Eaton NSB FAZ-D4 2-NA Miniature Circuit Breaker

The Eaton NSB FAZ-D4 2-NA miniature circuit breaker is a two-pole protective device in Eaton’s NSB FAZ family, identified by the FAZ-D4 2-NA model. It is rated for 4 amperes on 120/240 V AC with a 50/60 Hz supply, making it suitable for circuits that require precise, low-current protection across common power systems. As a 2P MCB, it interrupts current on both conductors of a circuit to provide reliable overcurrent protection and isolation in two-wire branch circuits wired to a distribution panel. The FAZ-D4 designation indicates its position within Eaton’s NSB FAZ line, supporting compact protection for small loads in distribution panels. With its 4 A rating and 120/240 V compatibility, this breaker helps ensure fault conditions do not propagate through the panel. For installations requiring two-pole, low-amperage protection in a standard 120/240 V distribution setup, the FAZ-D4 2-NA offers a straightforward, compatible option within Eaton’s NSB family.