Regal Rexnord
AC Drives
Regal Rexnord AC variable frequency drives(VFDs) are precision electronic motor controllers that convert fixed - frequency AC input power into adjustable - frequency, adjustable - voltage output — enabling seamless, energy - efficient speed and torque regulation of three - phase and single - phase induction motors.Engineered for commercial and heavy - industrial environments, our AC drives portfolio spans low - voltage and medium - voltage solutions compatible with both NEMA and IEC motor standards.These drives are purpose - built for plant managers, system integrators, and OEM engineers who require reliable motor control in applications ranging from pumps, fans, and compressors to conveyors, mixers, and extruders.By precisely matching motor speed to load demand, Regal Rexnord AC drives dramatically reduce energy consumption, minimize mechanical stress during startup, extend equipment service life, and deliver full - load controllability under the most demanding conditions.With sensorless vector control, built -in EMC filtering, and PLC functionality, our AC drives provide the intelligence and flexibility modern automated facilities demand.
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Trusted by Industry Leaders
Sensorless Vector Control for Maximum Torque
Delivers high starting torque and precise motor control without the need for encoder feedback, simplifying installation while maintaining demanding speed regulation requirements.
Built -in EMC Filter & Harmonic Mitigation
Integrated electromagnetic compatibility filtering reduces interference and meets global power quality standards, protecting adjacent sensitive equipment in crowded control panels.
Dual - Rated NEMA / IEC Compatibility
One drive platform serves both North American and international motor frame standards, streamlining global sourcing and simplifying spare - parts consolidation for multinational operations.
Advanced PLC Functionality Onboard
Simple sequence operations and logic control reside directly within the drive, eliminating the need for a separate micro - PLC in many applications and reducing panel footprint and cost.
Side - by - Side Installation Without Derating
Ultra - compact housing and advanced thermal management allow drives to be mounted directly adjacent to one another, maximizing valuable enclosure space in retrofit and new- build projects.
Selectable V / f & Vector Control Modes
Users choose between simple volts - per - hertz control for basic fan / pump duty and sophisticated sensorless vector control for high - performance conveying and lifting applications.
How AC Drives Improve Energy Efficiency
Regal Rexnord AC variable frequency drives deliver measurable energy savings by matching motor output exactly to process demand — no more, no less.In centrifugal pump and fan applications, applying affinity laws means a mere 20 % reduction in speed can yield energy savings approaching 50 %.Beyond the immediate kWh reduction, soft - start functionality eliminates the current inrush spikes that incur utility demand charges and stress windings and mechanical components.Facilities integrating our AC drives into HVAC, pumping, and material - handling systems consistently report payback periods of 12 to 24 months on drive investment alone, while also benefiting from extended motor life, reduced maintenance interventions, and improved process control that translates directly to higher throughput and product quality.When paired with our high - efficiency AC motors, the system - level energy performance surpasses IE4 super- premium efficiency benchmarks.
Industries & Applications for Regal Rexnord AC Drives
From oil - and - gas processing plants requiring explosion - proof motor control to food - and - beverage packaging lines demanding hygienic, washdown - rated solutions, Regal Rexnord AC drives serve an unmatched spectrum of vertical markets.In aggregate and mining operations, our medium - voltage drives control massive crusher and conveyor motors with precise torque limiting that protects downstream equipment from jams and overloads.Water and wastewater treatment facilities rely on our drives for energy - optimized pumping and aeration blower control.Automotive assembly plants use our drives to synchronize multi - motor material - handling systems.Building - services engineers specify Regal Rexnord VFDs in HVAC air - handling units, cooling - tower fans, and chilled - water pumps to meet ASHRAE 90.1 energy codes and earn LEED points.Whatever the environment, our global applications engineering team provides commissioning support, drive parameterization, and lifecycle services that ensure your variable - speed system performs flawlessly from day one through decades of round - the - clock operation.