Siemens 3RT20251AG20 IEC Power Contactor Non Reversing, 3 Poles, 17 A, 110V AC Coil, 1NO 1NC, S0 Frame Size 21A271 Portable Electric Heater Portable Electric Heater Handle Effort 77 lb Displacement per Stroke 1st Stage 1 Contact Configuration 1NO 1NC Hz 50 60 Standards REACH Art 33 Surface Minimum Operating Temperature 13 Degrees F Auxiliary Contact Form 1NO 1NC Number of Auxillary Contacts 2 Terminal Connection Type Screw Terminals Horsepower @ Three Phase 480V AC 10 hp Full Load Current Resistive 40 A Horsepower @ Three Phase 208V AC 3 hp Maximum Voltage Rating 690V AC Contactor Style IEC Response Time 10 to 18 msec (AC Operation Closing Delay Operation Opening Delay Operating Times for 1