JK, JS, JR, JS2, JR2, JSL, JRL series medium-sized motors are used to drive a variety of different machinery, such as fans, compressors Motor model: (JS158-4) Rated frequency: (50Hz/60HZ) Rated power: (10KW-680kW-5000KW-100MW) Rated voltage: (460-6KV-10KV-20KV) Number of poles: (2-4-18 poles)