Siemens BQD230 Bolt-On Circuit Breaker is a 2-pole, 30 A molded-case breaker rated for 480Y/277 V AC (125/250 V DC) and designed for bolt-on mounting in Siemens panelboards. It carries a 14 kA short‑circuit interrupting rating (Icu) and is UL 489, CSA-C22.2 IEC 60947-2 listed. The catalog number BQD230 identifies this 2P, 30 A unit used in Siemens BQD/CQD MCCB families for protecting 480 V class circuits in commercial and industrial electrical distribution.
