The 3RT2035-3KB40 is a 3 - pole AC contactor from Siemens' SIMATIC 3RT2 series. It has a rated thermal current of 32 A and a rated operational voltage ranging from 220 to 690 V AC (50/60 Hz), suitable for switching loads up to 15 kW at 400 V AC. The coil voltage is 24 V DC, consuming 11 W when holding and 20 VA during in - rush.