{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3150-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3150-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL3150-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3150-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3150-7MB miniature circuit breaker, 1-pole, C-curve, 50 A rated, 4.5 kA breaking capacity per EN 60898, 230/400 V AC.","salesMarkdown":"The Siemens 5SL3150-7MB is a SENTRON miniature circuit breaker (MCB) — a 1-pole unit with a C tripping curve, rated 50 A at 230/400 V AC, and a breaking capacity of 4.5 kA per EN 60898. It occupies a single modular width (18 mm) on a DIN rail, so panel density is straightforward: one pole per 18 mm slot. At higher ambient temperatures, derate per the manufacturer's curve — the maximum ambient is 75 °C, but the breaker's thermal-magnetic trip element responds to both current and heat, so a panel running at 50 °C ambient should not be loaded to the full 50 A continuously. The 4.5 kA breaking capacity (per EN 60898) means it can safely interrupt a fault current up to 4.5 kA at 230/400 V without welding contacts or failing catastrophically. For installations where the prospective short-circuit current exceeds 4.5 kA, a higher-rated upstream device (e.g., an SENTRON 5SL6 series with 6 kA or 10 kA) is needed for coordination. Voltage limits: single-phase operation at 250 V AC, multi-phase at 440 V AC maximum. The DC rating maxes out at 72 V — this is an AC-optimized breaker; for DC circuits above 72 V, look at a DC-rated MCB like the 5SY series. Dimensions: 18 mm wide (1 modular unit), 90 mm tall, 76 mm deep. Installation depth is 70 mm — that's the space needed behind the DIN rail for the breaker body and wiring. Touch protection is built in — the terminals are shrouded to prevent accidental contact when the breaker is mounted in a panel.","metaTitle":"Siemens 5SL3150-7MB SENTRON MCB, 1P C-Curve 50 A 4.5 kA","metaDescription":"Siemens 5SL3150-7MB SENTRON miniature circuit breaker, 1-pole, C-curve, 50 A, 4.5 kA per EN 60898, 230/400 V AC. 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":"18 mm","title":"5SL3150-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230/400 V 4.5 kA, 1-pole, C, 50 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"50 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","according to EN 61346-2":"F","at 30 °C / rated value":"50 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"4.5 kA","supply voltage / at AC / rated value":"400 V","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Value Range / Of The Supply Voltage Frequency":"50 Hz","Product Component / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5e4ecc30f19c848e2ec1f4ba058686f8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=199281&mlfb=5SL3150-7MB"},"ai":{"faq":[{"question":"Where can I buy the 5SL3150-7MB and get a price?","answer":"The 5SL3150-7MB is sourced to order against an RFQ through independent distribution. Submit a request for quote (RFQ) for current availability and pricing — confirmed at quote time, not listed here as a fixed figure."},{"question":"What is the breaking capacity of the 5SL3150-7MB?","answer":"4.5 kA per EN 60898 at 230/400 V AC. That is the maximum fault current it can safely interrupt. For installations with higher prospective short-circuit current, step up to the 5SL6 series (6 kA or 10 kA)."},{"question":"What is the width of the 5SL3150-7MB?","answer":"18 mm, which is one modular unit (1 MWU) on a standard DIN rail. This matches the footprint of most 1-pole MCBs, so it drops into any panel designed for 18 mm-wide breakers."},{"question":"Will the 5SL3150-7MB fit in a panel built for the 5SL6006-7?","answer":"Yes — both are 1-pole, 18 mm wide MCBs with the same DIN-rail mounting. The 5SL3150-7MB is a C-curve 50 A breaker; the 5SL6006-7 is a B-curve 6 A breaker. The physical fit is identical, but the electrical rating and tripping curve are different — verify the circuit's load and coordination requirements before substituting."},{"question":"What compliance documentation does Siemens provide for the 5SL3150-7MB?","answer":"The breaker carries EN 60898 certification for breaking capacity and is classified per EN 61346-2 and IEC 81346-2 as function F (protection). It is halogen-free and silicon-free. For specific RoHS, REACH, or UL documentation, request the manufacturer's declaration from your distributor at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3150-7MB","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/5SL3150-7MB 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}}