{"product_id":"qbhw1045-circuit-breaker","title":"QBHW1045 | Circuit Breaker | 45A | 1-Pole | 240V | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eQBHW1045\u003c\/strong\u003e is an industrial circuit breaker engineered for dependable protection in maintenance, retrofit, and replacement projects where exact specifications matter. This 1-Pole, 45A, 240V bolt-on breaker is designed to slot into compatible panels with minimal downtime, helping keep critical electrical systems safe and compliant.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QBHW1045\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eDesigned for reliability in demanding environments, this breaker delivers fast, secure disconnect protection for single circuits. The bolt-on mounting reduces installation time by simplifying mounting alignment and ensuring a solid, vibration-resistant fit in compatible panels. Using the exact part number QBHW1045 helps ensure you’re selecting a device that matches the original specifications, minimizing compatibility surprises during retrofit or replacement.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance on industrial equipment where a 45 A, 240 V single-pole protection is required.\u003c\/li\u003e \u003cli\u003eRetrofits to upgrade older installations without changing the surrounding panel hardware.\u003c\/li\u003e \u003cli\u003eReplacement in legacy systems where exact spec alignment (1-Pole, 240V, 45A) is essential for safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e to ensure the QBHW1045 matches your panel’s acceptance criteria. Use the part number as your primary reference for compatibility, and verify that the enclosure and bus configuration support a bolt-on, 1-pole 240V device. If you’re replacing a failed breaker, check that the trip characteristics and current rating meet the circuit’s protective needs, and review any panel labeling or documentation for confirmed compatibility.\u003c\/p\u003e \u003cp\u003eWith its industrial-grade build and straightforward bolt-on installation, the QBHW1045 offers a practical, reliable solution for maintaining electrical safety and continuity in commercial and industrial settings. Add it to your toolkit for quick, trustworthy replacements that keep your systems up and running.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46426711359650,"sku":"QBHW1045","price":136.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_16d3a2fb-5d93-424c-9206-5031ec4b178f.png?v=1765492977","url":"https:\/\/www.ampstate.com\/products\/qbhw1045-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}