Schneider Electric BDA34030YYP Circuit Breaker

Schneider Electric's Square D PowerPact B molded‑case circuit breaker, model BDA34030Y, delivers 30 A of protective current in a 3‑pole package designed for 480Y/277 VAC distribution. As an I‑Line style breaker, it mounts on the line side with load‑side mechanical lug terminals for reliable circuit protection in three‑phase panels. The unit employs a thermal‑magnetic trip mechanism to guard against overloads and short circuits, with an interrupting capacity of 18 kA at 480 VAC to help limit fault currents in standard industrial bus architectures. The BDA34030Y is part of Schneider Electric’s PowerPact B‑Frame family and is dual rated AC/DC with three levels of breaking capacity, offering design flexibility across different system requirements. It carries UL, CSA, NOM, IEC, and CCC certifications and CE marking, ensuring broad compatibility with international electrical codes. Typical applications include motor feeders, distribution panels, and branch circuits in facilities that use 277/480 V three‑phase service, providing precise protection coordination while maintaining a compact footprint in crowded electrical rooms.