Pump Start Relay Electrical Specifications Models Single Phase 3 Phase** Max. Full Load Amps Max. Resistive Amps Coil VA Coil VA kW at 120 VAC kW at 230 VAC kW at 230 VAC Inrush (Amps) Holding (Amps) PSR-22 1.5* 2.2* N/A 30 40 33 (1.38) 8 (0.33) PSR-52 2.2 5.6 N/A 40 50 65 (2.71) 7.5 (0.31) PSR-53 2.2 5.6 7.5 40 50 65 (2.71) 7.5 (0.31) Note: *Approximate power** 3 phase power at 230 VAC is not commonly available in some international markets. Check local electrical codes for compatibility.