The US Motors UN12V2AC (Model J063BGJ0135015B) is a 0.5 HP three-phase polyphase - speed definite purpose ACCU-SERIES motor rated for 208-230/460 V, 60 Hz, 1725 RPM. It features a TENV enclosure, a 56 frame and c-face/base mounting. Additional features include three phase totally enclosed fan cooled (TEFC), UNIMOUNT inverter duty, 20:1 (3-60 HZ) speed range variable torque and 5:1 (12-60 hz) speed range constant torque.