{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9353-1KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9353-1KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU9353-1KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9353-1KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9353-1KK20 RCBO, 1P+N, type AC, 30 mA, C-curve, 20 A, 4.5 kA per EN 60898, 230/240 V AC, 2 MW (36 mm), IP20.","salesMarkdown":"It protects a single-phase final subcircuit (1P+N, neutral switched) against earth faults (30 mA, type AC, instantaneous) and overload/short-circuit (C-curve, 20 A, 4.5 kA breaking capacity per EN 60898). This is a DIN-rail component for distribution boards and sub-distribution panels. The 30 mA residual-current element (type AC, instantaneous) detects sinusoidal AC earth faults only — not pulsed DC or smooth DC. If the downstream load includes VFDs, LED drivers, or single-phase rectifiers, a type A or F RCBO would be required instead. Surge voltage withstand is 4 kV, and surge current withstand (8/20 µs) is 1 kA. Operating frequency is 50/60 Hz, supply voltage 230/240 V AC. Installation depth is 70 mm plus the 77 mm overall depth allows for wiring space in standard 150 mm deep enclosures. The IP20 rating applies only when the distribution board is installed and conductors are connected — not for open-panel or wet-area mounting. Power dissipation per pole in hot operating state is 0.75 W at rated current — relevant for thermal derating in multi-device enclosures. Halogen-free and silicon-free construction simplifies disposal compliance and avoids outgassing concerns in sealed cabinets.","metaTitle":"Siemens 5SU9353-1KK20 SENTRON RCBO, 1P+N, 20 A, 30 mA, C-Cur","metaDescription":"Siemens SENTRON 5SU9353-1KK20 RCBO, 1P+N, 20 A, 30 mA, type AC, C-curve, 4.5 kA per EN 60898. Active production. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"36 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"230/240 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCD-operated circuit breaker","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Weight With Packaging":"320 g","at 30 °C rated value":"20 A","Energy Limitation Class":"3","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"1","according to EN 60898 rated value":"4.5 kA","insulation voltage (Ui) rated value":"264 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","Surge Current Resistance At (8/20) μS":"1 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating Cycles) Typical":"10 000","for rated value of the current at AC in hot operating state per pole":"0.75 W"}},"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=1447809&mlfb=5SU9353-1KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9353-1KK20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU9353-1KK20 and get current pricing?","answer":"The 5SU9353-1KK20 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key dimensions of 5SU9353-1KK20?","answer":"Width is 36 mm (2 modular units), depth is 77 mm, height is 90 mm, installation depth is 70 mm."},{"question":"What is the breaking capacity of 5SU9353-1KK20?","answer":"The breaking capacity is 4.5 kA according to EN 60898, at 230/240 V AC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9353-1KK20","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/5SU9353-1KK20 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}}