{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-8CN25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-8CN25","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-8CN25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-8CN25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU9356-8CN25 RCBO, 1+N 6 kA, D characteristic, type A, Construction line, 25 A.","salesMarkdown":"Type A residual detection catches pulsating DC fault currents (typical from rectified loads like switched-mode supplies, LED drivers, or VFD front-ends) that a plain AC-sensitive RCD would miss. The 1+N form factor — switching both line and neutral, with overcurrent protection on the line pole only — fits the common single-phase final-circuit layout in European-style distribution boards. ## Panel integration Snap-on DIN rail mount, 2-module width (36 mm). The Construction line uses the same busbar comb footprint as the standard 5SY MCBs and 5SM RCCBs, so it slots into an existing distribution board layout without re-drilling or re-bussing. Neutral bar connection on the right-side terminal; line in at top, load out at bottom — standard wiring order for a 1+N RCBO.","metaTitle":"Siemens 5SU9356-8CN25 RCBO 1+N 6 kA D char. 25 A","metaDescription":"Siemens 5SU9356-8CN25 RCBO, 1+N poles, 6 kA breaking capacity, D characteristic, type A, 25 A, Construction line. 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=993530&mlfb=5SU9356-8CN25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-8CN25/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU9356-8CN25 used for?","answer":"It is a 1+N-pole RCBO rated 25 A with a 6 kA breaking capacity, D characteristic, and type A residual current sensitivity — used for final subcircuit protection in commercial and light industrial distribution boards where motor, transformer, or LED loads require high inrush tolerance and pulsating DC fault detection."},{"question":"Where can I buy the 5SU9356-8CN25?","answer":"The part is sourced 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/5SU9356-8CN25","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/5SU9356-8CN25 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}}