Specifications Series PSR Voltage 208-600VAC Frequency (f) 50/60 Hz Amperage 72 Amps Ambient Temperature –25°C to 60°C Documents Softstarter Brochure (PSTX, PSE, PSR, PSRC Series) Softstarter Main Catalog Related Products Quick view PSR72-600-11 $1,070.00 MSRP: Soft Starter (72 Amps) Quick view PSRC72-600-70 $1,149.99 MSRP: Soft Starter (72 Amps) Quick view PSR37-600-70 $593.10 MSRP: Soft Starter (37 Amps) Quick view PSR16-600-70 $360.50 MSRP: Soft Starter (16 Amps) Quick view PSR12-600-70 $314.00 MSRP: Soft Starter (12 Amps)