{"product_id":"siemens-qr22b225-225a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens QR22B225 - 225 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Siemens QR22B225 — a rugged, reliable 225A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect branch circuits in panelboards and load centers. Built for steady performance in demanding environments, this breaker is engineered to keep your electrical system safe from overcurrent and short-circuit conditions with precision and durability.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e delivers a rigid, vibration-resistant bus connection, minimizing loosening and maintaining consistent electrical contact in panels subjected to movement or vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across a wide range of operating temperatures and load conditions, responding quickly to both overloads and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e is designed to work smoothly with matching Siemens load centers and panelboards, helping ensure a clean, reliable retrofit or upgrade.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suited for residential, commercial, and light industrial settings where dependable protection and long service life are essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Siemens\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QR22B225\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 225 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical scenarios\u003c\/h3\u003e\n\u003cp\u003eWhen you’re upgrading or replacing panels in a home, school, office, or light industrial setting, the QR22B225 provides robust protection for main or branch circuits without compromising space or reliability. Its bolt-on design is ideal for panelboards that experience vibration or movement, such as in mechanical rooms or equipment rooms, where a secure connection matters most. If you’re expanding circuits or migrating to a Siemens-compatible panel, this 2-pole, 225A unit integrates cleanly with existing OEM equipment, reducing installation time and compatibility concerns.\u003c\/p\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents nuisance trips from loose connections by ensuring a tight, vibration-resistant mount.\u003c\/li\u003e \u003cli\u003eDelivers predictable fault protection with a dependable thermal-magnetic trip profile, minimizing downtime and equipment damage.\u003c\/li\u003e \u003cli\u003eEliminates compatibility guesswork in upgrades by aligning with Siemens OEM panelboards and load centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and maintenance tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with Siemens QR22B225 and ensure the bolt-on mounting pattern matches your enclosure.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety protocols during installation, and torque mounting screws to the manufacturer’s specifications to maintain a solid bus connection.\u003c\/li\u003e \u003cli\u003eDuring maintenance checks, inspect for signs of wear on the mounting hardware and ensure there is no undue heat buildup around the breaker.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for professionals who value dependable protection, straightforward installation, and long-term reliability in electrical distribution systems, the Siemens QR22B225 is a practical choice for ensuring branch circuits stay protected under real-world operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355165806754,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens_breaker_and_panel_3c5d1a2d-9554-446c-bb7d-2d6d85d3d17b.png?v=1764689900","url":"https:\/\/www.ampstate.com\/products\/siemens-qr22b225-225a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}