600 AC

1.00 to 1.70
0.93 to 1.21
1.21 to 1.50

APJ10377

APJ10487
NPJ10486
NPJ10487

Amps
30

Max. Volts

Dimensions
WSR

* Arranged for NEC Class H fuses. May be field converted to NEC
Class J fuses.
ɍɍ Pressure connectors are supplied as standard. To specify
crimp/solder type terminators, add the suffix ‘‘T’’ to the catalog number.
For example: APJ3375-T (Plug).
§ Furnished with reducer which may be removed to obtain one size
larger opeing. Locknut and bushing used must meet NEC
requirements. (WSR only).
† Style 1 – Grounded through shell. Style 2 – Grounded through extra
pole and shell. For a detailed description of these grounding methods,
see page 937.
‡ Conduit entrances not furnished.
1 Ratings of unfused and fusible switches with time delay fuses.
2 Viewing window – add ‘‘W’’ to prefix, i.e.: WSRDW6352.
Stainless steel – add suffix ‘‘CHS901’’, i.e.: WSRD6352CHS901
WSR
Amps.
a
b
c
d
e
f
g
gg
Mtg.
Holes

WSRD

30
113⁄4
201⁄16
69⁄16
71⁄4
215⁄32
2711⁄16
43⁄4
7

60
113⁄4
201⁄16
69⁄16
71⁄4
215⁄32
2811⁄16
51⁄4
613⁄16

100
147⁄8
265⁄16
99⁄16
81⁄4
27⁄8
353⁄8
71⁄4
73⁄4

3⁄8

3⁄8

7⁄16

WSRD
60 Amps.
g
513⁄16
gg
613⁄16
Mtg.
5⁄16
Holes
Dim. ‘‘g’’ and ‘‘gg’’ are exposed portion
of plug when engaged with receptacle.

APJ

NPJ

 – available with Lightning Service

APJ
TM

NPJ

delivery. See Section G for complete details.
Copyright 2002 Cooper Industries, Inc.

STIBOINFO((CRH:MAIN:3P:995))
PDFINFO

CH0 0 3 P - 3

995

Zoom: 100

2:

5:

SYS19: BASE2

50:

95:

98:

JOB: CH62318A-1074-1 Name: 3P-994

100:
DATE: JUL 19 2002

WSR, WSRD, WSRDW, WSRD CH S901
Interlocked Arktite Receptacles with
Enclosed Disconnect Switches

3P

WSR

Aluminum
NEMA 3R,12

Application:

ɀ The WSR and WSRD disconnect switches
are used as a service outlet for portable or
fixed electrical equipment – generators,
compressors, welders, etc.
ɀ They are designed for use in nonhazardous areas where dust, moisture and
corrosion may be a problem.
ɀ Designed for flush or surface mounting.
ɀ A fusible type switch, when used, also
provides short circuit protection.

Features:

WSR and WSRD:
ɀ Switches are NEMA type HD heavy duty
3-pole, with visible blades; a quick makeand-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.
ɀ 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.
ɀ Enclosures are compact and rectangular in
shape with a gasketed, hinged door.
ɀ Enclosure, handle and other exterior parts
are corrosion resistant.

994

STIBOINFO((CRH:MAIN:3P:994))
PDFINFO

CH0 0 3 P - 2

Time: 11:03:58 AM Operator: CP COLOR: CMYK

WSRD

Sheet Metal
NEMA 3R,12

TCP: 15001

30,60,100A
NEMA 3,3R,4,4X,12
Raintight
Watertight
Corrosion-Resistant

WSRDW

Sheet Metal
Viewing Window
NEMA 3R,12

ɀ 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:
ɀ Mounting lugs may be rotated 90° or
moved to the vertical centerline portion for
pole mounting.
ɀ 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.
ɀ 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:
ɀ Receptacle housings and plug exteriors –
copper-free aluminum
ɀ Insulation (plug and receptacle) –
fiberglass-reinforced polyester
ɀ Pressure contacts – brass
ɀ Crimp/solder contacts – leaded red brass
WSR:
ɀ Enclosure – copper-free aluminum
ɀ Operating handle – copper-free aluminum
ɀ Other exterior parts – stainless steel
WSRD:
ɀ Enclosure – sheet steel
ɀ Operating handle – sheet steel
ɀ Other exterior parts – stainless steel
WSRD CH S901:
ɀ Enclosure – stainless steel
Copyright 2002 Cooper Industries, Inc.

Typedriver Name: TS name csm no.: 100

WSRD CH S901
Stainless Steel
NEMA 3,3R,4,4X

Standard Finishes:

ɀ Copper-free aluminum – WSR enclosure,
plug exteriors – natural
ɀ Stainless steel – natural
ɀ Leaded red brass – electro-tin-plate
ɀ Brass – natural
ɀ Sheet steel – baked grey enamel
ɀ Fiberglass-reinforced polyester – natural
(red)

Electrical Rating Ranges:

ɀ 3 and 4 pole; fusible or non-fusible; 240
vac, 250 vdc; 600 vac
ɀ 30, 60, 100 amperes
ɀ 71⁄2 to 75 HP

Certifications and
Compliances:

WSR:
ɀ NEMA 3R, 4, 12 (enclosure)
ɀ UL Standard 98
WSRD:
ɀ NEMA 3R, 12
ɀ UL Standard 98
WSRD CH S901:
ɀ NEMA 3, 3R, 4, 4X
ɀ UL Standard 98

Options:

ɀ Interiors rotated 221⁄2° to the right (viewed
from face) – add suffix S4 to Cat. No.
ɀ Auxiliary switch, 600 vac-dc heavy duty
push button station rating, can be supplied,
and its contacts will close after safety switch
contacts open and close before safety switch
opens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S483
ɍɍ Pressure connectors are supplied as standard. To

specify crimp/solder type terminations, add the suffix ‘‘T’’ to
the catalog number. For example: APJ3375-T (Plug)

Zoom: 100



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