{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6406-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6406-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6406-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6406-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6406-7MB miniature circuit breaker, 4-pole, C-curve, 6 A rated, 6 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens 5SL6406-7MB is a SENTRON miniature circuit breaker (MCB) with a 4-pole design, C-trip characteristic, and a 6 A rated current at 400 V AC. Its 6 kA breaking capacity per EN 60898 covers the majority of residential and light commercial fault-current scenarios, making it a standard choice for final-distribution subcircuits in building infrastructure. ## Ratings and what they mean for panel fit The C-curve means the magnetic trip activates at 5 to 10 times rated current — suited for circuits with moderate inrush, such as lighting banks or small motor loads. At 6 A, this breaker protects a 1.5 mm² copper conductor on a 400 V three-phase line. The 6 kA breaking capacity is the maximum prospective fault current it can safely interrupt per EN 60898; for installations with higher available fault current, a current-limiting upstream device or a higher-rated MCB (e.g., 10 kA) would be needed. Rated insulation voltage is 440 V AC for multi-phase operation, and single-phase operation is rated at 250 V AC. Overvoltage category III and pollution degree 2 confirm it is designed for fixed installations inside a building's distribution board — not for outdoor or wet-location mounting without additional enclosure. Mechanical service life is 10 000 switching cycles typical. The breaker occupies 4 modular width units on a DIN rail, with a width of 72 mm, depth of 76 mm, and height of 90 mm. Installation depth is 70 mm, and mounting position is any orientation. ## Integration notes Snap-on mounting to a 35 mm DIN rail per EN 60715. The 4-pole design switches all three phases and leaves the neutral solid — no integrated neutral conductor switching. Terminal protection is IP20 with connected conductors, standard for enclosed distribution boards. The housing is halogen-free and silicon-free, and the breaker is sealable for tamper-proofing after commissioning.","metaTitle":"Siemens 5SL6406-7MB SENTRON MCB, 4P, C-Curve, 6A, 6kA","metaDescription":"Siemens 5SL6406-7MB SENTRON miniature circuit breaker, 4-pole, C-curve, 6A rated, 6kA breaking capacity per EN 60898. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","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":"6 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"No","at 30 °C / rated value":"6 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Product Feature / Touch Protection":"Yes","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","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30ebaf91390ce41344ed22b053eec81a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=426720&mlfb=5SL6406-7MB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6406-7MB/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SL6406-7MB?","answer":"Submit an RFQ through this listing. Pricing and stock levels are confirmed at quote time — we source through independent distribution and quote to order."},{"question":"What is 5SL6406-7MB's listed depth?","answer":"The depth is 76 mm, with an installation depth of 70 mm. Overall width is 72 mm, and height is 90 mm."},{"question":"Will 5SL6406-7MB drop into a panel specified around a single-pole 5SL3116-6MB?","answer":"No — the 5SL6406-7MB is a 4-pole breaker occupying 4 modular width units (72 mm wide), while the 5SL3116-6MB is a 1-pole unit at 18 mm wide. The panel would need a different DIN-rail layout and busbar arrangement to accept the 4-pole footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6406-7MB","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/5SL6406-7MB 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}}