NZM9-250/ZM9-160-2000-OBI Eaton Molded Case Circuit Breaker

The NZM9-250/ZM9-160-2000-OBI is a 3-pole molded case circuit breaker with a 250A frame size and a continuous current rating of 160A. Its magnetic trip threshold is adjustable between 1000A and 2000A. It carries UL and CSA certification and has a standard interrupting rating. The OBI variant provides short-circuit protection only and is intended for application-specific configurations where overload protection is handled externally. This device does not include thermal or combined thermal-magnetic trip functionality.