Omega Products OMT1-18-56CB User Manual

Bearings

There are no sleeve
bearings in our entire line of
general purpose motors. We
use nothing but heavy-duty oversized ball
bearings on both the DE (drive end) and the
ODE (opposite drive end). It is exactly for
this reason that we can mount our motors in
the “shaft up” or “shaft down” position with
no derating. A shaft slinger keeps moisture
and contaminants from the drive end
bearing. And all of our AC motors have a
high tensile strength steel shaft.

Windings/Insulations

All of our motors have copper windings and
are manufactured with Class F insulation.

End Bells and Fan Covers

All of our end bells are heavy duty burnished
(polished) aluminum. Our fan covers are
steel, not plastic.

Junction Boxes

Our large, easy-to-wire junction boxes have
rubber dust curtains designed to keep
foreign particles from entry. These covers
are designed to come apart at an angle to
permit ease of wiring. Most motors are
convertible F1 to F2 and all are rotatable at
90 degree intervals. Conduit holes are
provided per NPT standards.

Motor Leads

All of our leads are both color coded and
numbered per NEMA MG1 Standards.

Capacitor Covers

Each motor comes equipped with a large
steel capacitor cover with a protective
rubber gasket and oversized capacitors.
The oversized start capacitor gives the
motor a much higher starting torque and
voltage range.

OMT Series

Starts at

$

97

OMT13-18-56CB,
$97, shown smaller
than actual size.

 Rolled Steel AC Motors:

0.33 to 2 HP

 NEMA 56C Frame
 NEMA Design B
 115/208 to 230 Volt
 TEFC (Totally Enclosed

Fan Cooled)

 Single-Phase
 Class F Insulation
 Premium-Grade Quality
 1.15 Service Factor
 Heavy Gauge Bolt-On,

Bolt-Off NEMA 56-Frame
Removable Base

 Motor Slide Base for

Adjustable Mounting

 Replacement Start/Run

Capacitors Available

Omegamation™ general purpose AC motors
are made by one of the leading motor
manufacturers for over 45 years, a world­class accredited supplier with a long history
of quality testing procedures and standards
performed by the finest independent testing
laboratories in the world. Our motors are
made in high quality ISO9001-certified
facilities using only the highest quality
material and manufacturing processes.
All motors are electrically tested in
sub-assembly production and again after
final assembly, and come with an ironclad
2-year warranty.

Features and Benefits of AC
Motors from Omegamation

Following are a few of the many reasons
why our AC motors provide the best
combination of quality and performance at
the lowest prices.

Nameplates

Nameplates are said to be the “Window Of
Quality” of a motor. Our AC motor
nameplates are stainless steel to reduce
corrosion and laser etched to provide
permanent markings, and include an
easy-to-read wiring diagram.

Paint

We use an electrostatically applied, rust
proof and scratch resistant paint. The paint
almost seems to become part of the steel
enclosure itself.

Certification

Our motors are CCSAUSCertified. Note the
US stamp. It means that our motor has not
only passed the Canadian Standard
Association requirements, but also the
USA’s UL and ANSI standards, thus giving
them the highest certification standards
you can have for North America. Our
certifications also include CE, CC006A,
and of course ISO9001.

Warranty

Our warranty matches the motors quality in
that it leads the industry in guaranteeing
customer satisfaction. All of our AC motors
have an ironclad two-year warranty and it is
a nameplate-only warranty. That is to say,
the customer sends us the nameplate and
we send him a new motor. No paperwork—
no delay—no waiting for credit based on a
factory inspection—and no questions
asked! Simply call our customer service
department to obtain an AR number for the
nameplate return.

Wide Range

of Motor

Sizes!

GENERAL PURPOSE
AC MOTORS

56C FLANGE, SINGLE PHASE
FRACTIONAL AND INTEGRAL HP

D-43a

D-43b

56C FLANGE MOTORS

SINGLE PHASE—115/208 TO 230 VOLT

INVERTER DUTY WITH CLASS “F” INSULATION

All ratings

Totally enclosed

Fan cooled

Steel fan

cover

Large

easy-to-wire

junction box with

rubber gasket

Manual

overload also

available for

farm

applications

Heavy gauge
bolt-on, bolt-off
NEMA 56-frame

removable base

Rolled steel

(shell) frame

Cast aluminum

end bells

Heavy duty

oversized ball

bearings and high-

tensile strength

steel shaft

Shaft slinger

keeps moisture

and contaminents

from the drive

end bearing

NEMA 56C

flange mount

Large metal nameplate with

easy-to-read wiring diagram

Large steel capacitor cover

with rubber gasket and

oversized capacitors

OMT13-18-56CB, $97, shown smaller than actual size.

