Designed for inverter or vector applications where up to 2000:1 constant torque speed range is required. Typical uses include: material handling, machine tools, conveyors, crane and hoist, metal processing, test stands, pumps, compressors, textile processing, and other industrial machinery needing variable speed operation. Features Include:
Class H inverter rated insulation system
Constant torque operation from 0 to base RPM rating using Vector Inverters
Constant HP operation to twice base RPM rating for 143T – 256 T frame, 1.5 x base RPM for all other sizes.
Designed for optimum performance with IGBT inverters – not designed for across the line starting
Normally closed thermostats – 1 per phase.
Continuous duty at 40° C ambient
Premium Quality Frame material – Cast-iron, Aluminum and Rolled Steel
