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 $1,025.86 MSRP: Soft Starter (72 Amps) Quick view PSRC72-600-70 $1,077.16 MSRP: Soft Starter (72 Amps) Quick view PSR37-600-70 $568.69 MSRP: Soft Starter (37 Amps) Quick view PSTX210-600-70 $3,888.23 MSRP: Soft Starter (192 Amps) Quick view PSE85-600-70 $1,552.17 MSRP: Soft Starter (80 Amps)