High Efficiency Motors: NEMA Premium® and Energy Savings Explained
Industrial motors consume nearly 70% of all electricity used in manufacturing. That’s why choosing a high efficiency motor is no longer just a good idea—it’s a necessity for cost savings, regulatory compliance, and long-term sustainability.
In this article, we explain what makes a motor “high efficiency,” what NEMA Premium® means, and how ABB’s energy-efficient motor solutions help lower operational costs.
What Are High Efficiency Motors?
A high efficiency motor is engineered to convert more electrical energy into mechanical output with less energy lost as heat. They’re designed with:
Optimized stator windings
Low-resistance copper conductors
High-grade steel laminations
Improved air-gap geometry
High efficiency motors reduce electrical losses in the rotor, stator, and core.
What Is NEMA Premium®?
NEMA Premium® is a certification program from the National Electrical Manufacturers Association. Motors that carry this label meet or exceed strict energy efficiency benchmarks defined by the U.S. Department of Energy.
Benefits of NEMA Premium® motors include:
Lower energy consumption
Reduced CO₂ emissions
Longer equipment life
Qualification for utility rebates and tax credits
Compliance with U.S. federal energy regulations
Standard Efficiency vs. NEMA Premium® Comparison
| Specification | Standard Motor | NEMA Premium® Motor |
|---|---|---|
| Efficiency | Low to mid 80% | Up to 95%+ |
| Energy Cost Savings | Minimal | Significant over time |
| Operating Temperature | Higher (more heat) | Cooler (less heat loss) |
| Motor Lifespan | Shorter | Longer |
| Regulatory Compliance | Often non-compliant | Fully compliant |
Where Are High Efficiency Motors Used?
High efficiency motors are ideal in applications with long duty cycles, high energy usage, or continuous operation:
| Industry | Application |
|---|---|
| HVAC | Fans, pumps, air handlers |
| Manufacturing | Conveyors, compressors, mixers |
| Water/Wastewater | Blowers, filtration, sludge processing |
| Mining | Crushers, conveyors, dust collection |
| Food & Beverage | Processing lines, agitators, refrigeration |
ABB High Efficiency Motors: Built for Performance
ABB offers a complete range of NEMA Premium® motors, designed to exceed DOE efficiency requirements and reduce lifetime operating costs.
Features of ABB high efficiency motors:
Optimized for constant and variable speed
Premium-grade materials
Available in TEFC, ODP, and explosion proof enclosures
Ideal for VFD compatibility and harsh environments
Backed by global support and extended warranties
Energy Savings Example: Real Numbers
Let’s say you run a 50 HP motor for 4,000 hours/year at $0.12/kWh.
Standard motor (91% efficient): ~$19,000/year
Premium motor (95.4% efficient): ~$18,150/year
Annual savings: ~$850
5-year savings: ~$4,250 (not including rebate incentives)
Get High Efficiency Motors from Industrial Gearbox Supply
Looking to lower your power bills and future-proof your equipment? We carry a full line of ABB high efficiency motors, in stock and ready to ship.
Contact us today:
Phone: (517) 858-2966
Email: sales@industrialgearboxsupply.com
Website: industrialgearboxsupply.com
Location: 3590 Scheele Dr, Jackson, MI 49202