{"product_id":"square-d-fh36045-black-circuit-breaker","title":"Square D | FH36045-BLACK | Circuit Breaker | 45A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FH36045-BLACK, a 45A, 3-Pole circuit breaker designed for durable protection in maintenance, retrofit, and replacement projects where exact specifications matter. This unit is indexed by its part numberFH36045-BLACK, ensuring you match the exact device your system requires for reliable performance and safety in high-voltage environments.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 45A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference:\u003c\/strong\u003e FH36045-BLACK (part number)\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eFor professionals managing 3-phase electrical systems, this Square D breaker delivers precise specifications in a single, ready-to-install unit. The 3-Pole configuration provides protection across three conductors, making it well-suited for commercial panels and industrial environments where balanced, coordinated switching is essential. The 600V rating supports higher-voltage circuits, enabling safer, more efficient fault isolation and system protection.\u003c\/p\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance: replace a worn or failed breaker to restore protected circuits quickly without compatibility concerns.\u003c\/li\u003e \u003cli\u003eRetrofit: upgrade legacy panels to ensure consistent protection with modern 600V equipment.\u003c\/li\u003e \u003cli\u003eReplacement part: keep a matching FH36045-BLACK on hand as a ready-to-install spare for critical systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eFitment and compatibility\u003c\/h3\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings match your panel and electrical design. The FH36045-BLACK part number is the most reliable reference for compatibility, so verify this exact model against your equipment label and service documentation to avoid mismatches.\u003c\/p\u003e \u003ch3\u003ePractical considerations and tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse this 45A, 3-Pole breaker for three-conductor circuits that operate up to 600V, ensuring proper protection for each phase.\u003c\/li\u003e \u003cli\u003eKeep a spare FH36045-BLACK on hand for rapid replacement and minimal downtime during maintenance windows.\u003c\/li\u003e \u003cli\u003eWhen retrofitting, cross-check panel labeling and listing to ensure continued compliance with your electrical system’s protection requirements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTrust the Square D FH36045-BLACK for precise protection where it matters most. Its exact specifications—45A, 3-Pole, 600V—make it a dependable choice for commercial and industrial electrical protection, aligning with your system’s design intent and safety standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426378666146,"sku":"FH36045-BLACK","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-fh36045-black-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}