Eaton Cutler-Hammer B100J0B Manual Motor Starter

The Eaton Cutler-Hammer B100J0B Size 0 Manual Motor Starter is a single-phase manual control device designed to start and stop small motors in compact electrical installations. Housed in a NEMA 12 enclosure, it offers indoor industrial protection for dust and light exposure while supporting 120–240V operation. The Size 0 frame indicates a small footprint suitable for tight control panels or distribution boards, and the part number B100J0B uniquely identifies this unit within the Eaton Cutler-Hammer lineup. Built by Eaton, this manual starter provides straightforward, hands-on motor control without the need for external control circuitry, making it well-suited for installations that require direct local operation in a single-phase circuit. Its combination of compact size, single-phase compatibility, and NEMA 12 enclosure makes it a practical choice for basic motor starting in smaller equipment enclosures.