Siemens Sirius Innovation 3RT2 3 Pole Contactor, 3NO, 9 A, 4 kW (AC3). Contact Voltage Rating: 690 V ac. Pole and Throw Configuration: 3PST. Number Of Auxiliary Contacts: 1. Terminal Type: Screw. Width: 73mm. Length: 45mm. Maximum Operating Temperature: +60°C. Minimum Operating Temperature: -25°C. Depth: 57.5mm. MPN: 3RT2016-1AR61