Siemens Sirius Innovation 3RT2 3 Pole Contactor, 3NO, 80 A, 91 kW, 33 V ac/dc Coil. Contact Voltage Rating: 690 V ac. Pole and Throw Configuration: 3PST. Number Of Auxiliary Contacts: 4. Terminal Type: Screw. Width: 173.5mm. Length: 55mm. Depth: 113.4mm. Minimum Operating Temperature: -25°C. MPN: 3RT2037-1NB34-3MA0