Baldor-Reliance® RPM AC Totally Enclosed Variable Speed AC Motors
The ABB Baldor-Reliance® RPM AC series offers rugged, totally enclosed variable speed AC motors designed for demanding industrial applications requiring full torque at zero speed and superior performance under harsh conditions. These motors deliver compact power, optimized efficiency, and precision control, making them ideal for industries such as paper, rubber, metals, and machine tools.
Key Points
- Provides full torque from zero to base speed when paired with ABB Direct Torque Control or equivalent high-performance inverters.
- Offers 1000:1 constant torque and 2:1 constant horsepower operation for broad speed range flexibility.
- Rugged construction with laminated steel frames and cast iron brackets for durability in demanding environments.
- Multiple enclosure options (IP44–IP56) and ISO 9001-certified manufacturing ensure performance and quality.
- Compact design—up to three frame sizes smaller than comparable NEMA motors, delivering higher power density.
- Available in induction and permanent magnet rotor designs, with PM versions achieving IE5 ultra-premium efficiency.
- Integrated shaft grounding brush and thermostats on each phase for enhanced reliability and protection.
- Designed for easy integration with ABB Ability™ Smart Sensors for condition monitoring and data access.