{"product_id":"square-d-qob2125-125a-240v-2-pole-bolt-on-circuit-breaker","title":"Square D QOB2125 - 125 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QOB2125\u003c\/strong\u003e is a 125A, 240V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e delivers a rigid, vibration-resistant bus connection, helping maintain consistent electrical performance even in installations with dynamic loads or in commercial environments.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across a range of operating conditions. The thermal element handles gradual overloads, while the magnetic element provides fast response to high-current faults, limiting damage and downtime.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e—designed to be used with matching Square D OEM load centers and panelboards, ensuring proper fit, trip characteristics, and coordinated protection within your distribution system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal for\u003c\/strong\u003e residential, commercial, and light industrial applications where reliable protection is essential.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QOB2125\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 125A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240V\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\u003eUse cases and installation scenarios\u003c\/h3\u003e\n\u003cp\u003eThe QOB2125 is well-suited for replacing or upgrading breakers in existing panelboards and load centers that require a reliable 125A, 240V, 2-pole solution. Use it in service panels, subpanels, or feeder configurations where a compact, bolt-on device reduces movement and improves safety in tight enclosures. Its precise thermal-magnetic trip response helps minimize nuisance trips while still delivering fast magnetic protection during high-current faults.\u003c\/p\u003e \u003ch3\u003ePractical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCompatibility: Ensure you’re pairing with the corresponding OEM load center or panelboard to maintain coordinated protection and fit.\u003c\/li\u003e \u003cli\u003eReliability: The bolt-on design minimizes bus connection looseness due to vibration, supporting long-term performance in industrial and commercial settings.\u003c\/li\u003e \u003cli\u003eReplacement strategy: For upgrades or replacements, verify the panel’s bus configuration and available space for a 2-pole, bolt-on device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho benefits most\u003c\/h3\u003e\n\u003cp\u003eElectrical contractors, facility managers, and property owners who rely on stable electrical distribution with straightforward installation will appreciate the Square D QOB2125. It offers predictable protection, seamless integration with Square D panels, and a rugged form factor designed for busy environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355409862818,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_7a361ddc-1935-42ae-bc19-eceb8610cdc7.png?v=1764691922","url":"https:\/\/www.ampstate.com\/products\/square-d-qob2125-125a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}