{"product_id":"siemens-5sy4204-7","title":"Siemens 5SY4204-7 4A 2-Pole 400 V Circuit Breaker Potential Transformer","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens 5SY4204-7\u003c\/strong\u003e is a compact, reliable 4 A two-pole circuit breaker engineered for 400 V systems, featuring an integrated potential transformer to streamline protection and measurement workflows. This combination reduces wiring complexity and lets you feed protection relays and metering equipment directly from the breaker assembly.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 4 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 400 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIntegrated potential transformer:\u003c\/strong\u003e enables direct sensing for protection relays and metering without additional CTs\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand and part:\u003c\/strong\u003e Siemens, 5SY4204-7\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis Siemens circuit breaker is ideal for 400 V distribution panels, switchgear, and motor control centers where precise current sensing and reliable overcurrent protection are essential. The built-in potential transformer supports accurate monitoring and facilitates seamless integration with modern protection schemes, helping you respond quickly to electrical faults and maintain system uptime.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey benefits in real-world use\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eStreamlined protection and measurement with an integrated potential transformer, reducing the need for separate sensing components.\u003c\/li\u003e \u003cli\u003eSpace-efficient design suitable for compact control panels and densely populated switchboards.\u003c\/li\u003e \u003cli\u003eConsistent performance in industrial environments where 400 V networks are standard.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal scenarios\u003c\/strong\u003e include new installations and retrofits in manufacturing lines, processing plants, and facilities with 400 V distributed power. Use it where you need reliable protection for two conductors while gaining immediate access to sensing signals for energy management, fault detection, and protective relays.\u003c\/p\u003e \u003cp\u003eWhen installing the Siemens 5SY4204-7, ensure compatibility with your enclosure and wiring scheme, and refer to the manufacturer’s documentation for mounting and electrical connections. This part number provides a ready-to-use solution that aligns with Siemens protection architecture while delivering practical monitoring capabilities right at the breaker.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46423267049634,"sku":"5SY4204-7","price":300.0,"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\/siemens-5sy4204-7","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}