Manual Motor Starter, Rotary, 70mm, Amps AC 70 to 90, Max. Voltage 600, NEMA Type Open, Description/Special Features Thermal-Magnetic Trip Mechanism, Class 10, Ambient-Compensated, Phase-Loss Sensitive, Number of Poles 3, Starter Type Maintained, Height (In.) 6.50, Width (In.) 2.76, Depth (In.) 6.73, 7-1/2, 20, 25, 30, 60, 75, Standards UL,CSA,IEC.