{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1344-2RC63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1344-2RC63","canonicalUrl":"https://aoctrl.com/siemens/5SU1344-2RC63","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1344-2RC63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU1344-2RC63 RCBO, 63 A, 4-pole, 8 modules, D characteristic, Type AC, 30 mA residual current.","salesMarkdown":"It carries a D tripping characteristic for high-inrush loads and a Type AC 30 mA residual current sensitivity for sinusoidal earth faults. The D characteristic means the magnetic trip is set to 10–20× In (630–1260 A instantaneous), sized for loads with high starting currents — motor starters, small transformers, or discharge lighting banks — without nuisance tripping on inrush. The 30 mA residual sensitivity covers personnel protection (indirect contact) and fire prevention for AC circuits; At 63 A per pole, this RCBO handles 3-phase distribution subfeeds up to that current. Eight module spaces on a DIN rail means it fills about 144 mm of rail width — plan the enclosure fill factor accordingly.","metaTitle":"Siemens 5SU1344-2RC63 RCBO 63 A 4-pole D curve 30mA","metaDescription":"Siemens 5SU1344-2RC63 RCBO, 63 A, 4-pole, 8 modules, D characteristic, Type AC 30mA. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e2e6ddacb60a42cb10c149ae3a30b8e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=451668&mlfb=5SU1344-2RC63","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1344-2RC63/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU1344-2RC63 description and key ratings?","answer":"It is an RCBO rated 63 A, 4-pole, 8 modules wide, with D characteristic and Type AC 30 mA residual current protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1344-2RC63","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/5SU1344-2RC63 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}}