Siemens BL350U Molded Case Circuit Breaker Assembly

Siemens BL350U is a panelboard‑mounting, bolt‑on, three‑pole molded‑case circuit breaker (BL‑type) rated for 50 A at 240 V AC, designed to protect three‑phase feeders and branch circuits in commercial and industrial panelboards. Its thermal‑magnetic trip mechanism provides overload and short‑circuit protection, with an interrupting rating of 10 kA at 240 V (10 kAIC), making it suitable for distribution applications that demand reliable instantaneous protection. UL 489‑listed and compatible with Siemens BL‑series assemblies, this device is intended for use within Siemens panelboards and BL‑type configurations to ensure proper coordination with other protective devices in the same family.