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General Purpose AC Motors, Industrial Duty Three-Phase
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Cast Iron AC Motors: 1 to 5 HP
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NEMA T Frame
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NEMA design B
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203 to 230/460 Volt, Three-Phase
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TEFC (Totally Enclosed Fan Cooled)
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3600, 1800, and 900 RPM
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Class F Insulation
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1.15 Service Factor
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Industrial Duty
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Premium-Grade Quality
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Inverter-Duty Capable
• Variable Torque = 5:1 Speed
Turndown
• Constant Torque = 2:1 Speed
Turndown
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Electrically reversible
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C-flange and D-flange mounting kits available
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Motor slide bases for adjustable mounting
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2-Year Warranty
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View related products - Drives & Motors
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Omega general purpose AC motors
are made by one of the leading motor
manufacturers for over 45 years, a world-class
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 subassembly
production and again after final
assembly, and come with an ironclad 2-year warranty.
Features and Benefits of AC Motors from Omega
Following are a few of the many reasons
why our AC motors provide the best combination
of quality and performance at the lowest prices.
BEARINGS There are no sleeve bearings in our entire
line of general purpose motors. We use nothing but premium quality SKF brand
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. And all of our AC motors have a
high tensile strength steel shaft.
SEALS Our motors are protected from moisture and
contaminants by the use of V-ring shaft seals on both the drive-end
and the opposite drive-end. These motors are name plated IP54 Enclosure.
WINDINGS / INSULATION All of our motors have copper windings
and are manufactured with Class F insulation. This 155°C insulation system
gives us inverter duty capability:
A. Variable Torque Applications:
(Basically, fans and blowers)
5 to 1 speed turndown permitted
B. Constant Torque Applications:
(Basically, all but fan and blower loads)
2 to 1 speed turndown
CASTINGS Our motors are unicast construction, meaning the
entire frame is cast iron in one piece, as opposed to two-piece castings that
are welded in the middle of the main frame or at the point where the feet are
attached to the frame. This unfortunate, cost cutting practice is becoming more
prevalent in our industry.
METALLURGY Our motors use only high density, FC200
cast iron frames on all sizes starting at 1 HP. This assures rapid heat transfer
from the core of the motor into the motor's fins from which point it is dissipated
by the motor's fan. Only a select few use this high density iron which results
in longer insulation and bearing life. Many competitors use less expensive
FC150 or even FC100 iron.
MOUNTING FEET Our motors use full body length,
solid mounting feet. These feet are cast into the frame of the motor. Many
competitors have little tab-like feet that stick out like a dog's paw with holes
in them. Our body-length feet handle the vibration better and provide
better overall strength.
FAN COVERS A unique fan and fan cover design forces the
air through the valleys between the extra thick, extra deep cooling ribs. This
provides much better cooling than the typical fan design that blows air off
the end bell and out into space. Steel fan covers are provided as standard.
JUNCTION BOXES Our large, easy-to-wire junction boxes
are cast iron and 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.
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.
CERTIFICATION Our motors are CCSAUS Certified.
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.
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† All dollar amounts on this site are shown in US currency.
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| Related Links -
Related Products
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| Related Products |
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OMT Series: |
| General Purpose AC Motors, 56C Flange, Single Phase, Fractional and Integral HP |
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OMAT Series: |
| General Purpose AC Motors, 56C Frame, Three-Phase, Fractional and Integral HP |
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OMDC-PU-E Series: |
| AC or DC Motor Speed Sensors from 1- 20 pulses per revolution to monitor speed and direction. |
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ZB SERIES Rotary Encoder: |
| Industrial Duty Rotary Encoder with Single Channel or Quadrature Output - Can be Converted to Industrial Length Sensor |
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MTR-1: |
| Motor Rotation Indicator 2 Clockwise or Counter-Clockwise Motor Rotation |
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