Siemens Solid State Overload Relay NO/NC (Auxiliary), 50 A, 50 A. Pole Configuration: 3P. Range: Sirius Innovation. Contact Voltage Rating: 690 V. Mounting Style: Direct Mount. Series: 3RB3. Number Of Auxiliary Contacts: 2. Terminal Type: Screw. Reset Method: Automatic, Manual. Length: 55mm. Depth: 103.3mm. Width: 83.3mm. Maximum Operating Temperature: +60°C. MPN: 3RB3036-1UB0