{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6620-7MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6620-7MB","canonicalUrl":"https://aoctrl.com/siemens/5SL6620-7MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6620-7MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SL6620-7MB, 3P+N, C-curve, 20 A, 6 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens 5SL6620-7MB is a SENTRON miniature circuit breaker — a 4-pole unit (3P+N) with a C-trip curve, rated 20 A at 400 V AC. The 6 kA breaking capacity per EN 60898 is the standard for residential and light-commercial distribution boards; it clears a bolted fault up to 6 kA without welding the contacts or cascading damage upstream. The C-curve means the magnetic trip fires between 5× and 10× rated current — 100 to 200 A — so it handles motor inrush from pumps or small compressors on a lighting or general-purpose circuit without nuisance tripping. ## Where it goes and how it fits The 4-module-width body (72 mm wide) occupies four 18 mm slots in a consumer unit or sub-distribution board. Installation depth is 70 mm, with an overall depth of 76 mm including the front face — check clearance to the enclosure door or cover. ## What it handles — environmental and electrical The 1.9 W power loss per pole at rated current adds up to about 7.6 W total for all four poles — negligible in a ventilated enclosure but worth noting if the board is sealed and densely populated.","metaTitle":"Siemens 5SL6620-7MB SENTRON MCB, 3P+N, C-Curve, 20A, 6kA","metaDescription":"Siemens 5SL6620-7MB SENTRON miniature circuit breaker, 3P+N, 20A, C-curve, 6kA breaking capacity per EN 60898. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL6620-7MB","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3+N-pole, C, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P+N","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","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":"4","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 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","with multi-phase operation at AC maximum":"440 V","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with multi-phase operation at AC rated value":"440 V","Mechanical Service Life (Operating Cycles) Typical":"20 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"1.9 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30f37223df89538091043217ac1e42cf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=299218&mlfb=5SL6620-7MB"},"ai":{"faq":[{"question":"What is the 5SL6620-7MB used for?","answer":"It's a 4-pole miniature circuit breaker for 400 V AC distribution boards, protecting a 20 A final subcircuit with a C-curve trip characteristic suited for mixed resistive and moderate inductive loads."},{"question":"Will the 5SL6620-7MB drop into a panel specified for the 5SL4363-7?","answer":"Both are SENTRON MCBs on the same DIN-rail footprint with the same 76 mm depth and 90 mm height, but the 5SL6620-7MB is 4-pole (72 mm wide) while the 5SL4363-7 is 3-pole (54 mm wide). The panel must have the extra 18 mm slot for the neutral pole, and the wiring to the N terminal must be accommodated. The breaking capacity differs: 6 kA vs 10 kA, so the upstream fault level must be checked."},{"question":"Where can I buy the 5SL6620-7MB?","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":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6620-7MB","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/5SL6620-7MB 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}}