{"product_id":"siemens-qj22b125-125a-240v-2-pole-bolt-on-circuit-breaker","title":"Siemens QJ22B125 - 125 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eSiemens QJ22B125 is a compact, dependable solution for protecting branch circuits in panelboards and load centers. This 2-pole molded case circuit breaker handles up to 125A at 240V, delivering precise, reliable protection for everyday electrical systems in residential, commercial, and light industrial settings.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection, helping maintain a solid, low-resistance electrical path even in high-traffic panels or equipment rooms.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines thermal and magnetic sensing for stable, repeatable protection. It responds to overcurrent conditions with predictable tripping behavior, and quickly clears short-circuit events to minimize damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e is engineered to integrate seamlessly with matching Siemens panelboards and load centers, reducing installation guesswork and ensuring consistent protection across your system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e ideal for new builds or upgrades in residential, commercial, and light industrial applications that require robust branch-circuit protection and fast fault clearance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Siemens\u003c\/li\u003e \u003cli\u003ePart Number: QJ22B125\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 125 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 2\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eWhat makes the QJ22B125 different is its combined emphasis on secure installation and dependable protection. The bolt-on mounting isn’t just about ease of installation; it builds a solid mechanical connection that resists vibration and improves long-term reliability. The thermal-magnetic trip unit delivers consistent performance across a range of loads, so you won’t experience unexpected nuisance trips or slow fault clearance. And because it’s designed to align with Siemens OEM load centers and panelboards, you’re choosing a solution that’s engineered to work as part of a cohesive system rather than a generic add-on.\u003c\/p\u003e \u003ch3\u003ePractical use and installation considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBest for panelboards and load centers that require a sturdy, two-pole 125A protection solution at 240V.\u003c\/li\u003e \u003cli\u003eIdeal when upgrading aging equipment or engineering a new electrical room with residential, commercial, or light industrial demands.\u003c\/li\u003e \u003cli\u003eThink about current load distribution and fault-clearing needs in spaces with potential short-circuit scenarios to maximize the benefit of fast, reliable trips.\u003c\/li\u003e \u003cli\u003eChoose this Siemens unit when you want tight integration with existing Siemens panel infrastructure and a proven protection strategy for branch circuits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355160301730,"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_94d9884d-4652-4250-a2ad-002c7d9b6c47.png?v=1764689821","url":"https:\/\/www.ampstate.com\/products\/siemens-qj22b125-125a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}