NZM6B-63/ZM6A-20-NA Eaton Molded Case Circuit Breaker

The NZM6B-63/ZM6A-20-NA is a molded case circuit breaker with a fixed thermal trip setting of 20A and an adjustable magnetic trip range spanning 160 A to 320 A. Its interrupting rating is 25 kA at both 240 V and 480 V, and 14 kA at 600 V. This device delivers short-circuit protection in accordance with applicable standards for industrial distribution applications. The unit is designed for use in panelboards and switchgear where precise overcurrent coordination and consistent thermal response are required. Electrical performance remains within specified parameters across the rated voltage range. No external accessories or modifications are implied or required to achieve the stated ratings.