Siemens Q2125HH Circuit Breaker

Siemens Q2125HH is a 2-pole, 125 A HQP molded‑case circuit breaker for 120/240 V residential distribution, delivering thermal‑magnetic trip protection with a 65 kA interrupt rating at 240 V. This plug‑in unit is part of the HQP family and is designed for quick installation in Siemens HQP‑compatible panels and load centers, offering straightforward drop‑in replacement for existing HQP breakers. The two poles provide common‑trip protection for multiwire branch circuits, ensuring both hot legs disconnect together on fault conditions, while protecting feeders and circuits up to 125 A. Built for reliability in residential electrical systems, the Q2125HH integrates with Siemens’ Q/QPH/HQP lineup and fits enclosures that accept HQP breakers, enabling clean, code‑compliant protection for 1‑phase, 120/240 V service.