Schneider Electric’s Square D NQBP300A208Y120V3PH4W42SP is a 300-amp main-breaker panelboard configured for 208Y/120-volt three-phase, four-wire service. Housed in a Type 1 indoor enclosure, it provides 42 spaces for branch-circuit breakers, making it a scalable solution for commercial and light-industrial distribution. As a member of the NQ panelboard family, it is designed to support main-breaker configurations and a wide range of compatible interiors and accessories for 208Y/120V service.
