Siemens – 3RT1535-1BW40 – 40 A 4-Pole Power Contactor (2 NO + 2 NC)

The Siemens 3RT1535-1BW40 is a robust power contactor designed for industrial motor control applications. It supports AC-3 duty at 40 A, features 4 poles, and includes 2 normally open and 2 normally closed auxiliary contacts. It’s built in a Size S2 screw-terminal package and is ideal for replacements or legacy systems requiring Siemens 3RT equipment.