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Features:
• Inverter Duty: Corona free with conductive bearing grease
for reliable use with today’s inverters.
• 70°C (158˚F) Max Amb: UL and CSA rated for 70°C (158˚F)
max ambient temperatures.
• Class F Insulation: UL and CSA approved, non-hygroscopic
class F insulation system achieves superior dielectric
strength for long thermal life.
™
• VCM
: Voltage change module makes changing voltages
quick and easy.
• Rigid Base: Easy to remove 56H rigid base provides multiple
mounting options.
• Enclosed Shaft End: Shaft up mounting.
• Electrically Reversible: Easy rotation change with quick
connect terminal board.
• High Temperature: Automatic overload protector reduces
nuisance trip outs.
• Windings: 100% copper windings and optimum winding
design minimize losses resulting in higher efficiencies,
increased motor life and lower operating cost.
• Efficiency:
• Bearings: Heavy duty, double sealed, anti-friction, high
Conservationist™: energy efficient 3 phase designs
.
performance ball bearings for long reliable life. Bearing is
locked on opposite shaft end.
• Bearing Protection: Large high temperature nylon glass
filled shaft slinger keeps water and dirt out of the motor
bearings.
• Positioning Lugs: Makes easy work of belly band mounting.
• Rotor Coating: Corrosion resistant coating on rotor core for
longer motor life.
• Drain Holes: Allows quick draining of moisture build up.
• Mounting Bolts: Heavy duty #10-32 bolts with 1.0” extension.
• Fasteners: Extra mounting nuts are supplied to allow for
quick installations.
• High Torque: Ultra-high-torque designs handle even the
heaviest loads.
• Approvals: UL recognized and CSA certified.
Class F Insulation
Removable Rigid Base
Inverter Duty
VCM
™
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• Inverter duty
• Removable 56H rigid base
• VCM™- Voltage Change Module
• 70°C (158˚) max ambient
• Class F moisture resistant insulation
• Automatic overload protector
Specifications:
• Large water slinger
• Double sealed ball bearings
• Positioning lugs for easy
belly-band mounting
• Shaft up mounting
• Quick connect design
• Energy-efficient three phase design
• Conductive bearing grease
for inverter applications
• 50/60 Hertz
• Three phase
• Continuous duty, air over
Note: It is the responsibility of the installer to properly adjust the drive to the motor for the specific applica-
tion. The correct volts/Hz settings are application specific and unique to each motor. Failure to perform proper
set up can lead to substandard performance and /or premature failure of the system components.
Class F Insulation - 70˚C (158˚F) Max Ambient
Stock No. HP Volts Amps RPM Speeds Frame Size Rotation Type Bearings “C” Dim. Shaft Wt. (lbs)
H1050 1.0 460/208-230 2.2/4.0-4.4 1140 1 56H Reversible Three Phase Ball 16.63 5/8” x 6.0” 29
H1051 1.5 460/208-230 2.9/5.8-5.8 1140 1 56H Reversible Three Phase Ball 17.63 5/8” x 6.0” 38
H1052 2.0 460/208-230 3.7/7.0-7.4 1140 1 56H Reversible Three Phase Ball 18.63 5/8” x 6.0” 45
H1053 1.0 460/208-230 2.6/5.0-5.2 850 1 56H Reversible Three Phase Ball 18.63 5/8” x 6.0” 45
H1054 1.5 460/208-230 3.6/6.7-7.2 850 1 56H Reversible Three Phase Ball 19.13 5/8” x 6.0” 50
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Cross Reference
A. O. Smith Marathon* Emerson* G.E.* Fasco* Leeson* Baldor* Mars*
Belly Band
H1050 X502 1818 K379 D6608 111147 CFM3156A 3189
H1051 X503 1819 K380 D6610 111148 CFM3166A 3190
H1052 X509 8987 N/A N/A N/A N/A N/A
H1053 X507 1828 K1482 N/A N/A N/A 1482
H1054 X530 N/A N/A N/A N/A N/A N/A
Rigid Base
H1050 X513 1820 K1485 N/A 115778 N/A N/A
H1051 X523 1821 K1486 N/A 115779 N/A N/A
H1052 X525 1822 N/A N/A N/A N/A N/A
H1053 X528 N/A N/A N/A N/A N/A N/A
H1054 X531 N/A N/A N/A N/A N/A N/A
*Not Inverter Duty
Your Authorized Distributor is:
RoHS
Compliant
Electrical Products Company
531 North Fourth Street
Tipp City, OH 45371
A DIVISION OF A. O. SMITH CORPORATION
Copyright © 2009 A. O. Smith Corporation
NOW AVAILABLE! FAX OR PHONE YOUR ORDER TODAY!
Phone: (800) 672-6495
Fax: (800) 468-2062
www.aosmithmotors.com
Bulletin #6028A 2/09
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