{"product_id":"5sx2203-7","title":"Siemens 5SX2203-7 - 3A, 400VAC, Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for industrial reliability, the Siemens \u003cstrong\u003e5SX2203-7\u003c\/strong\u003e delivers precise \u003cstrong\u003e3 A\u003c\/strong\u003e overcurrent protection up to \u003cstrong\u003e400 V AC\u003c\/strong\u003e, making it an essential component in panelboards, switchboards, control panels, and OEM equipment. This breaker is built to safeguard valuable wiring and equipment while keeping downtime to a minimum.\u003c\/p\u003e \u003cp\u003eDesigned to guard sensitive circuits and motor control centers, the \u003cem\u003e5SX\u003c\/em\u003e family device provides fast, predictable tripping behavior that interrupts fault conditions before damage occurs. With the 3 A current rating and 400 VAC capability, it suits a wide range of industrial and commercial applications where dependable protection is critical.\u003c\/p\u003e \u003ch3\u003eWhy the Siemens 5SX2203-7 stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact 3 A current rating\u003c\/strong\u003e tailored for protecting low-load control circuits and smaller motors without nuisance trips in everyday operation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 VAC voltage rating\u003c\/strong\u003e optimized for common industrial power distribution environments, ensuring reliable performance across panels and switchgear.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart of the Siemens 5SX family\u003c\/strong\u003e for seamless integration with panelboards, switchboards, and other Siemens protection devices, simplifying installation and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip mechanism\u003c\/strong\u003e provides both overload protection and short-circuit response, helping prevent equipment damage and extend component life.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-friendly and traceable\u003c\/strong\u003e with a dedicated part number (5SX2203-7) that supports easy ordering, stocking, and service in configured assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePanelboards, switchboards, and control panels in manufacturing facilities where reliable overcurrent protection is essential.\u003c\/li\u003e \u003cli\u003eMotor control centers and automation cabinets that require precise trip characteristics to protect wiring and starters.\u003c\/li\u003e \u003cli\u003eOEM equipment assemblies that are designed around Siemens protection strategies and compatible with the 5SX line.\u003c\/li\u003e \u003cli\u003eDistribution circuits in commercial environments needing robust, consistent circuit protection for critical loads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical installation and care tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify that the protected circuit operates at or below the 3 A rating to prevent nuisance trips and ensure dependable performance.\u003c\/li\u003e \u003cli\u003eConfirm compatibility with your 400 VAC supply and ensure wiring and conductors meet applicable standards for the current and voltage.\u003c\/li\u003e \u003cli\u003eIntegrate with other Siemens 5SX components to maintain cohesive protection across panels and control systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 3 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 400 VAC\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBreaker type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e panelboards, switchboards, control panels, OEM equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default","offer_id":46391246192802,"sku":"5SX2203-7","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/circuit_breaker_generic_cf8ed506-a7af-4508-97b9-e6cd6748f2f5.png?v=1765382612","url":"https:\/\/www.ampstate.com\/products\/5sx2203-7","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}