US Motors Definite Purpose Direct Current Permanent Magnet Catalog Page
Denite Purpose Direct Current
UNIMOUNT®
Permanent Magnet
GENERAL PURPOSE
APPLICATIONS:
For general industrial equipment including fans, blowers, compressors, pumps and direct connected equipment.
C-FACE
GENERAL PURPOSE
FE ATUR E S:
• Totally Enclosed Fan Cooled
®†
• NEMA
• Removable Feet On Rigid Base Units
C-Face
• 20:1 Constant Torque Speed Range
• 40°C Ambient
• Two Armature Leads & No Field Connections Are Required
PM, SWD
GENERAL PURPOSE
HOSTILE DUTY
®
HP
1/4 1750 2050 56C 90 G636 PM DS-4A 19
1/3 1750 2050 56C 90 G637 PM DS-4A 24
1/2
Base
Speed
Top
Speed
Frame
Armature
Volts
Catalog
Number
Typ e
1750 2050 56C 180 G641 PM DS-4A 24
1750 2050 56C 90 G638 PM DS-4A 23
GENERAL PURPOSE
GENERAL PURPOSE
GENERAL PURPOSE
GENERAL PURPOSE
CORRO-DUT Y
®
841 PLUS
OPEN DRIPPROOF
HAZARDOUS LOCATION
3/4
DC Motor Dimensions - Permanent Magnet Motor, Totally Enclosed Fan
1750 2050 56C 180 G642 PM DS-4A 27
1750 2050 56C 90 G639 PM DS-4A 28
C
AG AH
BB
P
2F
2F2
B
EV
BA
ES
U AK
N-W
AA - SIZE
CONDUIT
AC
BD
H-4
HOLES
AJ DIA
E
2E
A
Discount
Symbol
BF-4
HOLES
Ship Wt.
(lbs.)
Notes
A D E 2E 2F H N-W U-0.0005 AA AJ AK BA BD BF
6-1/2 3-1/2 2-7/16 4-7/8 3 11/32 1-7/8 5/8 1/2 5-7/8 4-1/2 2-3/4 6-1/2 3-8/16 3/16 3/16
AUTOMOTIVE DUTY
GENERAL PURPOSE
M/N HP ENCLOSURE B C O P* AB AC AG AH BB EV
G636 1/4 TEFC 3-15/16 10-15/16 7-1/2 5-1/2 4 3 8-7/8 2-3/32 5/32 15/32
G637 1/3 TEFC 3-15/16 11-29/32 7-1/2 5-1/2 4 3 9-27/32 2-3/32 5/32 15/32
DUTY
COOLING TOWER
G638 1/2 TEFC 3-15/16 11-29/32 7-1/2 5-1/2 4 3 9-27/32 2-3/32 5/32 15/32
G641 1/2 TEFC 3-15/16 11-29/32 7-1/2 5-1/2 4 3 9-27/32 2-3/32 5/32 15/32
G639 3/4 TEFC 3-15/16 13-3/32 7-1/2 5-1/2 4 3 11-1/32 2-3/32 5/32 15/32
G642 3/4 TEFC 3-15/16 13-3/32 7-1/2 5-1/2 4 3 11-1/32 2-3/32 5/32 15/32
LOCATION
HAZARDOUS
C-FACE
Dimension “D” will never be exceeded, but may vary from values shown.
MOTORS
When exact dimensions are required, shims up to 1/32” may be necessary.
All rough casting dimensions may vary by 1/4” due to casting variations.
*Largest motor width. All dimensions in inches.
MOTORS AND DRIVES
VARIABLE SPEED
67 usmotors
Asset Condition Monitoring Solution to visualize* health and performance data
ES
MINSQKEY
Refer to Page 109
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