{"product_id":"abb-k40a-circuit-breaker","title":"ABB | K40A | Circuit Breaker | 40A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eABB K40A Circuit Breaker — 40A, 3-Pole\u003c\/strong\u003e delivers reliable overload and short-circuit protection for three-phase electrical systems. Designed for practical, everyday use in maintenance, retrofit, and replacement projects, this unit helps keep critical equipment protected while simplifying upgrades in ABB installations.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReference\u003c\/strong\u003e: Part number K40A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBest use\u003c\/strong\u003e: maintenance, retrofit, and replacement in compatible ABB installations\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note\u003c\/strong\u003e: Confirm fit and ratings before ordering—the part number is the most reliable reference for compatibility\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn a typical three-phase setup, the K40A protects motors, compressors, and other equipment from overloads, helping to prevent damage and unplanned downtime. Its 3-pole design ensures synchronized protection across all three phases, which is essential for balanced operation and system stability in industrial and commercial environments.\u003c\/p\u003e \u003cp\u003ePractical guidance for your purchase:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUse the \u003cstrong\u003eK40A\u003c\/strong\u003e part number as the primary reference to verify compatibility with your ABB panel or enclosure.\u003c\/li\u003e \u003cli\u003eBefore ordering, confirm that your system is a three-phase configuration and that the panel supports the same mounting and terminal arrangement as the existing protective device.\u003c\/li\u003e \u003cli\u003eIdeal for technicians performing routine maintenance, retrofit upgrades, or sustained replacement programs where precise fitment and consistent trip characteristics matter.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoosing the ABB K40A means selecting a purpose-built, situation-appropriate solution for safeguarding three-phase circuits. It’s well-suited for facilities where reliable protection and straightforward maintenance are priorities, ensuring equipment longevity and smoother operation across the power system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":46427166933154,"sku":"K40A","price":510.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a0994f42-7fad-49d1-911a-c2784022b8c9.png?v=1765492979","url":"https:\/\/www.ampstate.com\/products\/abb-k40a-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}