{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-7KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-7KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-7KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9356-7KK20, RCD-operated circuit breaker, 1P+N, 20 A, 30 mA, Type A, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 2 MW, 230/240 V AC, halogen-free, silicon-free.","salesMarkdown":"It protects a single-phase final subcircuit against overload, short-circuit, and earth leakage in one go, saving a DIN-rail slot over separate MCB + RCCD. The 30 mA residual sensitivity (Type A) catches pulsating DC fault currents from electronics and VFDs — the sort of leakage you get from a variable-speed drive feeding a bearing-lube pump out here in the grease. At 40 °C it derates to 18.8 A, at 45 °C to 18.2 A, at 50 °C to 17.4 A, and at 55 °C to 16.2 A. If your panel runs hot near a drive cabinet or a motor junction box, size the load to the derated number — don't count on the full 20 A above 30 °C. That's the right choice for a mixed load with some inductive kick. The design is instantaneous (no intentional delay), so it clears earth faults fast — important for personnel protection on a 30 mA RCD. The energy limitation class 3 keeps let-through energy low, protecting downstream wiring and connected gear. Two modular width units (36 mm) — check your panel fill factor; it takes the space of two single-pole MCBs. Supply can come from either top or bottom, which saves rework when you're wiring a crowded gland plate. IP20 with the distribution board installed and conductors connected; that's the standard for enclosed panels, not for open washdown areas.","metaTitle":"Siemens 5SU9356-7KK20 SENTRON RCBO, 20A, 30mA, 6kA, 1P+N","metaDescription":"Siemens SENTRON 5SU9356-7KK20 RCBO, 20A, 30mA, Type A, 6kA (EN 60898), 10kA (IEC 60947-2), 1P+N, 2 MW, 230/240V AC, halogen-free. Active production. Order to RFQ.","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":"20 A","at 40 °C rated value":"18.8 A","at 45 °C rated value":"18.2 A","at 50 °C rated value":"17.4 A","at 55 °C rated value":"16.2 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=629379&mlfb=5SU9356-7KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KK20/alternatives.json"},"ai":{"faq":[{"question":"What is 5SU9356-7KK20's listed depth?","answer":"Overall depth is 77 mm; installation depth behind the panel face is 70 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-7KK20","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/5SU9356-7KK20 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}}