www.hammondmfg.com
UHDM Modular Disconnect Enclosures - NEMA 12
Disconnect
Application
Designed to bolt together in any number
of units for maximum flexibility and ease
of transportation. The UHDM system
consists of a Master enclosure to house
the flange mounted disconnect switch
and interlocking Slave enclosures which
may be added or removed as required.
Master enclosure units will accept the
following disconnect switches and circuit
breakers:
•
ABB Controls
flange mounted
variable depth operating mechanism
for disconnect switches and circuit
breakers.
Allen Bradley
1494F flange mounted
disconnect switches and 1494D flange
mounted operators for circuit breakers.
Allen Bradley 1494V variable depth
flange operated disconnect switches
and circuit breaker mechanisms.
C-H Westinghouse
Type C361
disconnect switches and operator
mechanism. Cutler Hammer Type C371
circuit breaker operating mechanisms.
Flex Shaft
TM
handle operators for circuit
breakers.
General Electric
Type STDA flange
handles and variable depth operating
mechanisms for disconnect switches
and circuit breakers. Also Spectra-Flex™
cable operators for circuit breakers.
I-T-E Max-Flex™
flange mounted
variable depth operating handles
for disconnect switches and circuit
breakers.
Square D
disconnect switches and
circuit breakers used with Class 9422
flange mounted variable depth operating
mechanisms or cable mechanisms.
These enclosures will not receive Class
9422 bracket mounted disconnect
devices or Class 9422TG1 or TG2
devices.
ABB Controls, Allen Bradley, Cutler Hammer, General Electric, Siemens I-T-E Max-Flex™, Square D
Standards
• UL 508 Type 12
• CSA Type 12
•
Complies with
• NEMA Type 12
• JIC EGP-1-1967 and EMP-1-
1967
• IEC 60529, IP54
• Appropriate components are
required to maintain these
standards.
screw defeater and padlock hasp.
• Slave door handle complete with
padlock hasp.
• A mechanical interlock activated by
the master door prevents the auxiliary
door from being opened first.
• The universal flange cutout provides
mounting for disconnect operators
by use of the appropriate operator
adaptor kit.
• A bonding stud is provided in
the door and a grounding stud is
provided in the enclosure for each
door.
• A literature pocket is provided.
Note:
177
Freestanding Enclosures
Construction
• Formed from 10 gauge steel with
smooth continuously welded seams.
• Body stiffeners are provided in the
larger enclosures for extra rigidity.
• Heavy duty lifting eyes are
anchored into reinforced top
corners.
• Removable doors are secured with
heavy duty lift off hinges.
• Flange trough collar (FTC)
around door excludes liquids and
contaminants.
• Formed 10 gauge steel inner panels
are provided on collar studs.
• Panel supports are provided.
• Center post is removable, providing
easy panel installation.
• Heavy duty three point latching door
mechanism.
• Side openings are reinforced
to provide structural strength,
smooth edges and preset gasket
compression.
• Oil resistant gaskets on doors and
side openings are permanently
secured. No gasket kit is provided.
• Master door handle complete with
• Disconnect switches, circuit breakers
and operators are not provided with
the enclosure, and must be ordered
separately from the manufacturer.
•
Finish
• Door and enclosure are
phosphatized and finished in ANSI
61 gray recoatable powder coating
on the outside.
• Interior - white powder coating.
• Inner panel is finished in white
powder coating.
•
Accessories
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Additional inner panels
...contact factory
Air conditioners
...see page
349-367
Blank adaptor plates
...see page
182
Operator adaptor kits
...see page
182
Blowers
...see page
392
Breather kits
...see page
400-401
Doorstop kits
...see page
453
Enclosure stabilizers
...see page
456
Filter fans
...see page
371-384
Floor stand kits
...see page
453
Heaters
...see page
393-396
Light kits
...see page
452
Thermostats
...see page
397
Window kits
...see page
449
•
•
•
Technical references and CAD downloads available at www.hammondmfg.com
All dimensions in inches unless specified otherwise
Quality Products. Service Excellence.
© Hammond Manufacturing
Canada: 519.822.2960 or 905.456.3770
USA: 716.630.7030
Data Subject to change without notice
www.hammondmfg.com
ABB Controls, Allen Bradley, Cutler Hammer, General Electric, Siemens I-T-E Max-Flex™, Square D
UHDM Modular Disconnect Enclosures - NEMA 12
Disconnect
Freestanding Enclosures
Master Enclosures
Part No.
