{"product_id":"square-d-fb78-78a-3p-600v-circuit-breaker","title":"Square D FB78 Circuit Breaker, 78A, 3-Pole, 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D FB78 Circuit Breaker—a 78 A, 3-pole, 600 V protection solution crafted for demanding industrial environments. Designed for reliability in service, maintenance, and replacement projects, this FB78 unit delivers trusted Square D performance to safeguard your equipment and personnel in everyday operations and during upgrades.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e FB78\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 78 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eDesigned for industrial service, maintenance, and replacement\u003c\/h3\u003e\n\u003cp\u003ePerfect for industrial electrical service, this three-pole breaker is suited for panels, switchgear, and distribution systems where three-phase protection is essential. It supports routine maintenance and straightforward replacement when upgrading or refurbishing existing installations, ensuring minimal downtime and dependable circuit protection.\u003c\/p\u003e \u003ch3\u003eCompatibility and fit\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility check:\u003c\/strong\u003e Verify fit by part number and application requirements. The correct and intended part number is \u003cstrong\u003eFB78\u003c\/strong\u003e, and confirming that your equipment, panelboard, or switchgear accepts this 3-pole 600 V breaker is essential before purchase. If you need help matching a part number or confirming compatibility, message us and we'll help.\u003c\/p\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed or obsolescent breaker in industrial panels or switchgear\u003c\/li\u003e \u003cli\u003eUpgrading legacy systems to a 600 V, three-phase protection scheme\u003c\/li\u003e \u003cli\u003eIncorporating a reliable 78 A breaker into new or refurbished distribution networks\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this FB78 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eThree-pole configuration provides synchronized protection across all phases in a 3-phase system\u003c\/li\u003e \u003cli\u003eRobust 600 V rating supports medium-to-high voltage industrial circuits with steady performance\u003c\/li\u003e \u003cli\u003eTrusted Square D design offers familiarity and compatibility with existing Square D components in your infrastructure\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical tips for deployment: ensure the system is de-energized before replacing any breaker, confirm exact compatibility with your panel or switchgear using the FB78 part number, and maintain a spare on hand for planned maintenance windows. If you’re unsure about compatibility or fit, reach out—we’re ready to assist with part-number validation and application-specific guidance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46414717157538,"sku":"FB78","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_513d6710-3734-4b27-839d-f68e6f4b470a.png?v=1765492974","url":"https:\/\/www.ampstate.com\/products\/square-d-fb78-78a-3p-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}