The ABB MCB-10B Modular Contact Block is a front mounting normally open (NO) switch designed for electrical equipment and supplies. With a maximum amperage of 10A and a coil voltage of 690V, this contact block operates on a 1-phase AC current type. It features a single pole, single throw (SPST) contact configuration and is suitable for general purpose use. Manufactured by ABB, this contact block is part of the MCB-10 series and is suitable for a variety of industrial applications.