The 5000 family of inverter-duty AC induction and DC industrial motors complements our drives through 1, 000 hp ( 750 kW) AC and 500 hp ( 375 kW) DC. 1. 5100 AC Induction Motors ; The 5100 series of motors are inverter-duty totally-enclosed, fan-cooled ( TEFC) units. They are intended for operation from Unico AC drives in general-purpose applications up to 500 hp ( 375 kW) . 2. 5200 AC Induction Motors ; The 5200 series of motors are inverter-duty totally-enclosed, non-ventilated ( TENV) and drip-proof, force-ventilated ( DPFV) units. They are intended for operation from Unico AC drives in high-performance applications up to 1, 000 hp ( 750 kW) . 3. 5250 DC Industrial Motors ; The 5250 series of motors are drip-proof, force-ventilated ( DPFV) units intended for operation from Unico DC drives in industrial applications up to 500 hp ( 375 kW) .