Eaton A219307 is part of the Eaton E2 Distribution System family of products, designed to meet the high-output switching, distribution and monitoring requirements of commercial, industrial and residential buildings. The Eaton E2 Distribution System offers a comprehensive range of products including circuit breakers, disconnects, switchboards, switchgear and motor control centers. The Eaton A219307 is a type UL-listed, high-performance circuit breaker manufactured for use in residential buildings, commercial buildings and industrial buildings. The Eaton A219307 is rated for 277/480 volts, with a maximum interrupting capacity of 10000 amperes. The Eaton A219307 has a conventional thermal hysteresis current-limiting characteristics for maximum protection and minimum downtime. The A219307 has a compact, easy-to-install design, featuring interchangeable MCCBs and supplemental surge protection built into the breaker itself.