{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3640-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3640-6","canonicalUrl":"https://aoctrl.com/siemens/5SL3640-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3640-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL miniature circuit breaker, 5SL3640-6, 40 A, B characteristic, 3P+N, 400 V AC, 4.5 kA breaking capacity.","salesMarkdown":"The Siemens 5SL3640-6 is a SENTRON miniature circuit breaker rated 40 A at 400 V AC with a B tripping characteristic, switching 3 poles plus switched neutral (3P+N). This breaker occupies 4 width units (72 mm) on a DIN rail, with a depth of 76 mm and an installation depth of 70 mm — no surprise for a 4-pole MCB; it fits standard distribution boards without a deep enclosure. The operating range spans -40 to 75 °C, with periodic exposure to +55 °C and 95% humidity allowed, which covers unheated utility rooms and outdoor-rated enclosures. The B characteristic (3-5x In) means it holds through normal resistive load starts but trips fast on a dead short; don't use it on circuits with high inrush like large transformers or multiple motor starters without checking the trip curve. The neutral pole is switched (3P+N), so it disconnects the neutral as well as the phases — required in some regional wiring codes and useful for full isolation during maintenance.","metaTitle":"Siemens 5SL3640-6 SENTRON MCB, 40A B Curve 3P+N, 4.5kA","metaDescription":"Siemens 5SL3640-6 SENTRON miniature circuit breaker, 40 A, B characteristic, 3P+N, 4.5 kA breaking capacity per EN 60898. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"72 mm","title":"5SL3640-6","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 4.5 kA, 3+N-pole, B, 40 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","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":"4","Number of poles / Note":"3P+N","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":"40 A","Tripping characteristic class":"B","at DC / rated value / maximum":"72 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","Product function / neutral conductor switching":"Yes","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/8cad9540972ba5d5a89f5e809015002e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=488936&mlfb=5SL3640-6"},"ai":{"faq":[{"question":"Where can I buy the 5SL3640-6 and how do I get a price?","answer":"The 5SL3640-6 is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What are the key ratings of the 5SL3640-6?","answer":"40 A rated current, 400 V AC, B tripping characteristic, 3P+N poles, 4.5 kA breaking capacity per EN 60898 and IEC 60947-2. It occupies 4 width units (72 mm) on DIN rail and operates from -40 to 75 °C."},{"question":"Will the 5SL3640-6 drop into a panel specified for the 5SL6606-7YA without rewiring?","answer":"Not directly — the 5SL6606-7YA is a different SENTRON series with different ratings and possibly a different physical footprint. The 5SL3640-6 is a 40 A B curve 3P+N breaker at 4.5 kA; verify your panel's SCCR, current rating, and tripping characteristic before substituting. The DIN-rail mounting is standard, but terminal positions and busbar compatibility may differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3640-6","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/5SL3640-6 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}}