UHDM724118MFTC
UHDM844118MFTC
UHDM844124MFTC
UHDM727918MFTC
UHDM847918MFTC
UHDM847924MFTC
Overall Dimensions
A
B
C
72.13 40.75 18.13
84.13 40.75 18.13
84.13 40.75 24.13
72.13 79.00 18.13
84.13 79.00 18.13
84.13 79.00 24.13
D
60
72
72
60
72
72
E
33.75
33.75
33.75
72.00
72.00
72.00
F
9.06
9.06
12.06
9.06
9.06
12.06
G
38.06
44.06
44.06
38.06
44.06
44.06
H
63.13
75.13
75.13
63.13
75.13
75.13
I
36.5
36.5
36.5
36.5
36.5
36.5
K
34.75
34.75
34.75
34.75
34.75
34.75
Ship Wt.
lbs.
506
573
658
918
1050
1150
Description
Single Door Disconnect
Left side open
Two Door Disconnect
Left side open
Technical references and CAD downloads available at www.hammondmfg.com
All dimensions in inches unless specified otherwise
Quality Products. Service Excellence.
© Hammond Manufacturing
Canada: 519.822.2960 or 905.456.3770
USA: 716.630.7030
Data Subject to change without notice
178
www.hammondmfg.com
UHDM Modular Disconnect Enclosures - NEMA 12
Disconnect
179
Freestanding Enclosures
Slave Enclosures
Part No.
UHDM724118SFTC
UHDM844118SFTC
UHDM844124SFTC
UHDM727818SFTC
UHDM847818SFTC
UHDM847824SFTC
Overall Dimensions
A
B
C
72.13 40.25 18.13
84.13 40.25 18.13
84.13 40.25 24.13
72.13 78.50 18.13
84.13 78.50 18.13
84.13 78.50 24.13
D
60
72
72
60
72
72
E
33.75
33.75
33.75
72.00
72.00
72.00
F
9.06
9.06
12.06
9.06
9.06
12.06
G
38.06
44.06
44.06
38.06
44.06
44.06
H
63.13
75.13
75.13
63.13
75.13
75.13
I
36.5
36.5
36.5
36.5
36.5
36.5
K
34.75
34.75
34.75
34.75
34.75
34.75
Ship Wt.
lbs.
473
550
570
888
1010
1060
Description
Single Door Slave
Both sides open
Two Door Slave
Both sides open
Technical references and CAD downloads available at www.hammondmfg.com
All dimensions in inches unless specified otherwise
ABB Controls, Allen Bradley, Cutler Hammer, General Electric, Siemens I-T-E Max-Flex™, Square D
Quality Products. Service Excellence.
© Hammond Manufacturing
Canada: 519.822.2960 or 905.456.3770
USA: 716.630.7030
Data Subject to change without notice
www.hammondmfg.com
ABB Controls, Allen Bradley, Cutler Hammer, General Electric, Siemens I-T-E Max-Flex™, Square D
UHDM Modular Disconnect Enclosures - NEMA 12
Disconnect
Disconnect Ordering Information
ABB Controls
Disconnect switch:
• Flange operated switch (fusible or non-
fusible)
• Shaft:
• 18.13" deep enclosures use DSFHS-
17
• 24.13" deep enclosures, platform
must be used with shaft (not included)
• Handle: DSFHN-HS12
Circuit breaker:
• Circuit breaker: ABB
• Operating mechanism
• Shaft:
• 18.13" deep enclosures use K7FHD-
S17
• 24.13" deep enclosures, platform
must be used with shaft (not included)
• Handle mechanism: K7FHD-HS12
C-H Westinghouse
Type C361 disconnect switch:
• Disconnect switch with an operating
mechanism
• Operating handle: C361H1 or C361H3
• In 24.13" deep enclosures, platform
must be used with shaft (not included)
Type C371 circuit breaker operating
mechanism with a C-H Westinghouse
circuit breaker:
• Circuit breaker
• Operating mechanism
• Long operating rod (if required)
• Operating handle:
• 150 amp - C371H1 or C371H3
• 250 through 1200 amp - C371H5 or
C371H7
Flex-Shaft™ handle mechanism:
• Circuit breaker
• Complete Flex-Shaft™ handle mecha-
nism
I-T-E Siemens
Disconnect switch:
• Basic switch (right-hand)
• Fuse or no-fuse kit
• Flange mounted handle: FHOHS
• Switch operator
• Operating cable: FHOEC048
Circuit breaker:
• Circuit breaker
• Pressure wire connectors
• Flange mounted handle:
• 100 to 600 - FHOH
• 800 to 2000 - FHOHN
• Circuit breaker operator mechanism
• Operating cable:
• 18.13" deep enclosures accept 36" or
48" cables;
• 24.13" deep enclosures require a 48"
cable
• These items are available from Siemens
I-T-E as a complete mechanism with a
36" operating cable only Order items
separately when using a 48" cable
Freestanding Enclosures
Allen Bradley
