{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6620-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6620-6","canonicalUrl":"https://aoctrl.com/siemens/5SL6620-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6620-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6620-6 miniature circuit breaker, 3P+N, 20 A, B characteristic, 6 kA per EN 60898 / IEC 60947-2, 400 V AC, 4 MW.","salesMarkdown":"The Siemens 5SL6620-6 is a SENTRON miniature circuit breaker with a 3P+N pole configuration, rated 20 A with a B tripping characteristic. It breaks 6 kA at 400 V AC per both EN 60898 and IEC 60947-2, so it handles residential and light commercial fault currents up to that level without needing an upstream fuse for backup. It occupies 4 modular width units (72 mm) on a DIN rail, and the 76 mm depth leaves room for cable management in a standard distribution board. The 6 kA breaking capacity at 400 V AC is the same under both EN 60898 (household standard) and IEC 60947-2 (industrial standard), so this breaker is accepted in both residential and light industrial distribution boards without coordination paperwork. The B characteristic (3–5× In) is the right choice for resistive loads and general socket circuits — it avoids nuisance trips on small transformer inrush but clears fast on a hard short. Rated operating voltage is 400 V AC three-phase, with a maximum of 440 V AC multi-phase, and it handles 50/60 Hz supply frequency. The 72 V DC maximum rating means it can switch some DC control circuits, but it is primarily an AC device. Power loss per pole is 2.3 W at rated current in hot operating state — four poles means about 9.2 W total heat to dissipate inside the enclosure. In a crowded distribution board with multiple breakers, that heat adds up; leave adequate ventilation or derate if ambient exceeds 40 °C. ## Mounting and integration notes The 4 MW width (72 mm) matches the standard SENTRON footprint, so it aligns with busbar systems and enclosure cutouts designed for that modular pitch.","metaTitle":"Siemens 5SL6620-6 SENTRON MCB, 3P+N, 20A, B Curve, 6kA","metaDescription":"Siemens 5SL6620-6 SENTRON miniature circuit breaker, 3P+N, 20 A, B characteristic, 6 kA breaking capacity per EN 60898 / IEC 60947-2. Active production, sourced to order. Request q","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":"5SL6620-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 3+N-pole, B, 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":"B","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":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"2.3 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=376937&mlfb=5SL6620-6"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL6620-6?","answer":"The 5SL6620-6 has a 6 kA breaking capacity at 400 V AC, rated under both EN 60898 and IEC 60947-2. This covers typical residential and light industrial fault levels."},{"question":"What does the B tripping characteristic mean for this breaker?","answer":"The B characteristic trips at 3 to 5 times rated current (60–100 A for this 20 A breaker). It is suited for resistive loads, lighting circuits, and general socket outlets where inrush currents are low."},{"question":"Will 5SL6620-6 drop into a panel specified around 5SL4363-7?","answer":"Not without rewiring. The 5SL6620-6 is a 3P+N (4-pole) breaker occupying 4 MW (72 mm), while the 5SL4363-7 is a 3-pole breaker at 3 MW (54 mm). The pole count and width differ, so the panel busbar and enclosure cutout must accommodate the extra pole."},{"question":"Where can I buy 5SL6620-6?","answer":"The 5SL6620-6 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6620-6","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/5SL6620-6 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}}