Eaton Corporation Plc has unveiled the new 310+ mining molded case circuit breaker, or MCCB, series, designed to enhance safety and protect equipment in mining applications. The breakers are engineered for maintenance safety, featuring integrated arc flash protection and Eaton Electronic 310+ trip units, which is designed to clear faults faster than microprocessor-initiated devices. Built for harsh mining environments, the 310+ Mining MCCBs provide trailing cable-specific settings and configurations to cover trailing cable sizes with just three trip units to minimize panel design time and reduce inventory requirements.

The circuit breaker trip units are interchangeable between 600 V and 1000 V frames. Available features on the new mining MCCB include adjustable curve shaping, arc flash reduction, diagnostics, and system monitoring and communications. Additionally, fault information can be captured to provide trip cause indication, and a larger dial with a hard stop provides easier access without the risk of 360-degree rotation.