Baldor-Reliance® V*S Master Motors


ABB’s Baldor-Reliance® V*S Master motors are premium inverter duty AC motors engineered to deliver full torque from zero to base speed. Designed for long life, flexibility, and durability, these NEMA frame motors are ideal for demanding variable speed applications across industries.

Key Points

  • Inverter Duty Design: Provides continuous full-load torque from zero to base speed for precise variable speed control.
  • Durable Insulation System: Exceeds NEMA MG1 Part 31 standards with inverter duty insulation to prevent corona and extend motor life.
  • Broad Availability: Offered in standard NEMA frames 56–449T, with options from 1/3 to 300 Hp and up to 500 Hp for custom builds.
  • Thermal Protection: Equipped with three normally closed thermostats and Class F or H insulation.
  • High Overload Capacity: Offers 200% overload torque for one minute below base speed and constant horsepower operation up to 1.5× base speed.
  • Application Versatility: Ideal for extruders, conveyors, cranes, winders, web processing, pumps, fans, and more.
  • Advanced Features: Includes encoder provisions, insulated bearings, re-greaseable bearings, oversized conduit box, and stainless-steel nameplate.
  • Mod-Express® Options: Enables quick turnaround with configurable modifications to meet specific application needs.