11/19/2025
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.
The V*S Master RS, available from ½ to 5 horsepower (hp), 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.
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.
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.
About ABB
ABB is a global technology leader in electrification and automation, enabling a more sustainable and resource-efficient future. By connecting its engineering and digitalization expertise, ABB helps industries run at high performance, while becoming more efficient, productive and sustainable so they outperform. The company has over 140 years of history and more than 105,000 employees worldwide. For more information, visit https://global.abb.
About ABB Motion
ABB Motion, a global leader in motors and drives, is at the core of accelerating a more productive and sustainable future. With its digitally enabled drives, motors and services, the company supports its customers and partners to achieve better performance, safety and reliability. Building on over 140 years of domain expertise in electric powertrains, its more than 22,000 employees across 100 countries learn and improve every day. For more information visit, https://new.abb.com/about/our-businesses/motion.
