Regal Rexnord
AC Motors - NEMA
Regal Rexnord NEMA AC motors are the rugged, standard - frame electric motors that power the backbone of North American industry — pumps, fans, compressors, conveyors, and machine tools in manufacturing facilities, water treatment plants, aggregate operations, and HVAC systems.Built to NEMA MG 1 standards with cast - iron, rolled - steel, and stainless - steel frame options, these motors deliver the reliability, efficiency, and electrical performance that plant engineers and OEM equipment builders depend on when specifying a motor that must endure years of continuous operation in demanding industrial environments.Our Marathon, LEESON, and Lincoln NEMA motor lines span fractional to multi - hundred horsepower ratings, with enclosures from Open Drip - Proof(ODP) to Totally Enclosed Fan - Cooled(TEFC) and washdown - duty designs for food, beverage, and pharmaceutical processing.Premium efficiency models meet or exceed NEMA Premium and DOE regulatory standards, while our severe - duty motors incorporate Class H insulation, shaft seals, and corrosion - resistant hardware that extend service life in the most punishing plant - floor conditions.From off - the - shelf general - purpose motors to application - specific mill - and - chemical duty designs, Regal Rexnord NEMA motors provide the exact balance of purchase cost, operating efficiency, and lifecycle reliability that drives total cost of ownership.
Send an Enquiry
We'll get back to you on WhatsApp.
Trusted by Industry Leaders
NEMA Premium Efficiency Certified
Meet or exceed NEMA Premium efficiency levels, reducing electricity consumption by 2 % to 5 % over standard - efficiency motors — often paying back the cost premium in under 12 months of continuous operation.
Severe - Duty Construction for Harsh Environments
Cast - iron frames, IP55 / IP56 ingress protection, Class H insulation, and stainless - steel nameplates and hardware withstand moisture, dust, chemicals, and vibration without premature failure.
Inverter - Duty Rated for VFD Operation
Marathon inverter - duty motors feature spike - resistant magnet wire and shaft grounding provisions(up to 100: 1 constant - torque speed range) for long life on variable - frequency drives.
Broad Horsepower & Frame Range
Stock availability from ¼ HP to 500 + HP, frame sizes 48 through 6809, covering virtually every industrial replacement and OEM requirement without extended lead times.
Multiple Enclosure & Mounting Types
ODP, TEFC, Explosion - Proof, and Washdown All - In - One designs with rigid, C - face, and D - flange mounting options for compatibility with every major pump, gearbox, and fan OEM.
North American Manufacturing & Distribution
Manufactured in ISO 9001 facilities with continent - wide distributor inventory, ensuring fast delivery and local application support for planned and emergency motor needs.
NEMA vs.IEC Motors: Selection Criteria for Global Applications
NEMA motors define the North American standard, with frame sizes, shaft dimensions, and performance characteristics governed by NEMA MG 1. IEC motors, defined by IEC 60034, serve international markets.For facilities and OEMs operating globally, the decision between NEMA and IEC motors involves supply chain, interchangeability, and electrical - standards considerations.NEMA motors offer a broader selection of service factors and are typically specified with a 1.15 service factor for continuous duty, providing an inherent overload margin that IEC motors often require as a separate specification.NEMA frame dimensions also provide more flexible mounting arrangements without the need for adapters.However, IEC motors offer metric shaft dimensions and flange mountings that match European - driven equipment standards.Regal Rexnord provides both NEMA and IEC AC motor lines, enabling global users to standardize on a single manufacturer for both North American and international installations, with common quality, warranty, and service support worldwide.
Energy Efficiency & Motor Replacement Economics
Electric motor energy consumption can represent over 90 % of the lifecycle cost of the motor — far exceeding the purchase price.Replacing an operating standard - efficiency motor with a NEMA Premium efficiency motor saves energy every hour of operation, delivering immediate and ongoing cost reduction.Utility rebates in many territories further offset the replacement cost.Regal Rexnord offers motor - efficiency audit services that identify the facility’s highest - operating - hour, lowest - efficiency motors, quantify the energy - savings and payback period for upgrading to NEMA Premium, and manage the replacement logistics to minimize production disruption.The result is a documented energy - cost reduction that supports corporate sustainability goals and delivers a two - year - or - less return on investment in virtually every continuous - operation application.