{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9353-7CR50","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9353-7CR50","canonicalUrl":"https://aoctrl.com/siemens/5SU9353-7CR50","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9353-7CR50","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 5SU9353-7CR50 RCBO, Icn 4.5 kA, 1P+N, Type A, 30 mA, C-Char, In 50 A, Un AC 230 V.","salesMarkdown":"## What this RCBO does in the panel The Siemens 5SU9353-7CR50 is a 1P+N residual current circuit breaker with overcurrent protection (RCBO) rated at 50 A with a C-trip curve, 30 mA Type A residual sensitivity, and a 4.5 kA breaking capacity at 230 V AC. It occupies a single modular DIN-rail space in a consumer unit or distribution board, combining earth-leakage and overcurrent protection for a final subcircuit. Type A residual detection means it catches pulsating DC fault currents — the kind rectified loads (SMPS, LED drivers, variable-speed drives) can generate — not just pure sinusoidal AC leakage. The 30 mA threshold is the standard for personal protection against indirect contact in residential and commercial final circuits.","metaTitle":"Siemens 5SU9353-7CR50 RCBO, 4.5kA, 1P+N, Type A, 30mA, C-50A","metaDescription":"Siemens 5SU9353-7CR50 RCBO, 4.5kA breaking capacity, 1P+N, Type A, 30 mA residual, C-curve 50 A, 230 V AC. Current production. Quoted 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=1440225&mlfb=5SU9353-7CR50","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9353-7CR50/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of this RCBO?","answer":"It is a 1P+N RCBO with a 4.5 kA breaking capacity, 30 mA Type A residual current sensitivity, C-curve overcurrent characteristic, 50 A rated current, and 230 V AC rated voltage."},{"question":"Where can I buy 5SU9353-7CR50?","answer":"This part is sourced to order against an RFQ through independent distribution channels. 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/5SU9353-7CR50","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/5SU9353-7CR50 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}}