Siemens QN2150 2 Pole 150 Amp Circuit Breaker

Siemens QN2150 is a two‑pole, 150‑amp molded‑case circuit breaker designed for 120/240 V residential distribution, providing reliable thermal‑magnetic overcurrent protection in a plug‑in form factor. It is UL 489 listed and part of the Siemens QN family intended for use in compatible load centers and panelboards; the standard QN2150 (catalog variants such as QN2150R) offers a 10,000 AIC interrupt rating, while higher‑rating versions exist (for example QN2150RH with 22,000 AIC). This 2P breaker protects large feeders or main circuits by interrupting both conductors during overloads or short circuits, helping safeguard wiring and connected equipment.