D-43c

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F

AK

AJ

BF

2F

B

BB

BC

C

L

AA

J

P

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F1

AK

AJ

BF

2F2

B

BB

BC

C

L

AA

J

P

AB CD E2F12F2G H J L P R S U

165 165 330 89 62 76 127 3 9 44 208 175 13 5 16

(6.5) (6.5) (13) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.19) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

AB CD E2F12F2G H J L P R S U

165 165 351 89 62 76 127 3 9 44 216 175 13 5 16

(6.5) (6.5) (13.8) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.5) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

Dimensions: mm (in)

Dimensions: mm (in)

OMT1-18-56CB

OMT1.5-18-56CB

56C FRAME MOTORS—1 PHASE

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F1

AK

AJ

BF

2F2

B

BB

BC

C

L

AA

J

P

D-43d

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F1

AK

AJ

BF

2F2

B

BB

BC

C

L

AA

J

P

Dimensions: mm (in)

AB CD E2F12F2G H J L P R S U

165 165 315 89 62 76 127 3 9 44 208 175 13 5 16

(6.5) (6.5) (12.4) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.19) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

OMT12-18-56CB

Dimensions: mm (in)

AB CD E2F12F2G H J L P R S U

165 165 371 89 62 76 127 3 9 44 216 175 13 5 16

(6.5) (6.5) (14.6) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.5) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

OMT2-18-56CB

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F1

AK

AJ

BF

2F2

B

BB

BC

C

L

AA

J

P

N-W

U

R

S

ES

XE

XD

EE

AB

XC

A

XB

G

D

H(SLOT)

BA

2F1

AK

AJ

BF

2F2

B

BB

BC

C

L

AA

J

P

Dimensions: mm (in)

OMT34-18-56CB

D-43e

Dimensions: mm (in)

OMT13-18-56CB

AB CD E2F12F2G H J L P R S U

165 165 315 89 62 76 127 3 9 44 208 175 13 5 16

(6.5) (6.5) (12.4) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.19) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

AB CD E2F12F2G H J L P R S U

165 165 315 89 62 76 127 3 9 44 208 175 13 5 16

(6.5) (6.5) (12.4) (3.5) (2.44) (3) (5) (0.12) (0.34) (1.73) (8.19) (6.9) (0.517) (0.188) (0.625)

ES AA AB AH AJ AK BA BB BC BF XB XC XD XE

36

1

⁄2" NPT

136 49 149 114 70 4 5 10 42 94 82 72

(1.41) (5.35) (1.91) (5.875) (4.5) (2.75) (0.16) (0.19) (

3

⁄8-16) (1.65) (3.7) (3.23) (2.85)

D-43f

56C FRAME MOTORS—1 PHASE

OMT13-18-56CB OMT12-18-56CB OMT34-18-56CB

HP

1

⁄3

1

⁄2

3

⁄4

RPM/POLES 1800/4 1800/4 1800/4

VOLTAGE/PHASE 115/208 to 230V 1 115/208 to 230V 1 115/208 to 230V 1

FRAME 56C 56C 56C

FREQUENCY 60 HZ 60 HZ 60 HZ

RATED SPEED 1725 RPM 1725 RPM 1725 RPM

DUTY CYCLE Continuous Continuous Continuous

SERVICE FACTOR 1.15 1.15 1.15

AMBIENT TEMP 40°C 40°C 40°C

ALTITUDE 3300' ASL 3300' ASL 3300' ASL

INSULATION CLASS FFF

FULL LOAD AMPS 6.6/3.3 A 8.8/4.4 A 11.0/5.5 A

TEMP RISE @
FULL LOAD

80K at SF 1.15 80K at SF 1.15 100K at SF 1.15

OVERLOAD None None None

DESIGN BBB

RATED TORQUE 1.02 ft-lb 1.52 ft-lb 2.29 ft-lb

LOCKED ROTOR
TORQUE

300% 300% 275%

BREAKDOWN TORQUE 275% 275% 250%

LOCKED ROTOR
AMPS (STARTING)

31/18 A 37/21 A 55/32 A

SLIP 4.17% at full load 4.17% at full load 4.17% at full load

NO LOAD CURRENT 4.82 A 7.23 A 8.67 A

BEARINGS Ball Ball Ball

DE BEARING 6203-ZZ 6203-ZZ 6203-ZZ

ODE BEARING 6203-ZZ 6203-ZZ 6203-ZZ

ENCLOSURE TEFC TEFC TEFC

MOUNTING F-1 F-1 F-1

ROTATION CW/CCW CW/CCW CW/CCW

MOMENT OF
INERTIA (lb-ft

2

)

0.07458 0.07956 0.09505

CONNECTION DIAGRAM 115/208 to 230V—6 leads 115/208 to 230V—6 leads 115/208 to 230V—6 leads

