The ABB 1SBH901074R8531 is a compact auxiliary contactor / contactor relay from ABB’s NX31E series. It is designed for switching control and auxiliary circuits in industrial electrical control systems. This block-style contactor relay features multiple auxiliary contacts and is suitable for use in automation panels, motor control centers, and auxiliary switching applications. It is typically used where a small, reliable device is required to control or signal other devices such as main contactors, relays, and indicators with a specified AC control voltage range.
