NZMH9-250/ZM9A-90-NA Eaton Molded Case Circuit Breaker

The NZMH9-250/ZM9A-90-NA is a 250A, 3-pole molded case circuit breaker with thermal-magnetic trip functionality. It has a fixed thermal trip rating of 90A and an adjustable magnetic trip range of 400–800A. Interrupting capacity is 200kA at 240V AC and 85kA at 480V AC. The NA suffix indicates North American configuration compliance. This device operates on inverse time thermal-magnetic principles and is rated for industrial use where lower inrush current tolerance is required.