{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY3215-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY3215-7","canonicalUrl":"https://aoctrl.com/siemens/5SY3215-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY3215-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY3 series, miniature circuit breaker (MCB), 2-pole, C-curve, 1.6 A rated current, 400 V AC, breaking capacity 4.5 kA per EN 60898 / 6 kA per IEC 60947-2.","salesMarkdown":"The Siemens 5SY3215-7 is a 2-pole miniature circuit breaker from the SENTRON 5SY3 series, rated 1.6 A with a C-curve tripping characteristic. That C-curve means it holds through mild inrush (5–10× rated current) and trips fast on a hard short — standard for general-purpose branch circuits feeding motor starters, contactor coils, or control transformers in a panel. The 400 V AC rating (overvoltage category III) covers the typical 400/230 V three-phase distribution bus. Breaking capacity sits at 4.5 kA per EN 60898 and 6 kA per IEC 60947-2; for UL 1077 / CSA C22.2 No. 235 installations it's rated 5 kA at AC. That's enough for most secondary distribution panels where the upstream transformer limits fault current below 6 kA. On the DC side it handles up to 72 V with a 15 kA interrupting rating per IEC 60947-2 — useful for control bus protection in the same enclosure. Mounting is snap-on DIN rail (quick assembly system), any position, and the 36 mm width (2 width units) takes two slots in a standard 18 mm/module rail. Terminal range accepts 0.75 to 35 mm² solid or stranded — big enough for a 6 mm² feed from the busbar and a 2.5 mm² downstream tap without pigtails. Combined terminals top and bottom mean you can land a busbar fork on the same clamp as the outgoing wire. Sealable terminals allow the panel builder to lock the cover screws after commissioning, preventing casual tampering. Humidity tolerance is specified up to 95% at 55 °C, derating to 35% at 75 °C.","metaTitle":"Siemens 5SY3215-7 SENTRON MCB, 2-pole C-curve 1.6 A, 400 V","metaDescription":"Siemens 5SY3215-7 SENTRON miniature circuit breaker, 2-pole, C-curve, 1.6 A, 400 V AC. Breaking capacity 4.5 kA (EN 60898) / 6 kA (IEC 60947-2). Active production, available to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +55 °C","Mounting type":"Quick assembly system","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +75 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY3","Current / at AC / rated value":"1.6 A","Tripping characteristic class":"C","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"4.5 kA","Position / of power supply cord":"Any","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at DC / acc. to IEC 60947-2 / rated value":"15 kA","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 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","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in","AWG number / as coded connectable conductor cross section":"18 ... 4"}},"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=183676&mlfb=5SY3215-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY3215-7/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SY3215-7 and get a price?","answer":"The 5SY3215-7 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the breaking capacity of 5SY3215-7?","answer":"Breaking capacity is 4.5 kA per EN 60898, 6 kA per IEC 60947-2, 5 kA per UL 1077 / CSA C22.2 No. 235 at AC, and 15 kA at DC (72 V max) per IEC 60947-2."},{"question":"What wire sizes does 5SY3215-7 accept?","answer":"Terminals accept 0.75 to 35 mm² solid or stranded copper — enough for a 6 mm² busbar feed and a 2.5 mm² branch circuit on the same clamp."},{"question":"What compliance documentation is available for 5SY3215-7?","answer":"The breaker carries approvals per EN 60898, IEC 60947-2, UL 1077, and CSA C22.2 No. 235. It is halogen-free and silicon-free. Standard Siemens compliance documentation (CE, UKCA, RoHS, REACH) applies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY3215-7","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/5SY3215-7 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}}