• INVERTER (VECTOR) DUTY: BLUE MAX® 2000 MOTORS • 2000:1 CONSTANT TORQUE, TOTALLY ENCLOSED, THREE PHASE MOTORS • APPLICATIONS: Designed for inverter or vector applications where up to a 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 installed in dusty or dirty environments where cast iron construction is required. • FEATURES: • MAX GUARD® Class F insulation system • Constant torque operation from 0 to base speed on vector drive, including TEFC (On volts/hertz drives, TEFC motors are limited to 20:1 constant torque) • Constant HP operation to twice base speed (143-256 frame); 1.5 times base (all others) • Optimized for operation with IGBT inverter • Bearing current protection (BCP), mounted internally • C-Face foot mount through 100 HP, as noted • Normally closed thermostats (one per phase, Class F) • Continuous duty at 40° C ambient • 1.0 service factor (“B” rise on TEBC motors) • Blue Chip Series® quality, cast iron frame and brackets • Patented “fracket” design (TEBC enclosure) • Ball bearings (roller bearing available 360 frame & larger) • Field reversible to F2 • Encoder provisions included on opposite drive end (see modification and/or accessory kits sections) • UL recognized, CSA certified, and CE mark • Three year warranty • Model 143THTN8028