{"product_id":"square-d-qhb315-15a-3-pole-bolt-on-circuit-breaker","title":"Square D QHB315 - 15 A, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D QHB315, a 15 A, 3-pole bolt-on molded case circuit breaker designed to shield your panelboards and loadcenters from overcurrent and short circuits. Built for reliable protection in residential, commercial, and light industrial settings, this unit is the robust choice when safety and performance matter.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays tight and dependable even in demanding installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding predictably to overloads and short circuits, helping prevent nuisance trips and equipment damage.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e—designed to integrate with matching Square D loadcenters and panelboards for a seamless fit and straightforward replacement or expansion.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole design\u003c\/strong\u003e suitable for three-phase circuits, common in light commercial and industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e15 A rating\u003c\/strong\u003e provides precise protection for branch circuits without sacrificing performance or panel layout flexibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003ePractical applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eResidential\u003c\/strong\u003e: Protect starter circuits for three-phase equipment in upgraded homes or multi‑family installations with compatible panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCommercial\u003c\/strong\u003e: Ideal for lighting, outlets, and small three‑phase loads where reliable protection and easy serviceability matter.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLight industrial\u003c\/strong\u003e: Suitable for motor feeds and equipment in compact facilities that require dependable trip behavior and secure mounting.\u003c\/li\u003e\n\u003c\/ul\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: QHB315\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 15 A\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\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 \u003cp\u003eIncorporate the Square D QHB315 into your electrical protection strategy to achieve dependable, predictable performance across a range of environments. Its rugged bolt-on mounting and responsive thermal-magnetic trip unit make it an excellent choice for ensuring the safety and longevity of your panelboards and loadcenters.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355391512738,"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_35faa424-60ea-483f-b8bc-32a5ed78dbfc.png?v=1764691746","url":"https:\/\/www.ampstate.com\/products\/square-d-qhb315-15a-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}