{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6504-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6504-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6504-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6504-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6 series, miniature circuit breaker, D characteristic, 4 A rated, 2-pole (1P+N), 6 kA breaking capacity per EN 60898, 250 V AC single-phase, 2 MW units wide, IP20.","salesMarkdown":"## What it is and what the ratings mean The Siemens 5SY6504-8CC is a SENTRON miniature circuit breaker with a D tripping characteristic, rated 4 A at 35 °C ambient. The D curve means it tolerates high inrush currents — typically motor and transformer starts — without nuisance tripping, while still clearing a 6 kA fault per EN 60898. That 6 kA is the short-circuit breaking capacity at 250 V AC single-phase; it safely interrupts faults up to that level without welding the contacts or cascading upstream. This is a 2-pole breaker in a 1P+N design — it switches both the line and the neutral conductor, which is required in some regional codes for final subcircuits. The neutral pole is switched, not just solid-linked, so it isolates both sides when opened. It occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm. Rated operating voltage is 250 V AC single-phase at 50/60 Hz. The breaker is also rated for DC operation up to 72 V, though the DC breaking capacity is not listed here — verify for DC circuits. Pollution degree 3 and overvoltage category III mean it's suited for industrial panels where conductive dust or condensation may be present. ## Derating and temperature influence The 4 A rating holds at 35 °C. Above that, the breaker must be derated: 3.76 A at 40 °C, 3.64 A at 45 °C, 3.5 A at 50 °C, and 3.37 A at 55 °C. If the panel ambient runs hot — say inside a sealed enclosure near a drive — size the circuit for the derated value, not the 35 °C number. The surrounding temperature influence also caps relative humidity: 95% up to 55 °C, dropping to 55% at 70 °C and 35% at 75 °C. Operating temperature range is -40 °C to 75 °C, so it handles cold starts in unheated warehouses or outdoor cabinets. Mounting position is any — no derating needed for horizontal or inverted installation. ## Panel integration and compliance Snaps onto a DIN rail via the quick assembly system — no tools needed for mounting. Combined terminals top and bottom accept the same conductor range; the sealable cover option (yes, sealable) lets you lock the setting against tamper after commissioning. IP20 with connected conductors means it's protected against finger contact but not water ingress — standard for enclosed distribution boards. Halogen-free and silicon-free construction matters for sensitive environments like clean rooms or semiconductor fabs where outgassing can contaminate optics or contacts. The breaker is designated for mechanical engineering and industry per its suitability listing.","metaTitle":"Siemens 5SY6504-8CC SENTRON MCB, D-curve, 4 A, 2-pole, 6 kA","metaDescription":"Siemens 5SY6504-8CC SENTRON miniature circuit breaker, 4 A rated, D tripping characteristic, 2-pole (1P+N), 6 kA breaking capacity per EN 60898. Active production. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY6504-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230 V 6kA, 1+N-pole, D, 4 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"4 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","at 35 °C rated value":"4 A","at 40 °C rated value":"3.76 A","at 45 °C rated value":"3.64 A","at 50 °C rated value":"3.5 A","at 55 °C rated value":"3.37 A","according to EN 61346-2":"F","Combined Terminal Bottom":"Yes","according to IEC 81346-2":"F","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"Yes","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"D","according to EN 60898 rated value":"6 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with single-phase operation at AC rated value":"250 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.2 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/15612e0bdde582930f06231591f28edb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=536828&mlfb=5SY6504-8CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY6504-8CC?","answer":"Submit an RFQ through this listing. The part is sourced and quoted to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SY6504-8CC?","answer":"Depth is 76 mm, with an installation depth of 70 mm. Width is 36 mm (2 modular units), height is 90 mm."},{"question":"Will 5SY6504-8CC drop into a panel specified around 5SY4104-7CV?","answer":"Both are 2-module SENTRON MCBs on the same DIN-rail footprint, so the mechanical fit is the same. The difference is the tripping characteristic: 5SY6504-8CC is D-curve (high inrush), while 5SY4104-7CV is a different curve. Check the existing breaker's curve before swapping — a D-curve may not coordinate with the same downstream devices."},{"question":"What compliance documentation is available for 5SY6504-8CC?","answer":"The breaker carries EN 60898 rating (6 kA breaking capacity) and is classified per EN 61346-2 and IEC 81346-2 as function F. It is halogen-free and silicon-free. Specific RoHS/REACH/UL declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6504-8CC","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/5SY6504-8CC 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}}