{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-8CN40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-8CN40","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-8CN40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-8CN40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU9356-8CN40, RCBO 1+N 6 kA CN D char. type A Construction line, 40 A.","salesMarkdown":"It belongs to the Construction line series, designed for final subcircuit protection in commercial and residential panels where both overcurrent and earth leakage protection are required in a single module. Snap-on DIN rail mounting for standard 1+N modular width. D-curve magnetic trip (10–20× In) suits loads with high starting currents — think small refrigeration compressors, pumps, or fluorescent banks with electronic ballasts — where a C-curve would nuisance-trip on energisation.","metaTitle":"Siemens 5SU9356-8CN40 RCBO 1+N 6 kA D char. Type A, 40 A","metaDescription":"Siemens 5SU9356-8CN40 RCBO, 1+N pole, 6 kA breaking capacity, D characteristic, Type A, 40 A. Current production lifecycle stage. Quoted 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/79f6610cfebb3bc98ed563eb1e55c601.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=993532&mlfb=5SU9356-8CN40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-8CN40/alternatives.json"},"ai":{"faq":[{"question":"What is the RCBO rating and breaking capacity of 5SU9356-8CN40?","answer":"It is a 40 A, 1+N pole RCBO with a 6 kA breaking capacity, D characteristic, Type A residual current protection, from the Siemens Construction line."},{"question":"Where can I buy 5SU9356-8CN40 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What does the D characteristic mean on this RCBO?","answer":"The D characteristic (magnetic trip 10–20× In) is designed for loads with high inrush currents such as motors, transformers, or discharge lighting, reducing the risk of nuisance tripping during start-up."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-8CN40","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/5SU9356-8CN40 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}}