Allen-Bradley 156-B45AB1 is a 45 A solid-state contactor (SCC) used to switch AC loads in single-phase control circuits. It accepts line voltages from 24 to 230 VAC and a 5 to 24 V DC control signal, enabling operation in a wide range of control panels and motor-control applications. This model belongs to the 156-B series and was discontinued on August 31, 2017, with the direct replacement 156-C1P43NCD recommended for compatible applications.
