*For use on all single-phase 208V,230V,265V A/C, refigeration and heat pump compressors-reciprocating, Scroll rotary *For all reciprocating , scroll & retary compressors *1-3 HP-Max torque-For all metering devices *capacitor capacity: 108--130MFD/330VAC 50/60Hz *Relay with 50A switching capability