{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3406-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3406-7","canonicalUrl":"https://aoctrl.com/siemens/5SL3406-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3406-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3 series, 5SL3406-7 miniature circuit breaker, 4-pole, C-curve, 6 A rated, 400 V AC, 4.5 kA breaking capacity per EN 60898.","salesMarkdown":"The Siemens 5SL3406-7 is a 4-pole miniature circuit breaker from the SENTRON 5SL3 family, rated 6 A with a C tripping characteristic at 400 V AC. It breaks 4.5 kA per EN 60898 and IEC 60947-2, which covers most residential and light commercial service-entrance faults. The 4-pole form factor (4 width units, 72 mm wide) means it switches all three phases plus neutral — though note the neutral pole is not switched on this variant. Snaps onto standard DIN rail, accepts solid or stranded copper from 0.75 mm² up to 25 mm², and the screw terminals torque to 2.5–3 N·m. The IP20 rating (with conductors connected) is typical for enclosed panel mount — no washdown rating here, so keep it behind a gland plate. ## C-curve and 6 A — what that means on the line The C-curve trips at 5 to 10 times rated current (30–60 A magnetic trip), which suits moderate inrush loads like small motor starters, lighting banks, and transformer primaries. At 6 A it's sized for branch circuits pulling around 1.5 kW on a 400 V three-phase system. The 4.5 kA SCCR at 400 V is the standard domestic/infrastructure level — fine for most distribution boards, but check your available fault current if you're near a large transformer. The 72 mm width (4 modules) occupies standard DIN space — factor that into your fill count. Ambient operating range is -25 to +45 °C, with periodic excursions to +55 °C at up to 95% humidity.","metaTitle":"Siemens 5SL3406-7 SENTRON MCB, 4P C 6A 4.5kA","metaDescription":"Siemens 5SL3406-7 SENTRON 4-pole MCB, 6A C-curve, 400V AC, 4.5kA breaking capacity per EN 60898. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"72 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"4","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":"4","Number of poles / Note":"4P","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":"6 A","Tripping characteristic class":"C","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=315515&mlfb=5SL3406-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL3406-7/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3406-7","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/5SL3406-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}