Siemens BQDST480 Quad Pole Molded Case Circuit Breaker

Siemens BQDST480 Quad Pole Molded Case Circuit Breaker is a four-pole protection device from Siemens' BQ family, designed for four-wire, multi‑phase electrical installations. This quad-pole MCCB permits the simultaneous disconnection of all poles, enabling reliable isolation in three‑phase systems with a shared neutral or control wiring path. The molded-case construction of the BQDST480 aligns with Siemens' BQ/CQD product lineage, delivering compact, rigid protection suitable for panelboards, switchgear, and distribution assemblies. As with all molded case breakers, exact electrical ratings, terminal configurations, and accessory options vary by configuration and regional catalog; consult the device label and Siemens' official data sheets for the BQDST480 to confirm amperage, voltage, interrupting capacity, and mounting details. In typical electrical distribution setups, four-pole breakers are used where full isolation of three-phase circuits with a neutral is required, and the BQDST480 is designed to integrate with compatible Siemens equipment for straightforward replacement and consistent performance.