NZMH9-250/ZM9A-125-CNA Eaton Molded Case Circuit Breaker

The NZMH9-250/ZM9A-125-CNA is a 3-pole molded case circuit breaker rated at 250A, featuring thermal-magnetic trip functionality. It includes a fixed 125A thermal trip element and an adjustable magnetic trip range spanning 1000A to 2000A. Interrupting capacity is 200kA at 240V AC and 85kA at 480V AC. The CNA suffix denotes compliance with North American market certification and regulatory requirements. This device operates on inverse time principles for thermal response.