{"product_id":"siemens-qr22b125l","title":"Siemens QR22B125L 125A 2-Pole 240 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens QR22B125L\u003c\/strong\u003e is a rugged, 125 A, 2-pole, 240 V circuit breaker built for dependable electrical protection in Siemens panels that accept QR series devices. With a 125 amp rating and two poles, it delivers reliable main-distribution protection for demanding residential and light commercial circuits, helping to safeguard wiring and connected equipment from overcurrent and short-circuit events.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCurrent rating: 125 A\u003c\/li\u003e \u003cli\u003ePoles: 2\u003c\/li\u003e \u003cli\u003eVoltage rating: 240 V\u003c\/li\u003e \u003cli\u003ePart number: QR22B125L\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned as part of Siemens’ QR family, the QR22B125L combines robust construction with precise protection characteristics tuned for 240 V systems. Its 2-pole configuration makes it ideal for feeding two hot legs in standard 120\/240 V setups, providing synchronized protection across both conductors. This alignment helps prevent unwired or unbalanced loads from compromising safety, and it’s purpose-built for panels that are configured to accept QR series breakers—ensuring a tight, reliable fit and consistent electrical performance.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMain feeder protection for 120\/240 V residential panels handling higher electrical demand\u003c\/li\u003e \u003cli\u003eProtection for large appliances and high-load circuits, such as water heaters, air handlers, or central HVAC equipment\u003c\/li\u003e \u003cli\u003ePrimary protection in small-to-medium commercial panels where a 125 A, 2-pole device is appropriate\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes it reliable for everyday use\u003c\/h3\u003e\n\u003cp\u003eThe QR22B125L is engineered to interrupt fault currents safely and predictably, helping to minimize damage during electrical faults. It integrates seamlessly with Siemens’ QR-series accessories and bus systems, delivering consistent trip performance and straightforward replacement in service panels that require a 125 A, 2-pole, 240 V solution. For property owners and technicians, this means fewer compatibility worries and faster service readiness when upgrading or maintaining main protection feeders.\u003c\/p\u003e \u003ch3\u003eInstallation \u0026amp; safety considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that your panel accepts QR-series breakers before installation\u003c\/li\u003e \u003cli\u003eTurn off main power and lockout\/tagout before servicing or replacing breakers\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque and seating guidelines to ensure secure connection\u003c\/li\u003e \u003cli\u003eInspect for signs of overheating, wear, or damaged conductors during routine maintenance\u003c\/li\u003e \u003cli\u003eUse appropriate PPE and comply with local electrical codes during installation\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTips for selecting the right breaker\u003c\/h3\u003e\n\u003cp\u003eChoose the QR22B125L when your panel configuration requires a 125 A, 2-pole, 240 V protective device. If your load calculations indicate a higher or lower protection level, or if your panel uses a different family of breakers, consult your panel’s labeling and Siemens compatibility guides to ensure optimal matching and ongoing electrical safety.\u003c\/p\u003e \u003ch3\u003eFrequently considered questions\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eWhat does 125 A mean in practical terms?\u003c\/strong\u003e It indicates the maximum continuous current the breaker is designed to carry on a normal basis before tripping to prevent overheating. It protects both wiring and connected devices by interrupting faults or overloads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIs this suitable for residential or commercial use?\u003c\/strong\u003e It’s suitable for residential or light commercial panels that require a 125 A, 2-pole, 240 V QR-series breaker, providing reliable main\/feeder protection where higher load currents are expected.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHow does it differ from smaller breakers?\u003c\/strong\u003e Being rated for 125 A means it can handle higher feeder loads, which is essential for circuits feeding large appliances or multiple high-demand loads, while still offering the proven safety of a Siemens protection device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423709974690,"sku":"QR22B125L","price":1588.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/siemens-qr22b125l-125a-2-pole-240-v-circuit-breaker-454.webp?v=1789328642","url":"https:\/\/www.ampstate.com\/products\/siemens-qr22b125l","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}