UL489 circuit breakers are miniature molded case circuit breakers (MCCBs) used where space is limited. These breakers are usually found in commercial, industrial, and residential electrical distribution systems. They provide essential overcurrent protection, guarding electrical circuits from damage caused by overloads and short circuits.  These breakers are compliant with the National Electrical Code (NEC).

These mini circuit breakers are designed and tested to meet stringent UL489 safety requirements. They provide reliable performance in demanding environments. Unlike supplementary protectors, UL489 circuit breakers can serve as the sole overcurrent protection device on a circuit. This makes them perfect for specific applications such as panel boards, switchboards, and motor control centers. They're engineered to interrupt fault currents safely and reliably, protecting both equipment and personnel from electrical hazards.

The IMO range of UL 489 Approved Miniature Circuit Breakers have been designed for protection of electrical installations against overload and short circuits and are manufactured in accordance with UL 489.

UL 489 Mini Circuit Breakers (MCB) Features: