{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3863-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3863-3","canonicalUrl":"https://aoctrl.com/siemens/5SP3863-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3863-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 series, 3-pole miniature circuit breaker, 63 A rated, E tripping characteristic, 25 kA breaking capacity at 400 V AC, 440 V max, standard rail mount.","salesMarkdown":"The Siemens 5SP3863-3 is a 3-pole miniature circuit breaker from the SENTRON 5SP3 series, rated at 63 A with an E tripping characteristic and a 25 kA breaking capacity at 400 V AC. The E tripping characteristic is a less common curve — between C and D in terms of magnetic trip threshold — designed for circuits with moderate inrush, such as certain motor or transformer loads where a C-curve might nuisance-trip but a D-curve would be too slow for cable protection. The 4.5 width units mean it occupies 4.5 modules of 18 mm each — 81 mm of rail space. The integrated locking slide accepts a padlock, wire seal, or cable ties for lockout/tagout compliance.","metaTitle":"Siemens 5SP3863-3 SENTRON MCB, 3P 63A E-Curve 25kA","metaDescription":"Siemens 5SP3863-3 SENTRON 3-pole MCB, 63 A rated, E tripping characteristic, 25 kA breaking capacity at 400 V AC. Current production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76.3 mm","Solid":"2.5 ... 50 mm²","title":"5SP3863-3","Height":"128 mm","Maximum":"440 V","Minimum":"110 V","Sealable":"Yes","Stranded":"2.5 ... 50 mm²","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 3x 1-pole, E 63, 400V","Mounting type":"standard rail","During Storage":"-40 ... +70 °C","Number of poles":"3","lifecycle_stage":"current","Saddle Terminals":"Yes","Shock resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP40, with connected conductors","Overvoltage category":"IV","Design of the product":"Main miniature circuit breaker","Number of width units":"4.5","Infeed at box terminal":"Yes","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Depth / of the enclosure":"76.3 mm","circuit-breaker / Design":"5SP3","Suitability for operation":"Residential buildings/infrastructure","Design of the locking device":"Integrated locking slide, lockable by means of a lock, wire seal and cable ties","Current / at AC / rated value":"63 A","Tripping characteristic class":"E","acc. to EN 60898 / rated value":"25 kA","Position / of power supply cord":"Any","Insulation voltage / rated value":"690 V","Supply voltage / at AC / rated value":"400 V","Supply voltage frequency / rated value":"50 Hz","Surge voltage resistance / rated value":"6 kV","Mounting type / other installation / Note":"On standard mounting rail 35 mm acc. to EN 60715","Vibration resistance / acc. to IEC 60068-2-6":"2 g, 20 frequency cycles 5 to 150 to 15 Hz","Display version / for switch position indicator":"OFF = green, ON = red","Mechanical service life (switching cycles) / typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4d6909620307a3a328c0ebf0b43b4d99.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=196942&mlfb=5SP3863-3"},"ai":{"faq":[{"question":"Where can I buy the 5SP3863-3 and how do I get a price?","answer":"The 5SP3863-3 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of the 5SP3863-3?","answer":"The depth is 76.3 mm, which is the overall dimension including the enclosure and terminals."},{"question":"What conductor sizes does the 5SP3863-3 accept?","answer":"It accepts solid and stranded conductors from 2.5 mm² up to 50 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3863-3","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/5SP3863-3 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}}