Siemens QR22B200L 2 Pole 200A Circuit Breaker

Siemens QR22B200L is a 200A, two‑pole molded‑case circuit breaker from the QR series, designed for 240V systems with 50/60 Hz operation and a thermal‑magnetic trip that provides both overload and short‑circuit protection. It features line/load lug connections and is rated for up to 10 kA interrupting capacity at 240V, making it suitable for main or feeder protection in Siemens QR‑frame panels and compatible enclosures. The device is built for 2P, 240V service and, in typical installations, fits within standard NEMA 1/3R flush‑mount enclosures, with dimensions about 7 in high by 3 in wide by 2.53 in deep. For wiring, the lug terminals support copper conductors in the copper range specified by the manufacturer, listed as 3 AWG to 300 kcmil Cu for line/load terminations, enabling substantial feeder sizing on a single device. This QR2‑family breaker is widely used in commercial electrical distributions and larger residential panels as a reliable protection point for 200A feeders or service equipment.