{"product_id":"eaton-qbhw3040h-40a-240v-3-pole-bolt-on-circuit-breaker","title":"Eaton QBHW3040H - 40 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton QBHW3040H is a robust bolt-on molded‑case circuit breaker engineered to deliver dependable branch‑circuit protection for panelboards and load centers. With a 40A rating at 240V and a 3‑pole configuration, this unit is built to handle everyday demand in residential, commercial, and light industrial environments while maintaining consistent protection performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt‑on mounting\u003c\/strong\u003e: provides a rigid, vibration‑resistant bus connection that stays tight through motor starts and routine panel activity, reducing the risk of loose connections and nuisance trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e: integrates overload and short‑circuit protection in a single mechanism, delivering stable, repeatable trips across temperature changes and varying load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM‑compatible design\u003c\/strong\u003e: designed to drop into matching Eaton loadcenters and panelboards, streamlining installation and ensuring reliable coordination with existing hardware.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑pole, 240V protection\u003c\/strong\u003e: ideal for three‑phase circuits or multi‑wire branch circuits in appropriate panel configurations, providing comprehensive protection across all relevant conductors.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e: suitable for a wide range of settings—from home electrical panels to light commercial equipment and small industrial installations—where dependable overcurrent and short‑circuit protection matters most.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton\u003c\/li\u003e \u003cli\u003ePart Number: QBHW3040H\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: 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\u003eWhy choose this breaker from AmpState: it’s purpose‑built to upgrade or replace a failing 3‑pole, 40A, 240V bolt‑on unit with a design that emphasizes a secure connection, consistent protection, and straightforward compatibility with Eaton panelboards. If your panel calls for a bolt‑on, molded‑case solution that you can trust in demanding environments, the QBHW3040H is a precise fit.\u003c\/p\u003e \u003cp\u003ePractical usage notes\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eVerify panelboard compatibility with Eaton bolt‑on breakers and confirm the 3‑pole, 240V configuration matches your setup.\u003c\/li\u003e \u003cli\u003eWhen planning replacement, align the amperage, pole count, and mounting style with the existing protective scheme to maintain proper coordination.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation, ensuring power is off and all connections are secure before commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349663600802,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_239a0fa1-5cad-43b1-907c-fadf1f766c8d.png?v=1764153088","url":"https:\/\/www.ampstate.com\/products\/eaton-qbhw3040h-40a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}