Eaton Cutler-Hammer KS360300D Breaker Trip Unit

The Eaton Cutler-Hammer KS360300D Breaker Trip Unit is a 300-amp protection module purpose-built for Type KS circuit breakers, serving as the essential trip mechanism within KS-series protective equipment. As the KS-type trip unit, it carries the protective role of monitoring current flow and initiating a circuit interruption when fault or overcurrent conditions are detected in an electrical distribution system. The KS360300D designation specifies both a 300 A rating and explicit compatibility with KS-series breakers, helping technicians confirm the correct replacement or configuration for KS installations. Used in electrical distribution installations that specify KS-series protection, this unit integrates with the KS breaker assembly to maintain standard electrical protection across Eaton Cutler-Hammer's Type KS lineup, reflecting the brand's long-standing focus on compatible, field-replaceable trip components.