{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3763-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3763-3","canonicalUrl":"https://aoctrl.com/siemens/5SP3763-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3763-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3 series, 5SP3763-3 miniature circuit breaker, 1-pole, 63 A, E characteristic, 25 kA breaking capacity, 230 V AC, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SP3763-3 is a 1-pole miniature circuit breaker rated 63 A at 230 V AC, 50 Hz, with an E tripping characteristic and a 25 kA breaking capacity per EN 60898. The E characteristic (between standard B and C curves) trips at 10–20× rated current, so it's suited for circuits feeding small motors, pumps, or lighting ballasts that draw a brief startup surge a B-curve would misread as a fault. Accepts solid or stranded copper from 2.5 mm² up to 50 mm² at the saddle terminals — enough for the full 63 A without pigtailing. The 76.3 mm depth fits standard 80 mm deep enclosures; the 128 mm height is within the usual 2-row DIN rail spacing. Integrated locking slide accepts a padlock, wire seal, or cable tie for lockout/tagout. The sealable cover (yes) lets you secure the toggle position after commissioning — useful for circuits that must stay locked on or off during maintenance.","metaTitle":"Siemens 5SP3763-3 SENTRON MCB, 1P 63A E-Curve 25kA","metaDescription":"Siemens 5SP3763-3 SENTRON miniature circuit breaker, 1-pole 63A E-characteristic, 25kA breaking capacity per EN 60898. Active production, sourced to order. RFQ for current pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76.3 mm","title":"5SP3763-3","Height":"128 mm","Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 1-pole, E 63, 230/400 V","Mounting type":"standard rail","Number Of Poles":"1","Solid / Maximum":"50 mm²","Solid / Minimum":"2.5 mm²","lifecycle_stage":"current","Saddle Terminals":"Yes","Shock resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product Brand Name":"SENTRON","Stranded / Maximum":"50 mm²","Stranded / Minimum":"2.5 mm²","Degree of pollution":"3","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","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","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","Reference code / acc. to DIN EN 81346-2":"F","reference code / acc. to DIN EN 61346-2":"F","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/817db650280a32c0fda97ca8037a1859.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=254138&mlfb=5SP3763-3"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SP3763-3?","answer":"25 kA rated per EN 60898 at 230 V AC, which means it safely interrupts fault currents up to that level without damage."},{"question":"What does the E tripping characteristic mean?","answer":"The E curve trips at 10–20 times rated current, so it handles moderate inrush from small motors or transformers without nuisance tripping — a middle ground between B-curve (3–5×) and C-curve (5–10×)."},{"question":"What wire sizes does 5SP3763-3 accept?","answer":"Solid or stranded copper from 2.5 mm² minimum to 50 mm² maximum at the saddle terminals."},{"question":"Where can I buy 5SP3763-3 and get current pricing?","answer":"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 offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3763-3","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/5SP3763-3 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}}