{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3763-2","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3763-2","canonicalUrl":"https://aoctrl.com/siemens/5SP3763-2","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3763-2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3763-2, 1-pole miniature circuit breaker, 63 A, E tripping characteristic, 25 kA breaking capacity per EN 60898, 230 V AC, 50 Hz, busbar mount.","salesMarkdown":"## Rated for the meter panel — 63 A, E-curve, 25 kA The Siemens 5SP3763-2 is a 1-pole SENTRON main miniature circuit breaker rated 63 A at 230 V AC, 50 Hz, with an E tripping characteristic and a 25 kA breaking capacity certified per EN 60898. The E-curve is the key selection callout here: it trips magnetically between 10× and 20× In, so it holds through the inrush of larger transformers or long cable runs where a B- or C-curve would nuisance-trip. For a main breaker feeding a distribution board, that delayed magnetic release is exactly what keeps the service entrance from dropping on a downstream transformer energization. ## Busbar mount, 1.5 width units — panel fit Mounts directly on a 40-mm busbar system per DIN 43870 Part 2, which is the standard grid for European meter-panel layouts. The 1.5 width-unit footprint (roughly 27 mm) and 89.5 mm depth let it slot into the same cutouts as other SENTRON 5SP3 devices — no re-spacing needed if you're swapping into an existing panel. The spring-loaded outgoing terminal is tool-less for the load side; the infeed uses a box terminal for the line side. Mechanical endurance is 20 000 switching cycles typical. Shock-rated to 30 g (3 impacts, 11 ms duration) and vibration-rated to 2 g per IEC 60068-2-6 (20 frequency cycles, 5 to 150 Hz).","metaTitle":"Siemens 5SP3763-2 SENTRON MCB, 63 A, E-Curve, 1P, 25 kA","metaDescription":"Siemens 5SP3763-2 SENTRON miniature circuit breaker, 63 A rated, E tripping characteristic, 1-pole, 25 kA breaking capacity per EN 60898. Current lifecycle stage. Quoted on request","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"89.5 mm","Solid":"2.5 ... 50 mm²","title":"5SP3763-2","Height":"151.3 mm","Maximum":"440 V","Minimum":"110 V","Sealable":"Yes","Stranded":"2.5 ... 50 mm²","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 1-pole, E 63A, 230/400 V (block with L1, L2, L3)","Wertebereich":"-25 ... +55 °C","Mounting type":"Busbar","Number of poles":"1","lifecycle_stage":"current","Shock resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product brand name":"SENTRON","Ambient temperature":"-40 ... +70 °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":"1.5","Infeed at box terminal":"Yes","Number of poles / Note":"1P","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","Current / at AC / rated value":"63 A","Tripping characteristic class":"E","acc. to EN 60898 / rated value":"25 kA","Position / of power supply cord":"Stipulated by installation in the lower section of the meter panel","Insulation voltage / rated value":"690 V","Supply voltage / at AC / rated value":"230 V","Supply voltage frequency / rated value":"50 Hz","Surge voltage resistance / rated value":"6 kV","Mounting type / other installation / Note":"On 40-mm busbar system in compliance with DIN 43870 Part 2","Outgoing Feeder Via Spring-Loaded Terminal":"Yes","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/a4df51469631136700323c240e9c8521.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=467905&mlfb=5SP3763-2"},"ai":{"faq":[{"question":"What wire sizes does 5SP3763-2 accept?","answer":"Solid or stranded conductors from 2.5 mm² up to 50 mm²."},{"question":"What is the depth of 5SP3763-2?","answer":"89.5 mm, plus 76.3 mm enclosure depth."},{"question":"Where can I buy 5SP3763-2?","answer":"Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3763-2","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/5SP3763-2 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}}