Synchronous motor S series

ACcapacitorNEMA 23

ST and SN Series synchronous motors provide high performance in three frame sizes, NEMA 23, 34 and 42 (60, 90 and 110 mm). Resistor-capacitor kits are also available. These motors are driven economically from standard AC line voltage and the synchronous speed is related to the line frequency. Features • ST models: NEMA 23 (60 mm), three stack length options with torque ratings to 131 N-cm (185 oz-in) • SN3 models: NEMA 34 (90 mm), three stack lengths with torque ratings from 198 to 636 N-cm (280 to 900 oz-in) • SN4 models: NEMA 42 (110 mm), three stack lengths with torque ratings from 500 to 1059 N-m (715 to 1500 oz-in) • All models offer flying lead, terminal box, connector and shaft extension options • 72 rpm motor speed (with 60 Hz voltage) • Constant speed does not vary with load • 120 volt AC models • Fast starting, stopping and reversing • Can be stalled indefinitely without overheating • Standard connections include leaded, terminal box, MS connectors, rear shaft