{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3763","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3763","canonicalUrl":"https://aoctrl.com/siemens/5SP3763","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3763","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 series, main miniature circuit breaker (SHU), selective, 1-pole, 63 A, Class E, 25 kA per EN 60898, standard rail mount.","salesMarkdown":"## Selective main MCB for high-fault installations The Siemens SENTRON 5SP3763 is a 1-pole main miniature circuit breaker rated 63 A at 230 V AC, 50 Hz, with a 25 kA breaking capacity per EN 60898 — that's the short-circuit rating that decides whether this holds or blows upstream in a residential or infrastructure panel. The Class E tripping characteristic means it's selective (time-delayed) relative to downstream standard MCBs, so a fault on a branch circuit trips the branch breaker, not this main. That selectivity is the whole point: you don't lose the entire panel when a single lighting circuit shorts. That's the spec set for a service entrance or sub-distribution board, not a branch circuit. Depth is 92 mm, which is deeper than the 5SL series (76 mm) — so if you're swapping from a 5SL6563-7BB, check the enclosure depth. The extra depth houses the selective trip mechanism. Sealable with a lead seal, and the supply cord can be connected in any position. Vibration resistance is 2 g per IEC 60068-2-6, shock resistance 30 g for 11 ms — tough enough for transport and seismic zones. ## Environmental range and compliance Operating temperature spans -40 °C to 70 °C. Mechanical service life is 20,000 switching cycles typical.","metaTitle":"Siemens 5SP3763 SENTRON MCB, 1P 63A Class E, 25kA","metaDescription":"Siemens 5SP3763 SENTRON miniature circuit breaker, 1-pole, 63 A, Class E tripping characteristic, 25 kA breaking capacity per EN 60898. 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":{"Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","Mounting type":"standard rail","Number of poles":"1","lifecycle_stage":"current","Saddle Terminals":"Yes","Shock resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product brand name":"SENTRON","Degree of pollution":"3","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"IV","Design of the product":"Main miniature circuit breaker","Number of width units":"2","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Depth / of the enclosure":"92 mm","circuit-breaker / Design":"5SP3","Suitability for operation":"Residential buildings/infrastructure","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":"230 V","Supply voltage frequency / rated value":"50 Hz","Surge voltage resistance / rated value":"6 kV","Operating current / at AC / rated value":"63 A","Mounting type / other installation / Note":"With accessories on 35 mm standard mounting rail or busbar or screw fixing","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=237926&mlfb=5SP3763","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP3763/alternatives.json"},"ai":{"faq":[{"question":"When sourcing 5SP3763, what's the closest functional second-source — 5SL6563-7BB?","answer":"The 5SL6563-7BB is a 2-pole C-curve branch breaker, not a functional second-source for the 1-pole Class E selective main breaker 5SP3763. The 5SP3763 is deeper (92 mm vs 76 mm) and has a different trip characteristic — they serve different roles in the panel."},{"question":"What is 5SP3763's listed maximum (70 °C) on this component line?","answer":"The maximum operating temperature is 70 °C."},{"question":"What is 5SP3763's listed minimum (-40 °C) on this component line?","answer":"The minimum operating temperature is -40 °C."},{"question":"Will 5SP3763 drop into a panel that was specified around 5SL6563-7BB without rewiring?","answer":"No — the 5SP3763 is 92 mm deep versus 76 mm for the 5SL6563-7BB, so check enclosure depth. Also, the 5SP3763 is 1-pole while the 5SL6563-7BB is 2-pole (1P+N), so wiring and neutral handling differ. They are not drop-in interchangeable."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3763","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 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}}