{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4420-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4420-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4420-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4420-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4420-7CC miniature circuit breaker, 4-pole, C-curve, 20 A rated current, 10 kA breaking capacity at 400 V AC, 4 modular width units.","salesMarkdown":"## What it is and what it does The Siemens 5SL4420-7CC is a 4-pole (4P) miniature circuit breaker from the SENTRON 5SL series, rated 20 A with a C tripping characteristic. It is designed for AC circuits at 400 V and provides a 10 kA breaking capacity per EN 60898 — enough for most residential and light commercial distribution boards where the prospective fault current stays under that threshold. The C-curve means it trips between 5 and 10 times rated current, which suits moderate inrush loads like small motors, lighting banks, and transformer primaries without nuisance tripping. ## Key ratings and what they mean for fit The 20 A rating governs the continuous load it can carry — size the downstream cable and load to stay under this. The 10 kA breaking capacity is the maximum fault current it can safely interrupt at 400 V AC; if your panel's available fault current exceeds this, you need a current-limiting upstream device or a higher-rated breaker. The 4-pole configuration switches all three phases plus neutral (though the neutral pole is not switched — confirms no neutral conductor switching, so it's a switched-neutral type for TN systems where the neutral is not broken). The C-curve is the standard choice for general-purpose branch circuits in European-style distribution. ## Mounting and integration Snaps onto standard 35 mm DIN rail. At 4 modular width units (72 mm wide,), it occupies four 18 mm slots in the enclosure. Installation depth is 70 mm, and mounting position is any — no derating needed for horizontal or upside-down orientation. The IP20 rating means it's protected against finger contact but not moisture; install inside a closed panel or distribution board. Terminal touch protection is provided. ## Environmental and compliance Rated for ambient temperatures from -40 °C to +75 °C, with a note that at +55 °C and 95% humidity the breaker still operates within spec. Halogen-free and silicon-free construction matters for clean-room or sensitive electronics environments where outgassing can cause contact corrosion. Sealable — the toggle can be locked in the off position with a padlock hasp for lockout/tagout. Vibration resistance tested to 50 m/s² at 25–150 Hz per IEC 60068-2-6, so it holds up on machinery panels subject to continuous vibration.","metaTitle":"Siemens 5SL4420-7CC SENTRON MCB, 4P C 20 A 10 kA","metaDescription":"Siemens 5SL4420-7CC SENTRON miniature circuit breaker, 4-pole, C-curve, 20 A, 10 kA breaking capacity at 400 V AC. Active production. Quoted to order.","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":"5SL4420-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 10kA, 4-pole, C, 20 A Circuit breaker 400 V 10kA, 4-pole, C, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","Type Of Voltage":"AC","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","protection class IP":"IP20, with connected conductors","Overvoltage Category":"3","Design Of The Product":"5SL miniature circuit breakers","Number Of Poles / Note":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","circuit-breaker / Design":"5SL4CC","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"4","Tripping Characteristic Class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","Influence Of The Surrounding Temperature":"+55 °C, max. 95% humidity","operational current / at AC / rated value":"20 A","vibration resistance / acc. to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","with multi-phase operation / at AC / maximum":"440 V","Product Function / Neutral Conductor Switching":"No","with multi-phase operation / at AC / rated value":"440 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/19f7954568f4871c49fd8b52956e6629.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=233393&mlfb=5SL4420-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SL4420-7CC and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — no stock count or price figure is published here."},{"question":"What is 5SL4420-7CC's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm — the difference accounts for the front toggle and terminal clearance."},{"question":"What is 5SL4420-7CC's listed width (72 mm) on this component line?","answer":"Width is 72 mm, which corresponds to 4 modular width units at 18 mm per unit on standard DIN-rail enclosures."},{"question":"What compliance documentation does this brand provide for 5SL4420-7CC (RoHS, REACH, UL, IEC)?","answer":"The breaker is designed to EN 60898 and carries the IEC 81346-2 and DIN EN 61346-2 function designations. It is rated for overvoltage category 3 and pollution degree 2. RoHS/REACH compliance is standard for Siemens SENTRON products, though specific declarations are not listed in this evidence set."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4420-7CC","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/5SL4420-7CC 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}}