{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4520-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4520-7","canonicalUrl":"https://aoctrl.com/siemens/5SL4520-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4520-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4520-7 miniature circuit breaker, 1P+N, C-curve, 20 A, 10 kA breaking capacity per EN 60898 and IEC 60947-2, 230 V AC, 2-module width.","salesMarkdown":"## What the ratings mean for fit The Siemens 5SL4520-7 is a 1P+N miniature circuit breaker from the SENTRON family, rated 20 A with a C tripping characteristic. The C-curve means it trips at 5 to 10 times rated current — suited for circuits with moderate inrush, like residential lighting and general-purpose socket outlets, where the magnetic trip avoids nuisance tripping on transformer or motor starting currents. Breaking capacity is 10 kA per both EN 60898 and IEC 60947-2. That 10 kA rating is the maximum prospective fault current the breaker can safely interrupt at 230 V AC — critical for verifying selectivity with upstream devices and ensuring the installation's SCCR is met. Overvoltage category III and pollution degree 2 confirm it's rated for fixed-installation distribution boards, not just final circuits. ## Panel integration and sourcing The 5SL4520-7 occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 76 mm and installation depth of 70 mm. Mounting position is any, which simplifies layout in crowded enclosures. The IP20 rating applies with connected conductors — standard for distribution board use, not for wet or washdown environments. Sealable design allows the installer to lock the toggle position for tamper resistance.","metaTitle":"Siemens 5SL4520-7 SENTRON MCB, 1P+N, C-curve, 20 A, 10 kA","metaDescription":"Siemens 5SL4520-7 SENTRON miniature circuit breaker, 1P+N, C-curve, 20 A, 10 kA per EN 60898 & IEC 60947-2. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SL4520-7","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 230 V 10kA, 1+N-pole, C, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","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":"2","Tripping Characteristic Class":"C","supply voltage at AC rated value":"230 V","according to EN 60898 rated value":"10 kA","according to IEC 60947-2 rated value":"10 kA","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","with single-phase operation at AC rated value":"250 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 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f85ffff0bcbdedee6c573e435474e89b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=9592&mlfb=5SL4520-7"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SL4520-7?","answer":"Pricing and stock levels are confirmed at quote time. Submit an RFQ against this order code; availability and current pricing are provided on request through independent distribution."},{"question":"Will 5SL4520-7 drop into a panel that was specified around 5SL4363-7 without rewiring?","answer":"No — the 5SL4363-7 is a 3-pole (3P) breaker on a 54 mm footprint (3 MW), while the 5SL4520-7 is 1P+N on 36 mm (2 MW). The pole count, width, and wiring differ; a panel designed for the 3P unit would need rewiring and a different DIN-rail layout to accept the 1P+N unit."},{"question":"What compliance documentation does this brand provide for 5SL4520-7?","answer":"The 5SL4520-7 carries approvals per EN 60898 and IEC 60947-2 for breaking capacity. It is halogen-free and silicon-free, and rated for overvoltage category III and pollution degree 2. RoHS and REACH declarations are standard Siemens documentation for the SENTRON series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4520-7","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/5SL4520-7 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}}