Siemens 3RA6120-1BP32 Compact Load Feeder Unit

Siemens 3RA6120-1BP32 Compact Load Feeder is a three‑pole SIRIUS compact load feeder (DOL starter) designed to start a motor directly on line from a 690 V supply. The unit integrates the main circuit with screw‑terminal connections and provides a screw‑terminal auxiliary circuit for control, making it a compact, panel‑friendly starter in Siemens’ 3RA6 family. It accepts a control voltage of 110–240 V AC/DC at 50/60 Hz, offering flexible integration with common automation cabinets. The device is rated for a 690 V mains and 50/60 Hz operation, with a nominal load current range of 0.32–1.25 A, suitable for direct‑on‑line starting of small to medium‑sized three‑phase motors. Its enclosure carries IP20 protection, ensuring safe operation in typical indoor electrical panels. As part of the Siemens SIRIUS Compact load feeder lineup, the 1BP32 variant provides a streamlined option for simple motor start/stop tasks where space savings and straightforward wiring are priorities, without additional overload or advanced protection features. This makes it well suited for compact control panels in applications such as conveyors, pumps, and fans where a reliable, minimal‑complexity motor starter is needed.