{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL1270-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL1270-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL1270-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL1270-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL1270-7MB miniature circuit breaker, 2-pole, tripping characteristic C, 70 A rated at 30 °C, 3 kA breaking capacity per IEC 60947-2, IP20 with connected conductors.","salesMarkdown":"The Siemens SENTRON 5SL1270-7MB is a 2-pole miniature circuit breaker with a C tripping characteristic, rated 70 A at 30 °C. The 3 kA breaking capacity per IEC 60947-2 is the maximum fault current it can safely interrupt; for residential and light commercial panels where the prospective short-circuit current stays under 3 kA, this breaker is a clean fit. At 230 V single-phase or 400 V three-phase (multi-phase operation rated at 440 V maximum), it handles the standard European mains voltages. The 2-module-width (36 mm) footprint snaps onto a DIN rail, and the IP20 rating with connected conductors means it's for enclosed panel use only, not washdown areas. Depth is 76 mm, installation depth 70 mm — leaves 6 mm behind the rail for wiring clearance. Halogen-free and silicon-free construction, so it's safe for use in clean environments like data centers or medical facilities where outgassing matters. Rated for ambient temperatures from -40 °C to +75 °C, with a pollution degree of 2 and overvoltage category III — suited for fixed installations in residential and infrastructure buildings. The 4,000 mechanical switching cycles typical service life is adequate for normal branch-circuit duty where the breaker is operated infrequently.","metaTitle":"Siemens SENTRON 5SL1270-7MB MCB, 2P C 70A, 3kA","metaDescription":"Siemens SENTRON 5SL1270-7MB miniature circuit breaker, 2-pole, C-curve, 70 A rated at 30 °C, 3 kA per IEC 60947-2. IP20 with conductors. Active production — available to order agai","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL1270-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Circuit breaker 230/400V 3kA, 2pole, C, 70A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","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","at AC / rated value":"70 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","at 30 °C / rated value":"70 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","supply voltage / at AC / rated value":"230 V","according to IEC 60947-2 / rated value":"3 kA","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","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"253 V","Mechanical Service Life (Switching Cycles) / Typical":"4 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/852e2071d3314fe176214c1b96f449c3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1046737&mlfb=5SL1270-7MB"},"ai":{"faq":[{"question":"Where can I buy 5SL1270-7MB?","answer":"It is available to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL1270-7MB","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/5SL1270-7MB 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}}