TYPE WIRING Loose wire Loose wire Loose wire

WIRE/HOUSING Junction box Junction box Junction box

SHAFT Keyed Keyed Keyed

CAPACITOR(S) 111

CAPACITOR SIZE Ø42 x 80 mm

2

Ø42 x 80 mm

2

Ø42 x 80 mm

2

CAPACITOR INFO 200µF/125V 250µF/125V 250µF/125V

BASE/TYPE Rigid removable Rigid removable Rigid removable

PAINT COLOR Black Black Black

APPROX WEIGHT 26 lb 27 lb 31 lb

POWER FACTOR 0.62 0.63 0.65

EFFICIENCY (%) 56.0 at full load 57.0 at full load 65.0 at full load

D-43g

OMT1-18-56CB OMT1.5-18-56CB OMT2-18-56CB

11.5 2

1800/4 1800/4 1800/4

115/208 to 230V 1 115/208 to 230V 1 115/208 to 230V 1

56C 56C 56C

60 HZ 60 HZ 60 HZ

1725 RPM 1725 RPM 1725 RPM

Continuous Continuous Continuous

1.15 1.15 1.15

40°C 40°C 40°C

3300' ASL 3300' ASL 3300' ASL

FF F

13.6/6.8 A 15.2/7.6 A 20.0/10.0 A

100K at SF 1.15 110K at SF 1.15 110K at SF 1.15

None None None

BB B

3.04 ft-lb 4.57 ft-lb 6.09 ft-lb

275% 250% 250%

250% 225% 225%

75/43 A 120/65 A 150/86 A

4.17% at full load 4.17% at full load 4.17% at full load

10.84 A 12.40 A 14.21 A

Ball Ball Ball

6203-ZZ 6203-ZZ 6203-ZZ

6203-ZZ 6203-ZZ 6203-ZZ

TEFC TEFC TEFC

F-1 F-1 F-1

CW/CCW CW/CCW CW/CCW

0.1195 0.1418 0.1823

115/208 to 230V—6 leads 115/208 to 230V—6 leads 115/208 to 230V—6 leads

Loose wire Loose wire Loose wire

Junction box Junction box Junction box

Keyed Keyed Keyed

12 2

Ø42 x 80 mm

2

Ø42 x 80 mm2to Ø45 x 90 mm

2

Ø42 x 80 mm2to Ø45 x 90 mm

2

300µF/125V 250µF/165V, 40µF/450V 200µF/165V, 40µF/450V

Rigid removable Rigid removable Rigid removable

Black Black Black

34 lb 37 lb 43 lb

0.66 0.75 0.77

68.0 at full load 71.0 at full load 73.0 at full load

D-43h

MODEL NO. PRICE DESCRIPTION

OMSCFM13 $12 Start capacitor, for OMT13-18-56CB
OMSCFM12 12 Start capacitor, for OMT12-18-56CB
OMSCFM34 12 Start capacitor, for OMT34-18-56CB
OMSCFM1 12 Start capacitor, for OMT1-18-56CB
OMSCFM1.5 12 Start capacitor, for OMT1.5-18-56CB
OMSCFM2 12 Start capacitor, for OMT2-18-56CB
OMRCFM1.5 12 Run capacitor, for OMT1.5-18-56CB
OMRCFM2 12 Run capacitor, for OMT2-18-56CB
OMW56 8 Motor slide base, 56 frame
OMCSWITCHFM 12 Centrifugal switch, single-phase motors

ACCESSORIES

Ordering Example: OMW56, motor slide base for 56 frame, $8.

MODEL NO. PRICE DESCRIPTION

OMT13-18-56CB $97 56C flange rolled steel motor, 115/208-230 V, single-phase, 1/3 HP, 1800 RPM
OMT12-18-56CB 102 56C flange rolled steel motor, 115/208-230 V, single-phase, 1/2 HP, 1800 RPM
OMT34-18-56CB 111 56C flange rolled steel motor, 115/208-230 V, single-phase, 3/4 HP, 1800 RPM
OMT1-18-56CB 124 56C flange rolled steel motor, 115/208-230 V, single-phase, 1 HP, 1800 RPM
OMT1.5-18-56CB 157 56C flange rolled steel motor, 115/208-230 V, single-phase, 1.5 HP, 1800 RPM
OMT2-18-56CB 190 56C flange rolled steel motor, 115/208-230 V, single-phase, 2 HP, 1800 RPM

To Order

(Specify Model Number)

MOST POPULAR MODELS HIGHLIGHTED!

Ordering Example: OMT13-18-56CB, 56C flange rolled steel motor, 115/208 to 230 V single-phase, 1⁄3HP, 1800 RPM, $97.

OMT13-18-56CB, $97,
shown smaller than
actual size.

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

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