{"product_id":"square-d-fal14040-circuit-breaker","title":"Square D | FAL14040 | Circuit Breaker | 40A | 1-Pole | 277V | 18kA","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D FAL14040 Circuit Breaker — a purpose-built, dependable safety device designed for commercial and industrial electrical systems. This 40A, 1-pole breaker is rated for 277V operation and delivers an impressive 18 kA interrupting capacity, making it a solid choice for protecting circuits with moderate to higher fault currents.\u003c\/p\u003e \u003cp\u003eDesigned for maintenance, retrofit, and replacement projects where exact specifications matter, the FAL14040 ensures you’re using a device that matches the original protection scheme. The part number FAL14040 is your best reference for compatibility—always confirm fit and ratings before ordering.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 40 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 277 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eInterrupting capacity:\u003c\/strong\u003e 18 kA\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand\/Series:\u003c\/strong\u003e Square D (FAL family)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e FAL14040\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eCommercial lighting and multi-load circuits powered by 277V systems\u003c\/li\u003e \u003cli\u003eRetrofit installations that require an exact 40A, 1-pole protection device\u003c\/li\u003e \u003cli\u003eReplacement of worn or outdated breakers in panels designed for the FAL series\u003c\/li\u003e \u003cli\u003eMaintenance projects where precise compatibility with existing Square D gear is essential\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic substitutes, the FAL14040 aligns with Square D’s protection philosophy: reliable tripping performance, consistent electrical characteristics, and a form factor suited to panels that accept FAL-type devices. The 1-pole design is ideal for single-leg circuits or branch circuits that don’t require a dual-pole arrangement, while the 277V rating expands the range of lighting and auxiliary loads you can safely protect.\u003c\/p\u003e \u003ch3\u003eHow it helps you keep systems safe\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePredicable protection for circuits prone to nuisance trips on moderate fault currents\u003c\/li\u003e \u003cli\u003eEfficient replacement workflow thanks to explicit part number matching\u003c\/li\u003e \u003cli\u003ePeace of mind knowing the device supports up to 18 kA fault current, reducing risk during short circuits\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for installation and verification\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, verify fit by cross-checking the part number FAL14040 against your panel’s accept list and ratings\u003c\/li\u003e \u003cli\u003ePower down the panel and use proper lockout\/tagout procedures before removing or installing breakers\u003c\/li\u003e \u003cli\u003eInspect the bus connection and mounting mechanism to ensure secure seating and proper alignment with the panel door labeling\u003c\/li\u003e \u003cli\u003eKeep a copy of your panel’s documentation handy to confirm that a 1-pole 40A 277V device with 18 kA interrupting capacity is appropriate for the circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424500600994,"sku":"FAL14040","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-fal14040-circuit-breaker-40a-1-pole-277v-18ka-694.webp?v=1789372754","url":"https:\/\/www.ampstate.com\/products\/square-d-fal14040-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}