The Eaton NSB FAZ-D40 1-NA-SP is a single-pole miniature circuit breaker (MCB) rated 40 A for 277 V circuits. As part of Eaton's FAZ family, this 1P device delivers overcurrent protection in electrical distribution panels for single-phase circuits. It is designed for use in 277 V single-phase systems, providing protection up to 40 amperes in commercial or industrial panel installations.
