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  3. EXR12-30T200 Rotary EXR Enclosure
EXR12-30T200 Rotary EXR Enclosure

SCE EXR12-30T200 Rotary EXR Enclosure User manual

  • Hello! I've reviewed the installation instructions for the Saginaw Control & Engineering EXR series rotary disconnects, including models SCE-EXR12-30T200 and SCE-EXR18-400. This document provides details on how to install these disconnects, emphasizing the importance of safety and ensuring that all doors are properly latched before power restoration. I'm ready to answer your questions about these products.
  • What is the purpose of the EXR enclosure?
    What models of disconnects are compatible with the SCE-EXR12-30T200?
    What models of disconnects are compatible with the SCE-EXR18-400?
1xr-instman.pdf
Rotary exr disconnect installation
NEMA 3R, 4 & 12
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.
SCE-EXR12-30T200
Provisions for Compact Fusible
Disconnect with Rotary handle
Disconnect 30 to 200 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.
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:
Phillips
Screwdriver
7/16”, 11/32”, & 3/8”
WRENCH
NEEDLE NOSE
PLIERS
ADJUSTABLE
WRENCH
WIRE
CUTTERS
See for
modifications
required for some
Allen-Bradley
Operating Handles
!
!!
WARNING
Electrical shock and fl ash hazards
Appropriate PPE required
Read and follow all instructions
Close and latch this door  rst
CLOSE AND LATCH THIS DOOR FIRST
Close and fully latch all doors before power
is restored
Disconnect power before opening this door
Link to video
page 6
2xr-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.
Note: Keyway cutout on mounting provisions
to ease installation.
Label part number 130130
!
!!
WARNING
Electrical shock and fl ash hazards
Appropriate PPE required
Read and follow all instructions
Close and latch this door  rst
CLOSE AND LATCH THIS DOOR FIRST
Close and fully latch all doors before power
is restored
Disconnect power before opening this door
!
! !
WARNING
Electrical shock and fl ash hazards
Appropriate PPE required
Read and follow all instructions
Close and latch this door  rst
CLOSE AND LATCH THIS DOOR FIRST
Close and fully latch all doors before power
is restored
Disconnect power before opening this door
Link to cutouts
3xr-instman.pdf
EXR Assembly
6 mm
10 mm
Upper Assembly
Defeater Hook
Lower Assembly
WITH THE EXR NOW INSTALLED ONTO THE MAIN ENCLOSURE, THE INTERLOCK CAN NOW BE INSTALLED
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”
Allen Bradely NFPA70 Option
Standard Option
Detail C
Unlocked
Locked
4xr-instman.pdf
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.
ADJUST THE MDV TO YOUR FLANGE SIZE
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)
lower ASSEMBLY
5xr-instman.pdf
- Cut rod to length and install
- 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.
6xr-instman.pdf
cutout detail modifications
Do not scale
Standard hole
location dashed
Catalog Number
Catalog Number
Catalog Number
194R-P…
194R-HM4-L
-HM4-N2-L
194R-HM4
140U-P…
-HM4E-L
-HM4E-N2-L
-HM4E
Standard cutout Standard cutout
Allen-Bradley 400 amp
Allen-Bradley
Allen-Bradley
1.469”
(37.5mm)
Ø.217”
(Ø5.5mm)
x4
Ø2.559”
(Ø65mm)
1.469”
(37.5mm)
2.958”
(75mm)
Standard hole
location dashed
1.469”
(37.5mm)
C
L
2.958”
(75mm)
2.958”
(75mm)
1.469”
(37.5mm)
2.958”
(75mm)
2.958”
(75mm)
2.958”
(75mm)
or
/