NZMH9-250/ZM9A-150-NA Eaton Molded Case Circuit Breaker

The NZMH9-250/ZM9A-150-NA is a 3-pole molded case circuit breaker rated at 250A with thermal-magnetic trip functionality. It provides a fixed thermal trip setting of 150A and an adjustable magnetic trip range of 600–1200A. Its interrupting capacity is 200kA at 240V AC and 85kA at 480V AC. The NA suffix indicates compliance with North American standards and application requirements. This device operates on inverse time thermal-magnetic principles and is designed for use in systems requiring moderate inrush current handling.