{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6503-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6503-7","canonicalUrl":"https://aoctrl.com/siemens/5SL6503-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6503-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6503-7, miniature circuit breaker, 1P+N, 230 V AC, 6 kA, C-curve, 3 A, 2 MW, IP20.","salesMarkdown":"The Siemens SENTRON 5SL6503-7 is a 1P+N miniature circuit breaker rated 3 A with a C tripping characteristic, breaking 6 kA per EN 60898 and IEC 60947-2 at 230 V AC. That 6 kA rating is the same under both standards, so it covers residential and light commercial panelboards without needing separate coordination curves for each standard. The C-curve trips between 5× and 10× rated current — the right choice for mixed resistive and moderate inductive loads like lighting circuits and small appliance outlets where you want nuisance immunity from inrush but still fast clearing on a hard fault. It occupies 2 modular width units (36 mm) on a DIN rail, with a 70 mm installation depth behind the panel cover. The neutral pole is switched (1P+N), so the neutral is disconnected when the breaker is off — that's a requirement in several national wiring rules for final circuits. IP20 with connected conductors means it's protected against finger contact once wired; it's intended for enclosed distribution boards, not outdoor or washdown locations. Mounts on a standard 35 mm DIN rail in any position. The 36 mm width (2 MW) leaves room for adjacent breakers or accessories in a multi-pole panel layout. Sealable with a lockable cover (per), which is useful for isolating a circuit during maintenance or preventing unauthorized switching in a shared enclosure. Halogen-free and silicon-free construction matters if the panel is in a clean room or a corrosive environment where outgassing could cause contact or sensor issues. Rated for ambient temperatures from -40 °C to +75 °C, which covers most indoor and sheltered outdoor installations. Power dissipation is 1.2 W per pole at rated current in hot operating state — low enough that derating for adjacent breakers in a multi-pole assembly is minimal, but worth checking if the panel is densely packed and running near its thermal limit. Overvoltage category III and pollution degree 2 are standard for fixed-installation distribution boards.","metaTitle":"Siemens 5SL6503-7 SENTRON MCB, 1P+N, C-curve, 3 A, 6 kA","metaDescription":"Siemens SENTRON 5SL6503-7 miniature circuit breaker, 1P+N, 230 V AC, 6 kA breaking capacity (EN 60898 / IEC 60947-2), C characteristic, 3 A. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","Suitability For Operation":"Residential buildings/infrastructure","at DC rated value maximum":"72 V","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","supply voltage at AC rated value":"230 V","according to EN 60898 rated value":"6 kA","according to IEC 60947-2 rated value":"6 kA","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with single-phase operation at AC rated value":"250 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","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":"$9.91","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/02752110112366aae79b762489cbbf56.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=159363&mlfb=5SL6503-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6503-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL6503-7?","answer":"6 kA per both EN 60898 and IEC 60947-2 at 230 V AC. That is the same rating under both standards, so it can be specified without needing separate coordination curves for residential vs. industrial panel schedules."},{"question":"What is the difference between 5SL6503-7 and the 3-pole 5SL4363-7?","answer":"The 5SL4363-7 is a 3-pole (3P) breaker rated 10 kA at 400 V AC, while the 5SL6503-7 is 1P+N rated 6 kA at 230 V AC. The 5SL4363-7 is wider (54 mm vs. 36 mm) and dissipates more heat (5 W per pole vs. 1.2 W). They are not drop-in replacements; the 5SL6503-7 is for single-phase final circuits, the 5SL4363-7 for three-phase subfeeds."},{"question":"Where can I buy 5SL6503-7?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6503-7","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/5SL6503-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}