• INVERTER (VECTOR) DUTY: BLACK MAX • HAZARDOUS DUTY® MOTORS • 1000:1 CONSTANT TORQUE, EXPLOSION PROOF, THREE PHASE • CLASS I AND II (GASES AND DUST), GROUPS C, D, F & G, TENV MOTORS • APPLICATIONS: For use in material handling, machine tools, conveyors, crane & hoist, and other variable speed applications requiring up to 1000:1 constant torque speed range, to be installed in hazardous environments as defined by the motor’s explosion proof class and group rating. Refer to the General Information sections contained in this catalog for information on explosion proof classifications. Consult the National Electrical Code and your local regulations for the proper selection of motors in hazardous locations. • FEATURES: • MAX GUARD® Class F insulation system • Constant torque operation from 0 to base speed on vector drive • Constant horsepower operation up to twice base RPM • Continuous duty at 40ºC ambient • Optimized for operation with IGBT inverter (NEMA® Design A) • Normally closed thermostats (one per phase, Class F) • Ball bearings • Top mount (F3) conduit box included, shipped loose • No encoder provisions provided • Meets temperature code T3B • UL listed, under file #E12044 • CSA certified, under file numbers LR47504 and LR21839 • Three year warranty • Model 056H17E5303