{"product_id":"siemens-qr23b225-225a-240v-3-pole-bolt-on-circuit-breaker","title":"Siemens QR23B225 - 225 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens QR23B225 is a 225A, 240V, 3-pole bolt-on molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to stand up to demanding electrical environments, it combines robust construction with precise protection for your distribution system.\u003c\/p\u003e \u003ch2\u003eWhy the QR23B225 stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that helps minimize arcing and ensure consistent electrical contact over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance across a wide range of temperatures and loads, reducing nuisance trips while safeguarding equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible installation\u003c\/strong\u003e is designed to pair with matching Siemens OEM load centers and panelboards, simplifying replacement and upgrade scenarios.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHeavy-duty, three-pole design\u003c\/strong\u003e is ideal for 3-phase systems, delivering reliable protection for large feeders and multi-wire circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments, addressing diverse protection needs in a single device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMain feeder protection in Siemens panelboards and load centers for 3-phase distribution\u003c\/li\u003e \u003cli\u003eReplacement or retrofit in existing Siemens-originated electrical cabinets to maintain consistent protection specs\u003c\/li\u003e \u003cli\u003eProtection of large-draw circuits and critical branches in commercial or light industrial spaces\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongmanufacturer\u003e: Siemens\u003c\/strongmanufacturer\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: QR23B225\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: 225A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating\u003c\/strong\u003e: 240V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles\u003c\/strong\u003e: 3\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 \u003ch2\u003ePractical guidance for installation and optimization\u003c\/h2\u003e\n\u003cp\u003eChoose the QR23B225 when you need solid, long-term protection for substantial, multi-wire circuits in compatible panelboards. Its bolt-on design simplifies secure mounting in OEM-approved installations, while the thermal-magnetic trip unit helps ensure the breaker responds appropriately to both overloads and short circuits. For best results, pair this device with Siemens panelboards and load centers specified for 3-pole, 240V protection, and verify that the overall system design aligns with local electrical codes and safety standards.\u003c\/p\u003e \u003cp\u003eIn summary, the Siemens QR23B225 delivers heavyweight protection with reliable performance, making it an excellent choice for safeguarding large 3-phase circuits in residential, commercial, and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355166757026,"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_f079d89a-a264-4d5b-bb51-864970b4ab24.png?v=1764689917","url":"https:\/\/www.ampstate.com\/products\/siemens-qr23b225-225a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}