{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6420-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6420-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SL6420-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6420-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6420-7CC miniature circuit breaker, 4-pole, C-curve, 20 A, 6 kA interrupting capacity per EN 60898 at 400 V AC, 4 MW units wide.","salesMarkdown":"## Siemens 5SL6420-7CC SENTRON MCB — 4-pole, C-curve, 20 A, 6 kA The Siemens 5SL6420-7CC is a 4-pole miniature circuit breaker from the SENTRON series, rated 20 A with a C tripping characteristic and a 6 kA interrupting capacity per EN 60898 at 400 V AC. The 4-pole configuration switches all three phases plus the neutral, so it fits three-phase sub-distribution or a three-phase load where neutral isolation is required. The C-curve characteristic avoids nuisance tripping on inrush from small transformers or capacitor banks while still protecting branch circuits. The DC rating tops out at 72 V — not a primary DC breaker, but usable for low-voltage DC auxiliary circuits within that limit. The 4 MW width (72 mm) is standard for a 4-pole MCB — verify rail space if replacing a narrower 3-pole unit. Sealable per the spec, which matters for lockout/tagout procedures on a distribution board. The closest functional peer in the SENTRON 5SL series is the 5SL4363-7 — a 3-pole, C-curve, 63 A unit with a higher 10 kA interrupting capacity per both EN 60898 and IEC 60947-2. The 5SL6420-7CC is 4-pole and 20 A, so it covers three-phase-plus-neutral circuits at a lower ampacity. The 5SL4363-7 occupies 3 MW (54 mm) versus 4 MW (72 mm) for the 4-pole. If your panel was specified for a 3-pole 5SL4363-7, the 5SL6420-7CC will not drop in without rewiring — different pole count, different current rating, and different width.","metaTitle":"Siemens 5SL6420-7CC SENTRON MCB, 4P C 20A 6kA 400V","metaDescription":"Siemens 5SL6420-7CC SENTRON miniature circuit breaker, 4-pole, C-curve, 20 A, 6 kA per EN 60898 at 400 V AC. Active production, sourced to order. Request quote.","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","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","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","vibration resistance according to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"3.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f89338303db62cb8c7aaf733803ebb7d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=87769&mlfb=5SL6420-7CC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6420-7CC/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 5SL6420-7CC?","answer":"The 5SL6420-7CC has a 6 kA interrupting capacity per EN 60898 at 400 V AC. It also carries a 6 kA rating per IEC 60947-2."},{"question":"Where can I buy 5SL6420-7CC and how is it quoted?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing — stock and lead time are confirmed at quote time."},{"question":"Will 5SL6420-7CC replace a 5SL4363-7 in an existing panel?","answer":"No. The 5SL6420-7CC is a 4-pole, 20 A breaker (72 mm wide), while the 5SL4363-7 is a 3-pole, 63 A unit (54 mm wide). Different pole count, ampacity, and footprint — rewiring and rail space changes are required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6420-7CC","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/5SL6420-7CC 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}}