{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9353-7CR40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9353-7CR40","canonicalUrl":"https://aoctrl.com/siemens/5SU9353-7CR40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9353-7CR40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU9 series RCBO, 1P+N, 40 A C-characteristic, 30 mA Type A, 4.5 kA breaking capacity, 230 V AC.","salesMarkdown":"It combines a 40 A C-characteristic MCB with a 30 mA Type A RCD in a single DIN-rail module, rated at 4.5 kA breaking capacity on 230 V AC. The C-curve means it's sized for motor and lighting circuits with moderate inrush — the magnetic trip holds through starting surges up to 5–10× rated current, then clears a hard fault before the cable gets hot. The 1P+N format takes a single module width, so it's a direct fit for compact consumer units or sub-distribution panels where space is tight. Type A RCD detects both sinusoidal AC fault currents and pulsating DC fault currents — that's the right choice for circuits feeding electronics, VFDs, or washing machines where a plain AC type would miss half the fault signature.","metaTitle":"Siemens 5SU9353-7CR40 RCBO, 40A C-Char 30mA Type A 4.5kA","metaDescription":"Siemens 5SU9353-7CR40 RCBO, 1P+N, 40A C-curve, 30mA Type A RCD, 4.5kA breaking capacity, 230V AC. Current lifecycle stage. Sourced to order.","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/79f6610cfebb3bc98ed563eb1e55c601.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1440224&mlfb=5SU9353-7CR40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9353-7CR40/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 5SU9353-7CR40?","answer":"It's a 1P+N RCBO with a 40 A C-characteristic MCB, 30 mA Type A RCD, 4.5 kA breaking capacity at 230 V AC."},{"question":"Where can I buy the 5SU9353-7CR40?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9353-7CR40","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/5SU9353-7CR40 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}}