{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL7220-3RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL7220-3RC","canonicalUrl":"https://aoctrl.com/siemens/5SL7220-3RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL7220-3RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SL7220-3RC, miniature circuit breaker, 20 A, 2-pole, K characteristic, 15 kA breaking capacity.","salesMarkdown":"## What this MCB is and what the ratings mean The Siemens 5SL7220-3RC is a 2-pole miniature circuit breaker rated 20 A with a K-trip characteristic and a 15 kA breaking capacity. The K curve means it holds through short-duration inrush up to 8–12× rated current — sized for motor, transformer, and inductive loads where a B or C curve would nuisance-trip on startup. The 15 kA interrupting rating at 400 V tells you it can clear a hard fault up to that level without welding contacts or cascading upstream; that is the figure the panel designer uses for SCCR coordination. It is a current-production part, so the BOM line is stable for new builds and replacements alike. ## Deployment context Snap-on DIN-rail mounting for 35 mm rail per EN 60715. Two-pole width (36 mm) occupies two module spaces in the distribution board. Rated for 50/60 Hz networks — standard for commercial and light industrial panel builds.","metaTitle":"Siemens 5SL7220-3RC MCB 20A 2-pole K 15kA","metaDescription":"Siemens 5SL7220-3RC miniature circuit breaker, 20A, 2-pole, K characteristic, 15kA breaking capacity. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"title":"5SL7220-3RC","description":"Miniature Circuit Breaker 20A 2-pole K characteristic 15kA","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f9aab4719400fbba181630f03bf4e74e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1502412&mlfb=5SL7220-3RC"},"ai":{"faq":[{"question":"Where can I buy the 5SL7220-3RC and get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the 5SL7220-3RC's breaking capacity and trip characteristic?","answer":"Rated 20 A, 2-pole, K characteristic, 15 kA breaking capacity. The K curve (8–12× In) suits motor and inductive loads that draw high inrush."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL7220-3RC","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/5SL7220-3RC 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}}