Z-LAR/8-O is a type of medium-voltage air circuit breaker developed by Eaton. It is designed to provide fault protection, circuit interruption, and insulation coordination across a range of applications. It is certified under the UL 489, IEC/EN 60947-2, and IEC/EN 62271-100 standards. The Z-LAR/8-O utilizes Eaton’s unique design with a version of electronic trip release, a 3-terminal Current Sensor, and a versatile mechanical enclosure that can be used in multiple applications. Eaton’s innovative design also features an additional breaker/reset switch, built-in communications ports, and an optional remote control/monitoring box. It is available in a variety of ratings up to 6300 Amperes.