{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3763-2XX02","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3763-2XX02","canonicalUrl":"https://aoctrl.com/siemens/5SP3763-2XX02","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3763-2XX02","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 series, 1-pole main miniature circuit breaker, 63 A, E tripping characteristic, 25 kA rated short-circuit capacity per EN 60898, 230/400 V AC, busbar mount.","salesMarkdown":"The Siemens SENTRON 5SP3763-2XX02 is a 1-pole main miniature circuit breaker rated 63 A at 230/400 V AC with an E tripping characteristic. The solid and stranded conductor range of 2.5 to 50 mm² covers everything from a 2.5 mm² lighting circuit tail up to a 50 mm² main feeder, so it serves as both the service entrance breaker and a branch protector in the same enclosure. Mounting is on a 40 mm busbar system per DIN 43870 Part 2, the standard spacing for European meter-panel infrastructure. The 1.5 width units (approx. 27 mm per unit) mean it occupies 40.5 mm of DIN-rail space — wider than a standard 1-pole MCB, which is typical for a main breaker with higher cross-section terminals. Because this is a current-production SENTRON 5SP3-series part, compliance documentation (CE, RoHS, REACH) is available from Siemens on request. The overvoltage category IV rating (6 kV surge resistance) confirms it is designed for the utility-side of the meter, not just downstream distribution. ## Deployment context This breaker is built for residential and infrastructure meter panels — the 5SP3 series is Siemens' dedicated main-switch MCB line for that segment. The infeed at the box terminal and the outgoing feeder via spring-loaded terminal are both designed for the wiring sequence of a DIN 43870 meter panel: incoming supply from the utility connects at the bottom, outgoing circuits leave from the top. The switch position indicator (OFF = green, ON = red) gives a quick visual status check without needing a multimeter. The mechanical service life of 20 000 switching cycles, combined with shock resistance of 30 g (11 ms half-sine) and vibration resistance of 2 g per IEC 60068-2-6, means it holds up in a panel that sees occasional mechanical shock from contactor operation or door slams — not a continuous-vibration environment like a machine tool.","metaTitle":"Siemens SENTRON 5SP3763-2XX02 MCB, 1P, 63 A, E-Characteristi","metaDescription":"Siemens SENTRON 5SP3763-2XX02 miniature circuit breaker, 1-pole, 63 A, E tripping curve, 25 kA per EN 60898, 230/400 V. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Solid":"2.5 ... 50 mm²","Maximum":"440 V","Minimum":"110 V","Sealable":"Yes","Stranded":"2.5 ... 50 mm²","Rated Value":"25 kA","Mounting type":"Busbar","During Storage":"-40 ... +70 °C","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":"-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":"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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=97061&mlfb=5SP3763-2XX02","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP3763-2XX02/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SP3763-2XX02 and get a price?","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 commercial offer."},{"question":"What does the E tripping characteristic mean for this breaker?","answer":"The E curve trips magnetically between 10× and 20× the rated current (63 A), so it passes high inrush currents from distribution transformers or capacitor banks without nuisance tripping, while still clearing a bolted fault within the 25 kA breaking capacity."},{"question":"Will 5SP3763-2XX02 drop into a panel specified around 5SL6563-7BB?","answer":"No — the 5SL series uses a different mounting footprint and terminal arrangement. The 5SP3763-2XX02 mounts on a 40 mm busbar system per DIN 43870 Part 2, while the 5SL series is designed for standard DIN-rail mounting in distribution boards. Rewiring and busbar changes would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3763-2XX02","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/5SP3763-2XX02 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}}