{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY5204-6CC11","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY5204-6CC11","canonicalUrl":"https://aoctrl.com/siemens/5SY5204-6CC11","factsUrl":"https://aoctrl.com/api/mcp/products/5SY5204-6CC11","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY5204-6CC11, miniature circuit breaker, 2-pole, B-curve, 4 A, DC 440 V / max 500 V, 10 kA breaking capacity, for railway applications.","salesMarkdown":"B-curve at 4 A means the magnetic trip fires between 3x and 5x rated current (12–20 A). That's tight enough to protect sensitive DC loads — control power supplies, relay coils, electronic modules — while riding out the inrush of a small DC-DC converter or a contactor pickup. The 2-pole construction switches both lines in a DC circuit, which is required for full isolation on ungrounded or floating DC systems. The 95% humidity rating at 55 °C (derating to 35% at 75 °C) means it's fine for non-condensing environments like a ventilated electrical room — not for direct washdown zones. Screw terminals accept 0.75 to 35 mm² solid or stranded copper, torqued to 2.5–3.5 N·m (22–31 lbf·in). Combined top and bottom terminals let you daisy-chain busbars without extra jumpers. IP20 with conductors connected — fine for enclosed panels, not for exposed outdoor mounting without a secondary enclosure.","metaTitle":"Siemens 5SY5204-6CC11 SENTRON MCB, 2P B-curve 4A DC 440V","metaDescription":"Siemens SENTRON 5SY5204-6CC11 miniature circuit breaker, 2-pole B-curve 4A, rated DC 440V/500V max, 10kA breaking capacity. Active production, railway-rated. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","title":"5SY5204-6CC11","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","description":"Circuit breaker Universal current 440 V DC 400 V AC 10kA, 2-pole, B, 4 A for railway applications","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"DC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at DC / rated value":"440 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Design of the product":"For railway applications","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","Tripping characteristic class":"B","at DC / rated value / maximum":"500 V","Position / of power supply cord":"Consider polarity","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"10 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 N·m","Product function / neutral conductor switching":"No","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/087a9579416f82c6063152aafeb06b55.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=719&mlfb=5SY5204-6CC11"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY5204-6CC11?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through our independent distribution network — we don't publish live prices or counts because availability shifts daily on this class of industrial breaker."},{"question":"Will 5SY5204-6CC11 drop into a panel that was specified around 5SY3132-6 without rewiring?","answer":"No — the 5SY5204-6CC11 is 36 mm wide (2 width units) versus 18 mm for the single-pole 5SY3132-6, so it takes up double the DIN-rail space. Wiring is different too: the 5SY5204-6CC11 is a 2-pole DC breaker with polarity-sensitive terminals, while the 5SY3132-6 is a 1-pole AC breaker. You'd need to rework the panel layout and re-terminate the DC circuit."},{"question":"What is 5SY5204-6CC11's listed depth (76 mm) on this component line?","answer":"The total depth is 76 mm, with an installation depth of 70 mm behind the panel face. That's standard for the SENTRON 5SY series and fits most 200 mm deep enclosures with wiring clearance."},{"question":"What compliance documentation does this brand provide for 5SY5204-6CC11?","answer":"The breaker carries IEC 60947-2 certification for the DC breaking capacity, and the railway design designation implies compliance with EN 50155 or related rolling stock standards. It's halogen-free and silicon-free, which matters for low-smoke, zero-halogen cable zones in tunnels or enclosed transit vehicles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY5204-6CC11","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SY5204-6CC11 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}