{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-7CR40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-7CR40","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-7CR40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7CR40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU9356-7CR40 RCBO, 1P+N, Type A, 30 mA, C-Char, In: 40 A, Icn: 6 kA, Un AC: 230 V.","salesMarkdown":"The Siemens 5SU9356-7CR40 is a single-module RCBO combining overcurrent protection and 30 mA residual current detection in one DIN-rail unit. The Type A trip characteristic means it catches pulsating DC fault currents as well as sinusoidal AC — common on modern electronics, drives, and switched-mode supplies found in control panels. ## Deployment context Snap-on DIN-rail mounting for a standard 18 mm module width. The 1P+N format protects one phase and switches the neutral — typical for single-phase final circuits in residential, commercial, or light-industrial distribution boards where an RCD and MCB are combined to save rail space.","metaTitle":"Siemens 5SU9356-7CR40 RCBO, Type A, 30 mA, C-Char 40 A, 6 kA","metaDescription":"Siemens 5SU9356-7CR40 RCBO, 1P+N, Type A, 30 mA residual current, C characteristic, 40 A rated current, 6 kA breaking capacity, 230 V AC. Active lifecycle stage. Available 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=1440242&mlfb=5SU9356-7CR40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7CR40/alternatives.json"},"ai":{"faq":[{"question":"What is the rated breaking capacity of 5SU9356-7CR40?","answer":"The rated short-circuit breaking capacity (Icn) is 6 kA at 230 V AC, suitable for standard final subcircuits in distribution boards."},{"question":"What type of residual current does the 5SU9356-7CR40 detect?","answer":"It is a Type A RCBO, so it detects sinusoidal AC residual currents and pulsating DC residual currents — covering the fault patterns from rectifiers, drives, and switched-mode power supplies."},{"question":"Where can I buy 5SU9356-7CR40?","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/5SU9356-7CR40","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/5SU9356-7CR40 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}}