{"product_id":"abb-s203u-k40-40a-3p-240v-circuit-breaker","title":"ABB S203U-K40 Circuit Breaker, 40A, 3-Pole, 240V","description":"\u003cdiv\u003e\n\u003cp\u003eABB S203U-K40 circuit breaker delivers dependable overcurrent protection for industrial electrical service, routine maintenance, and replacement projects. With a 40 A rating across 3 poles at 240 V, this device is built for three-phase applications and rugged environments where protecting motors, drives, and control circuits matters most. Always verify fit by the part number (S203U-K40) against your panel and application requirements.\u003c\/p\u003e \u003ch2\u003eDesigned for robust industrial protection\u003c\/h2\u003e\n\u003cp\u003eEngineered by ABB, the S203U-K40 provides solid, proven protection for demanding industrial settings. Its three-pole configuration is ideal for three-phase power distribution, helping to safeguard connected equipment and wiring from overloads and faults. By interrupting fault currents promptly, it reduces downtime and potential damage to critical machinery on manufacturing floors, processing lines, and large control panels.\u003c\/p\u003e \u003ch3\u003eKey benefits and use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree‑phase protection:\u003c\/strong\u003e 3-pole design supports 3-phase systems common in factories and industrial plants.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePrecise 40 A protection:\u003c\/strong\u003e 40 A rating suits moderate to heavy loads while preventing nuisance tripping on normal operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e240 V operation:\u003c\/strong\u003e Compatible with standard industrial 240 V three-phase power distribution.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy compatibility verification:\u003c\/strong\u003e Use part number S203U-K40 to confirm fit with your panel, enclosure, and application requirements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable sourcing:\u003c\/strong\u003e ABB’s established manufacturing standards help simplify procurement and maintenance planning for replacements and upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFactories and manufacturing lines with three-phase motors and machinery\u003c\/li\u003e \u003cli\u003eMotor control centers and large control panels requiring dedicated overcurrent protection\u003c\/li\u003e \u003cli\u003eElectrical service upgrades or panel replacements where a compatible ABB device is preferred\u003c\/li\u003e \u003cli\u003eMaintenance projects that rely on readily identifiable part numbers for quick cross-checks\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation tips\u003c\/h3\u003e\n\u003cp\u003eTo ensure a seamless fit, verify the part number S203U-K40 against your equipment specifications and the panel’s accepted accessories. When in doubt about compatibility with your specific application, reach out for guidance to confirm that the 3-pole, 40 A, 240 V configuration aligns with your circuit protection strategy and panel design.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e ABB\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e S203U-K40\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 40 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 240 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading an aging installation or stocking parts for a preventive maintenance program, the ABB S203U-K40 40 A 3‑pole 240 V circuit breaker offers precise, reliable performance for demanding industrial environments. If you need help confirming compatibility, send a message and we’ll assist in matching the part number to your exact application.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46416076701858,"sku":"S203U-K40","price":460.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/abb-s203u-k40-40a-3p-240v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}