NZMH9-250/ZM9-160-2000-OBI Eaton Molded Case Circuit Breaker

The NZMH9-250/ZM9-160-2000-OBI is a 3-pole molded case circuit breaker with a 250A frame size and a 160A continuous current rating. It provides instantaneous trip functionality only, with no thermal overcurrent protection. The magnetic trip threshold is adjustable between 1000 A and 2000 A. The OBI designation confirms it delivers short-circuit protection exclusively. This device meets UL and CSA standards for use at voltages up to 600 VAC and carries high fault interrupting ratings per those listings.