{"product_id":"square-d-qob240vh-40a-240v-2-pole-bolt-on-circuit-breaker","title":"Square D QOB240VH - 40 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QOB240VH\u003c\/strong\u003e is a rugged 40A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect essential branch circuits with precision in panelboards and load centers.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBolt-on mounting for a secure, vibration-resistant connection.\u003c\/strong\u003e This reinforced mounting method creates a rigid bus connection that stays tightened in environments with vibration or movement, reducing the risk of loose contacts and intermittent trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit for stable, repeatable protection.\u003c\/strong\u003e The thermal element guards against sustained overloads, while the magnetic element delivers fast, instantaneous trips for short-circuit conditions, helping to isolate faults quickly and protect equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTwo-pole design for 240V circuits.\u003c\/strong\u003e By disconnecting both live conductors simultaneously, it provides complete upstream isolation and safer service for 240V loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e40A, 240V rating with OEM compatibility.\u003c\/strong\u003e Engineered to protect mid-to-high current branch circuits in a way that aligns with Square D’s matching load centers and panelboards, ensuring clean, reliable integration into existing electrical systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eWide applicability across spaces.\u003c\/strong\u003e Ideal for residential, commercial, and light industrial applications where dependable overcurrent and short-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis device protects a variety of 240V branch circuits—from upgrading a home panel to supporting small commercial panels and light industrial rooms—while delivering consistent performance even in demanding installations. The QOB240VH is a trusted choice for installers who value a secure connection, precise protection, and straightforward compatibility with compatible Square D panelboards and load centers.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: QOB240VH\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 40A\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\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355412189346,"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_c8daee29-ed88-40fc-bf2e-36ffec798521.png?v=1764691948","url":"https:\/\/www.ampstate.com\/products\/square-d-qob240vh-40a-240v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}