{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-1KK16","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-1KK16","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-1KK16","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1KK16","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 5SU9356-1KK16, 1P+N, 16 A at 30 °C, C-curve, 6 kA per EN 60898, 10 kA per IEC 60947-2, 2 MW, instantaneous.","salesMarkdown":"## What it is — and what the ratings mean for fit The Siemens 5SU9356-1KK16 is a SENTRON RCD-operated circuit breaker (RCBO) — a combined residual-current device and miniature circuit breaker in one unit. It protects a single-phase final subcircuit against overload, short-circuit, and earth leakage in one DIN-rail footprint. Rated 16 A at 30 °C with a C tripping characteristic, meaning it handles moderate inrush from motorized or capacitive loads (pumps, small compressors, lighting ballasts) while still clearing sustained overloads. The C-curve is the standard choice for general-purpose commercial and light-industrial branch circuits where the load isn't purely resistive. Breaking capacity is 6 kA per EN 60898 (the MCB standard) and 10 kA per IEC 60947-2 (the industrial breaker standard). The higher 10 kA figure governs when the device is applied as a circuit breaker in an industrial distribution board — it will safely interrupt a fault up to 10 kA without welding contacts or cascading failure upstream. The 1P+N configuration protects the live pole only; the neutral pole is switched but not protected. This is standard for single-phase final circuits where the neutral is not expected to see overload current. ## Deployment context — where this part lands Width is 36 mm (2 modular units), depth 77 mm. Supply can enter from top or bottom. Rated for overvoltage category III and pollution degree 2 — the typical environment inside a building's main or sub-distribution board. IP20 applies when installed in an enclosed distribution board with conductors connected, which is the normal case; the device itself is not rated for exposed or washdown locations. Ambient temperature range is -40 °C to 75 °C, but the current-carrying capacity derates above 30 °C: 15.04 A at 40 °C, 14.56 A at 45 °C, 13.92 A at 50 °C, 12.96 A at 55 °C. If the panel ambient runs hot (e.g., adjacent to a drive cabinet or in a roof space), size the upstream protection for the derated figure, not the 16 A nameplate. ## Compliance documentation The device carries ratings per EN 60898 and IEC 60947-2, which are the governing standards for MCB and industrial circuit-breaker performance in Europe and many other jurisdictions. Halogen-free and silicon-free construction supports compliance with RoHS and REACH material declarations — documentation is available from Siemens on request.","metaTitle":"Siemens 5SU9356-1KK16 SENTRON RCBO, 16A C-curve, 6/10kA","metaDescription":"Siemens 5SU9356-1KK16 SENTRON RCBO, 1P+N, 16A (30°C), C-curve, 6kA (EN 60898) / 10kA (IEC 60947-2). 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":"280 g","at 30 °C rated value":"16 A","at 40 °C rated value":"15.04 A","at 45 °C rated value":"14.56 A","at 50 °C rated value":"13.92 A","at 55 °C rated value":"12.96 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":"6 kA","insulation voltage (Ui) rated value":"264 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"10 kA","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=629358&mlfb=5SU9356-1KK16","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1KK16/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 5SU9356-1KK16?","answer":"The depth is 77 mm, with an installation depth of 70 mm into the distribution board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-1KK16","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/5SU9356-1KK16 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}}