{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4550-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4550-7","canonicalUrl":"https://aoctrl.com/siemens/5SL4550-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4550-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SL4550-7, 1P+N, tripping characteristic C, 50 A rated current at 230 V AC, 10 kA breaking capacity per EN 60898 and IEC 60947-2.","salesMarkdown":"The 50 A rating at 30 °C (46.19 A at 40 °C, 44 A at 45 °C, 39.81 A at 55 °C) means you need to derate when the breaker lives inside a warm enclosure or near other heat sources; the published thermal curve lets you size for real ambient conditions, not just the label. The 1P+N configuration switches the phase and disconnects the neutral, with neutral conductor switching built in, so it meets the isolation requirements for single-phase final subcircuits. ## Where it goes and how it fits IP20 with connected conductors — fine for enclosed panelboards; not for wet or outdoor locations without a secondary enclosure. Sealable terminals (yes) allow the installer to lock the cover after commissioning — useful for revenue-meter or tamper-proof applications.","metaTitle":"Siemens SENTRON 5SL4550-7 MCB, 1P+N, C-curve, 50 A, 10 kA","metaDescription":"Siemens SENTRON 5SL4550-7 miniature circuit breaker, 1P+N, C-curve, 50 A rated at 230 V AC, 10 kA breaking capacity per EN 60898. Active production, sourced 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","Number Of Poles":"2","Type Of Voltage":"AC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"50 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Number Of Poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"50 A","at 40 °C / rated value":"46.19 A","at 45 °C / rated value":"44 A","at 55 °C / rated value":"39.81 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","acc. to IEC 60947-2 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"230 V","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","Product Function / Neutral Conductor Switching":"Yes","with single-phase operation / at AC / rated value":"250 V","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/33e571ac4223ddce0bdc88ccae49eeb4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=50780&mlfb=5SL4550-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4550-7/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 5SL4550-7 and how is it quoted for volume purchases?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing confirmed at quote time."},{"question":"What is 5SL4550-7's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm; installation depth behind the panel surface is 70 mm."},{"question":"What compliance documentation does the brand provide for 5SL4550-7?","answer":"The product carries ratings per EN 60898 and IEC 60947-2, overvoltage category III, pollution degree 2, and IP20 with connected conductors. Halogen-free and silicon-free construction is confirmed."},{"question":"What is the closest functional second-source for 5SL4550-7?","answer":"The 5SL6550-7BB is a functionally similar MCB from the same SENTRON family, but verify the physical footprint and terminal layout for a drop-in replacement — the 5SL4550-7 uses 2 MW (36 mm width) and 1P+N configuration, so confirm the alternate matches those dimensions and pole count."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4550-7","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/5SL4550-7 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}}