Bulletin 1494F flange mounted
disconnect switch:
• Disconnect switch
• Fuse block adaptor (if required)
• Line and load connectors (if required)
1494D flange mounted circuit breaker
operating mechanism:
• Circuit breaker: C-H Westinghouse
• Flange mounted operating mechanism
• Slide mechanism
Bulletin 1494V flange mounted
disconnect switch:
• Disconnect switch
• Operating handle
• Connecting rod/rods (long)
• Trailer fuse block kit (if required)
• Fuse clip kit (if required)
• Line and load connectors (if required)
Bulletin 1494V flange mounted circuit
breaker operating mechanism:
• Circuit breaker: C-H Westinghouse
• Operating mechanism
• Operating handle
• Connecting rod (long)
General Electric
Disconnect switch:
• Disconnect switch: Type QMR or QMW
• Fuse clip kit or no-fuse kit
• Flange handle: STDA1 or STDA2
• Variable depth operating mechanism
• Extended length drive rod (if required)
Circuit breaker:
• Circuit breaker
• Flange handle: STDA1 or STDA2
• Variable depth operating mechanism
• Extended length drive rod (if required)
Circuit breaker with a Spectra-Flex™
cable operator:
• Circuit breaker
• Flange mounted handle mechanism:
• 150 to 600 amps - STDA1
• SK1200 - STDA3
• Breaker mounted mechanism
• Operating cable
Square D
Disconnect switch:
• Disconnect switch with operating
mechanism
• Universal handle mechanism: Type A-1
• Long operating rod (if required)
Circuit breaker:
• Circuit breaker
• Operating mechanism
• Universal handle mechanism: Type A-1
• Long operating rod (if required)
Class 9422 Type T disconnect switch
with a cable mechanism:
• Disconnect switch with operating
mechanism: Class 9422, Type T
• Handle mechanism: Class 9422, Type
A-1
• Cable mechanism: Class 9422 CFT_O,
3, 5, or 10 foot
Circuit breaker with a cable mechanism:
• Circuit breaker: Square D
• Handle mechanism: Class 9422, type
A-1
• Cable mechanism: Class 9422 CFT_O,
3, 5, or 10 foot
Technical references and CAD downloads available at www.hammondmfg.com
All dimensions in inches unless specified otherwise
Quality Products. Service Excellence.
© Hammond Manufacturing
Canada: 519.822.2960 or 905.456.3770
USA: 716.630.7030
Data Subject to change without notice
180
www.hammondmfg.com
UHDM Modular Disconnect Enclosures - NEMA 12
Disconnect
181
Freestanding Enclosures
Formed End Plates and Flat End Plates
• Formed from 12 gauge steel.
• Used to enclose the open end(s) of
one or more modular enclosures.
• Two types are available. No separate
gasket kit is required.
ABB Controls, Allen Bradley, Cutler Hammer, General Electric, Siemens I-T-E Max-Flex™, Square D
Flat Barrier Plate
• Formed from 14 gauge steel.
• May be used to provide a barrier
between modular enclosures. They
are supplied complete with gasket.
Flat Barrier Plate
Panel Bridge Kit
• Formed from 10 gauge steel.
• May be used to join back panels together
between modular enclosures to provide a
continuous panel surface.
Accessories for Heavy Duty Modular NEMA 12 Enclosures for
Flange Mounted Disconnects
Part No.
UHDM7218ECA
UHDM8418ECA
UHDM8424ECA
UHDM7218EPA
UHDM8418EPA
UHDM8424EPA
UHDM7218BPA
UHDM8418BPA
UHDM8424BPA
UHDMFTC72BK
UHDMFTC84BK
A
71.86
83.87
83.87
71.87
83.87
83.87
71.87
83.87
83.87
—
—
B
17.87
17.87
23.87
17.87
17.87
23.87
17.87
17.87
23.87
—
—
C
—
—
—
—
—
—
—
—
—
60
72
Description
Formed End Plate with
Mounting Hardware
Flat End Plate with
Mounting Hardware
Flat Barrier Plate with
Mounting Hardware
Inner Panel Bridge Kit
Technical references and CAD downloads available at www.hammondmfg.com
All dimensions in inches unless specified otherwise
Quality Products. Service Excellence.
© Hammond Manufacturing
Canada: 519.822.2960 or 905.456.3770
USA: 716.630.7030
Data Subject to change without notice
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