Siemens BLH B290H Circuit Breaker

Siemens B290H is a two-pole, 120/240 V AC molded‑case circuit breaker from the BLH family, rated at 90 A with a 22 kA short‑circuit interrupt rating. Designed for bolt‑on mounting in Siemens panelboards and distribution equipment, it combines a thermal‑magnetic trip mechanism with a common‑trip action to protect both legs of a 240 V circuit against overloads and faults. This B290H unit is explicitly configured for 120/240 V service with a 90 A continuous rating, and features a 2‑pole design that helps ensure coordinated protection across paired circuits; it is listed in Siemens' BLH lineup and is compatible with other BLH devices in the same series. Typical commercial and light industrial applications include feeders and branch circuits within service panels and main distribution sections, where reliable interruption up to 22 kA is required; the B290H is listed for UL 489 in supported Siemens equipment.