{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL3363-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL3363-7","canonicalUrl":"https://aoctrl.com/siemens/5SL3363-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SL3363-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL3363-7 miniature circuit breaker, 3-pole, C-curve, 63 A, 4.5 kA breaking capacity at 400 V AC.","salesMarkdown":"The Siemens 5SL3363-7 is a SENTRON 3-pole miniature circuit breaker rated 63 A at 30 °C with a C tripping characteristic (5–10× In magnetic trip), breaking 4.5 kA per IEC 60898 and IEC 60947-2 at 400 V AC. The C-curve is the standard choice for motor-starter and transformer primary protection where inrush is moderate; for purely resistive loads a B-curve would trip faster on fault, but C is what the spec calls out here. Temperature derating is baked in: at 40 °C ambient the continuous rating drops to 59.18 A, at 45 °C to 57.96 A, and at 55 °C to 52.93 A. The 10 000 mechanical switching cycles typical service life is adequate for a distribution board seeing a few operations per year; for frequent switching duty (daily or weekly) you'd want a contactor ahead of it. Mounting position is any, which simplifies panel layout — no restriction on horizontal or inverted installation. Snap-on DIN rail mounting, any position. The 3-module width (54 mm) matches the standard modular grid; plan for the derated current at the panel's expected ambient temperature, not the 30 °C nameplate. The sealable feature accepts a standard padlock hasp for lockout.","metaTitle":"Siemens 5SL3363-7 SENTRON MCB, 3P C-Curve 63A 4.5kA","metaDescription":"Siemens 5SL3363-7 SENTRON miniature circuit breaker, 3-pole, C-curve, 63 A, 4.5 kA at 400 V AC. Current lifecycle production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"3P","Number Of Poles":"3","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","at AC / rated value":"63 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","at 30 °C / rated value":"63 A","at 40 °C / rated value":"59.18 A","at 45 °C / rated value":"57.96 A","at 55 °C / rated value":"52.93 A","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"3","Tripping Characteristic Class":"C","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","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Product Component / 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":"https://cdn.aoctrl.com/032db12cb0cdfb84a598b74ef938fc6f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=403372&mlfb=5SL3363-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL3363-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL3363-7?","answer":"The 5SL3363-7 is rated 4.5 kA per both IEC 60898 and IEC 60947-2 at 400 V AC. This is the maximum fault current it can safely interrupt."},{"question":"How do I get current pricing and availability for the 5SL3363-7?","answer":"This part 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":"Will the 5SL3363-7 drop into a panel specified around the 5SL4363-7?","answer":"Yes. Both are 3-pole, 63 A, C-curve SENTRON MCBs with identical 3-module DIN rail footprint and terminal layout. The only difference is breaking capacity: 4.5 kA for the 5SL3363-7 versus 6 kA for the 5SL4363-7. No rewiring or panel modification is needed."},{"question":"What is the temperature derating for the 5SL3363-7?","answer":"At 40 °C the continuous rating is 59.18 A; at 45 °C it drops to 57.96 A; at 55 °C it is 52.93 A. Always size the load to the derated figure for the panel's actual ambient temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL3363-7","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/5SL3363-7 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}}