V*S Master RS

V*S Master RS series combines inverter duty reliability with vector duty precision, delivering the torque, control and durability you expect from a V*S Master motor—now in a rugged, rolled steel design.

Practical. Economical. Built to perform.

The V*S Master RS Series combines the proven performance of ABB Baldor-Reliance inverter and vector duty technology with a rugged rolled steel design. Engineered specifically for inverter power, these motors feature our advanced inverter-duty insulation system—exceeding NEMA MG1 Part 31 recommendations—to eliminate corona discharge, a leading cause of premature insulation failure. The result: longer motor life, dependable performance and a cost-effective solution for demanding variable-speed applications.

Technical data

V*S Master RS motors deliver full torque from zero to base speed, constant horsepower above base speed and internally mounted shaft grounding for optimized variable speed performance.

Up to 5Hp

Power range 1/2-5Hp (.37-3.7kW).

Torque range 1000:1

constant torque from 0 to base; 150% available torque.

Insulation Class H

for high heat tolerance and longer motor life.

Internally mounted Shaft ground

for optimized variable speed performance.

Thermostats 3

normally closed thermostats are standard (1 N.C. per phase).

Encoder 1024 PPR

included as standard for all V*S Master RS motors.

Explore the key features and benefits

V*S Master RS motors are engineered for vectory duty operation, delivering precise, reliable torque and power from zero to above base speed, enhancing efficiency, control and motor longevity.

Inverter Duty

Advanced insulation system designed exclusively for operation on inverter drives with internally mounted shaft grounding device.

Continuous torque

Full-load (1000:1 constant) torque from zero to base speed, ideal for variable-speed applications.

Encoder provisions

Motors include pre-drilled and tapped shaft provisions for encoder mounting, with hollow-shaft encoder kits available from stock.

Robust design

Rolled steel construction ensures durability and vibration resistance for reliable industrial performance.

Drop-in design

Available in standard NEMA frames for both replacements and new installations. Perfect for constant-power applications such as winders, extruders and more.

Corona-free insulation

Protects the motor from electrical stress and voltage spikes, ensuring longer life and reliable performance with inverter drives.

Customizable

Many modifications available through Mod-Ex production or stock modification.

Related Documents

ABB Baldor-Reliance V*S Master motors

Standard NEMA frame variable speed motors

Designed to provide full load torque continuously from zero to base speed making them ideal for inverter duty applications.Built in NEMA frames for drop-in replacement and new application.

Improving performance and efficiency with an AC conversion

Success Story

AC motors offer advantages over DC motors, including reduced maintenance and operating costs. A DC-to-AC conversion helped Domtar minimize downtime and save money while becoming more efficient.

V*S Master Motor saves thousands in avoidable costs

Documented savings

Customer saved money by upgrading a crusher application with an induction NEMA V*S Master motor.

Related videos

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Continuous full-load torque from zero to base speed. Drop-in NEMA replacements with inverter-duty insulation that exceeds MG1 Part 31—built to perform and last.

VS Master Vector Duty

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Extreme control with a 1000:1 constant-torque range. Rugged severe-duty design with encoder-ready options for precise performance in the toughest applications.

RPM AC

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The RPM AC Inverter Duty motor is most suitable for tough variable speed industrial applications where high performance and power density (compact size and weight) is most important.

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