{"product_id":"square-d-fhl360451021-circuit-breaker","title":"Square D | FHL360451021 | Circuit Breaker | 45A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eEnhance your electrical protection with the Square D FHL360451021 Circuit Breaker. This 3-pole, 45A device delivers dependable, code-compliant protection for three-phase systems at up to 600V, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.\u003c\/p\u003e \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:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FHL360451021\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Maintenance, retrofit, and replacement where precise ratings are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm fit and ratings before ordering. The part number is the best reference for compatibility, helping you avoid mismatches that can lead to downtime or safety concerns.\u003c\/p\u003e \u003ch3\u003eWhy this 3-Pole 600V breaker stands out\u003c\/h3\u003e\n\u003cp\u003eThe Square D FHL360451021 is purpose-built for reliable protection in multi‑phase environments. Its 45A capacity suits a range of moderate-load, three-phase circuits, while the 600V rating ensures robust performance in commercial and light industrial panels. By using the exact part number for compatibility, you minimize the guesswork in retrofit or replacement projects and maintain system integrity.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRetrofit older service panels that require a precise 3-pole, 600V protection device\u003c\/li\u003e \u003cli\u003eReplace a failed breaker in 3-phase systems to restore reliable protection quickly\u003c\/li\u003e \u003cli\u003eSpecify a 45A, 3-pole, 600V protection device for new installations in commercial or light industrial settings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical guidance for installation and compatibility\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways reference the part number (FHL360451021) to verify compatibility with your panel label and bus configuration\u003c\/li\u003e \u003cli\u003eEnsure your system operates within the 600V rating and supports a 3-pole protection device\u003c\/li\u003e \u003cli\u003eKeep the replacement process aligned with your panel’s maintenance schedule to minimize downtime\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned with the reliability Square D is known for, this circuit breaker provides solid protection for critical loads and helps maintain safe, continuous operation across your three-phase power distribution. When exact specs matter, the FHL360451021 is a thoughtful, compatible choice that supports efficient maintenance, thoughtful retrofits, and precise replacements.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426376732834,"sku":"FHL360451021","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-fhl360451021-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}