Vector-duty, Variable-speed AC Motor

ABB launched the Baldor-Reliance V*S Master RS to give operators a cost-competitive, variable-speed solution for vector-duty applications. Its rolled-steel frame provides dependable durability in a lightweight, economical design.

An advanced insulation system supports reliable performance across a wide speed range. The V*S Master RS delivers an efficient motor platform that is ideal for applications that require constant torque or a wide speed range, including extruders, conveyors, cranes and hoist, winders, web processing, process control, test stands, and centrifugal pumps and fans.

ABB

Compact and versatile

The V*S Master RS, available from ½ to 5 horsepower, uses a rugged rolled-steel frame and Class H insulation to deliver 1000:1 constant-torque and full vector-duty performance. Its compact, lightweight design fits conveyors, fans, pumps and other variable-speed, constant-torque applications, especially where cast-iron frames do not fit.

The motor supports a broad range of speeds, reducing the need for mechanical speed reducers or multiple motor sizes. Its high overload torque handles heavy startup loads, jams and sudden load spikes without stalling or tripping the drive, which improves uptime and process stability.

ABB

Built-in protection for longevity

The V*S Master RS uses Class H insulation, internal shaft grounding and three thermostats—one per phase—to protect against thermal overload. The motor exceeds NEMA MG1 Part 31 requirements for inverter-fed applications and prevents corona discharge that shortens insulation life. These features help extend service life in demanding environments.

Cost-competitive value

Built on the proven ABB Baldor-Reliance V*S Master platform, the RS Series delivers market-leading motor technology in an economical package.  It pairs seamlessly with variable-speed drives and delivers fast dynamic response, efficient operation and consistent performance across wide speed ranges.

ABB

Key features:

•        ½ - 5Hp totally enclosed, non-ventilated (TENV) rolled steel (20 Hp coming soon)

•        C-face foot-mount and footless configurations

•        1000:1 constant-torque operation

•        Vector duty with 1024 PPR rotary encoder included

•        Class H insulation as standard

•        Shaft grounding standard

•        Three thermostats, one per phase

•        Three-year warranty

ABB supports customers with preventive servicing, spare-parts availability and a global service network. More than 50 ABB Baldor-Reliance service workshops, over 1,200 certified field service engineers and more than 600 service partners help maintain peak equipment performance. ABB prioritizes safety and quality to help customers meet sustainability goals, maximize uptime and reduce total cost of ownership.