Rotary exr disconnect installation
THE INTENT & PURPOSE OF THE EXR ENCLOSURE IS:
1) Isolate the primary power supply.
2) Initiate appropriate PPE for entry.
3) Prevent unauthorized entry, disconnect power before
entry, and requiring the primary door latch or handle to
be closed, latched, and engaged before the disconnect is
restored.
NEMA 3R, 4 & 12
SCE-EXR12-30T200
Provisions for Compact Fusible
Disconnect with Rotary handle
Disconnect 30 to 200 amps AllenBradley 194R, Square D GS2, Eaton/
Bussmann R9, Siemens CFS models
and Socomec Fuserbloc models.
Provides protection from dirt, dust,
oil and water.
SCE-EXR18-400
Provisions for Compact Fusible
Disconnect with Rotary handle 400+
amps Allen-Bradley 194R, Square D
GS2, Eaton/Bussmann R9, Siemens
CFS models and Socomec Fuserbloc
models. Provides protection from
dirt, dust, oil and water.
For installation of an EXR to a Free Standing
Enclosure (Disconnect Enclosure) the
following tools will be required:
! WARNING
Electrical
shock and
flash hazards
Appropriate
PPE required
Read and
!
follow all
instructions
Close and
latch this
door first
Close and
is restoredfully latch all doors
before power
Disconnect
power before
opening
this door
CLOSE AND
LATCH THIS
DOOR FIRST
!
Phillips
Screwdriver
See
for
modifications
required for some
Allen-Bradley
Operating Handles
7/16”, 11/32”, & 3/8”
WRENCH
NEEDLE NOSE
PLIERS
1
WIRE
CUTTERS
ADJUSTABLE
WRENCH
xr-instman.pdf
First drill the mounting pattern into the right
side of the main enclosure.
Next use the disconnect cover plate to line
up clearance hole drilling location for quarter
turn.
Disconnect cover plate, quarter turn, and
nuts will connect to the upper assembly and
hold it in place.
Apply gasket to the left side of the EXR
enclosure outside the holes to ensure a
proper seal.
Use 128550 master bolt pack to install EXR
to the main enclosure.
! WARNING
s
flash hazard
and
Electrical shock
PPE required
Appropriate
Read and follow
Note: Keyway cutout on mounting provisions
to ease installation.
ions
all instruct
first
latch this door
Close and
before power
latch all doors
Close and fully
door
is restored
opening this
power before
Disconnect
!
CLOSE AND
LATCH THIS
DOOR FIRST
!
! WARNING
Electrical shock and flash hazards
Appropriate PPE required
Read and follow all instructions
Close and latch this door first
Close and fully latch all doors before power
is restored
Disconnect power before opening this door
!
CLOSE AND LATCH THIS DOOR FIRST
!
Label part number 130130
2
xr-instman.pdf
WITH THE EXR NOW INSTALLED ONTO THE MAIN ENCLOSURE, THE INTERLOCK CAN NOW BE INSTALLED
10 mm
6 mm
Lower Assembly
EXR Assembly
Defeater Hook
Upper Assembly
Mechanical interlock and defeater kit included
ATTACH EXR ASSEMBLY
Attach EXR assembly to stud on inside wall of EXR.
Install Defeater cable and crimp to lock into place
as shown in “Detail C”
Detail C
Unlocked
Standard Option
Locked
3
Allen Bradely NFPA70 Option
xr-instman.pdf
ATTACH UPPER ASSEMBLY
Using the PEMs from the disconnect cover
plate. Attach the EXR mechanical defeater
rod guide with keps nuts.
Insert quarter turn from outside of
enclosure with earth nut.
Attach EXR disconnect hook arm to quarter
turn.
Install cable and lock into place.
Refer: Detail C above.
UPPER ASSEMBLY
(Showing door components)
ADJUST THE MDV TO YOUR FLANGE SIZE
A- 3.50 inch flange is found on freestanding
enclosures that are 3 doors and larger. Remove the
8-32 nuts, position at the outer holes.
B- 3.00 inch flange is found on most freestanding
enclosures and is the preset location.
Install assembly 3 of the MDV kit with ¼-20 nut on
the stud adjacent to the door handle. Slide it all the
way to the flange and tighten.
Now adjust the MDV. With the disconnect
operating handle still in the “off” position, simply
pull the cable down so that the defeater strike is
horizontal.
Then tighten the screw to lock in position.
lower ASSEMBLY
4
xr-instman.pdf
- Install Disconnect according to Disconnect
Manufactures Installation Instructions.
- With the EXR assembly in the “on” position
verify the main enclosure door engages the
hook and prevents the door from opening.
- Cut rod to length and install
5
xr-instman.pdf
Standard cutout
cutout detail modifications
Do not scale
Standard cutout
Allen-Bradley
Catalog Number
194R-HM4-L
-HM4E-L
-HM4-N2-L
-HM4E-N2-L
CL
2.958”
(75mm)
2.958”
(75mm)
Allen-Bradley
Catalog Number
1.469”
(37.5mm)
194R-P…
140U-P…
Standard hole
location dashed
or
Standard hole
location dashed
2.958”
(75mm)
2.958”
(75mm)
Ø.217”
(Ø5.5mm)
x4
Allen-Bradley 400 amp
1.469”
(37.5mm)
Ø2.559”
(Ø65mm)
2.958”
(75mm)
1.469”
(37.5mm)
1.469”
(37.5mm)
Catalog Number
194R-HM4
-HM4E
Standard hole
location dashed
2.958”
(75mm)
6
xr-instman.pdf
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