{"product_id":"siemens-qj22b225-225a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens QJ22B225 - 225 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Siemens QJ22B225 is a high-capacity, 2-pole bolt-on molded case circuit breaker designed to safeguard large branch circuits with reliable, consistent protection. Rated at 225A and 240V, it’s built to handle demanding panelboards and load centers in residential, commercial, and light industrial environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e delivers a rigid, vibration-resistant connection to the bus, reducing the risk of loosened contacts and ensuring dependable operation over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides precise protection by combining thermal sensing for gradual overloads with magnetic trip for immediate short-circuit events—giving stable, repeatable performance across a range of fault conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to pair with matching Siemens panelboards and load centers, streamlining replacement and maintenance in existing electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications where reliable overcurrent and short-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases and practical scenarios:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrade or expand panelboards in commercial spaces with higher current demands, such as lighting, HVAC, and heavy equipment feeders, without compromising protection performance.\u003c\/li\u003e \u003cli\u003eInstall in residential subpanels or multi-family dwellings where robust branch-circuit protection at 225A reduces nuisance trips during peak loads.\u003c\/li\u003e \u003cli\u003eDeploy in light industrial outfits that require dependable shutdown capabilities to safeguard motors and distribution circuits in harsh environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy the QJ22B225 stands out\u003c\/h3\u003e\n\u003cp\u003eIt’s more than a breaker—it’s a deliberate balance of strong mechanical mounting and intelligent protection. The bolt-on design minimizes movement-induced wear, while the thermal-magnetic trip unit responds rapidly to faults, helping to minimize damage to conductors and connected equipment. When you need a dependable, OEM-ready solution for high-current panelboards and load centers, the QJ22B225 delivers with clarity and confidence.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\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 QJ22B225\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 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 \u003cp\u003eChoose the Siemens QJ22B225 when you need a durable, code-compliant solution that pairs robust hardware with precise protection, ensuring your electrical system runs safely and efficiently under demanding conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355160727714,"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_5992e743-4986-4f51-ae89-07ab3f3a831c.png?v=1764689829","url":"https:\/\/www.ampstate.com\/products\/siemens-qj22b225-225a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}