{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3320-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3320-6","canonicalUrl":"https://aoctrl.com/siemens/5SL3320-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3320-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3320-6, 3-pole miniature circuit breaker, 20 A rated current, B tripping characteristic, 4.5 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens SENTRON 5SL3320-6 is a 3-pole miniature circuit breaker (MCB) rated 20 A with a B tripping characteristic. It protects branch circuits in residential and infrastructure panels against overload and short-circuit, with a breaking capacity of 4.5 kA per EN 60898 and IEC 60947-2. Rated 20 A at 400 V AC, this MCB handles a 3-phase load up to roughly 13.8 kW resistive. The 4.5 kA breaking capacity per EN 60898 covers most residential and light commercial fault levels — if your available fault current at the panel exceeds that, you need an upstream current-limiting device or a higher-rated breaker. The B characteristic (3–5× In) gives faster trip on moderate overloads than a C-curve, which matters when downstream wiring or devices have limited short-time withstand. At 3 width units (54 mm wide, 90 mm tall, 76 mm deep), it occupies the same footprint as other 5SL3-series breakers. Screw terminals accept 0.75 to 25 mm² solid or stranded copper — enough for the 20 A feed. Torque to 2.5–3 N·m. IP20 with conductors connected; mount in any position.","metaTitle":"Siemens SENTRON 5SL3320-6 MCB, 20 A, 3P, B-curve","metaDescription":"Siemens 5SL3320-6 SENTRON miniature circuit breaker, 20 A, 3-pole, B tripping characteristic, 4.5 kA breaking capacity per EN 60898. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"54 mm","title":"5SL3320-6","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 4.5 kA, 3-pole, B, 20 A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Energy limiting class":"3","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL3","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"20 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"4.5 kA","acc. to IEC 60947-2 / rated value":"4.5 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"Periodically +55°C, max. 95% humidity","with multi-phase operation / at AC / maximum":"440 V","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c8fda35e6e22686aad7232ded85b6593.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=488323&mlfb=5SL3320-6"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL3320-6?","answer":"4.5 kA per EN 60898 and also 4.5 kA per IEC 60947-2. That covers typical residential and light commercial fault levels; verify your available fault current at the panel before specifying."},{"question":"Will the 5SL3320-6 drop into a panel wired for a 5SL3120-6MB?","answer":"Yes — same 3-pole DIN-rail footprint, same 54 mm width (3 width units), same terminal range. The 5SL3120-6MB is a 20 A B-curve MCB in the same 5SL3 design family, so it swaps without rewiring. The difference is the 5SL3320-6 carries a 400 V rated voltage versus the 5SL3120-6MB's 230/400 V; check your supply voltage matches."},{"question":"How do I get current pricing and availability for the 5SL3320-6?","answer":"Submit an RFQ through this listing. The part is sourced to order via independent distribution; availability and current pricing are confirmed at quote time. No stock count or price is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3320-6","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/5SL3320-6 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}}