{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-1CN25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-1CN25","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-1CN25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1CN25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole, 25 A rated, 30 mA residual current, C-curve, 6 kA breaking capacity per EN 60898, 2 MWU, IP20.","salesMarkdown":"The 5SU9356-1CN25: Rated 25 A at 30 °C ambient, but the thermal derating curve is published: 23.3 A at 40 °C, 22 A at 45 °C, 21.5 A at 50 °C, 20.8 A at 55 °C. If your enclosure runs warm — typical near a furnace controller or in a crowded panel — size the load to the derated value, not the 30 °C number. The C-curve (magnetic trip at 5–10× In) handles motor inrush and transformer loads without nuisance tripping on startup. The 30 mA AC residual-current trip (type AC) protects against sinusoidal earth faults — standard for general-purpose circuits, but not for pulsating DC or smooth DC faults (those need type A or F). ## Deployment context At 36 mm wide (2 MWU), it fits standard modular enclosures. The 77 mm depth (70 mm installation depth) leaves clearance for wiring behind the DIN rail.","metaTitle":"Siemens 5SU9356-1CN25 SENTRON RCBO, 2-pole, 25 A, 30 mA, C-c","metaDescription":"Siemens SENTRON 5SU9356-1CN25 RCBO, 2-pole, 25 A rated, 30 mA residual current, C-curve, 6 kA breaking capacity per EN 60898. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"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","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCD-operated circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"25 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"290 g","at 30 °C / rated value":"25 A","at 40 °C / rated value":"23.3 A","at 45 °C / rated value":"22 A","at 50 °C / rated value":"21.5 A","at 55 °C / rated value":"20.8 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"125 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","acc. to IEC 60947-2 / rated value":"6 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","insulation voltage (Ui) / rated value":"264 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Type Of Voltage / Of The Operating Voltage":"AC","Product Component / Neutral Conductor Switching":"Yes","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"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=800756&mlfb=5SU9356-1CN25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1CN25/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 5SU9356-1CN25 and how is it quoted for volume purchases?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock or price figures are published here."},{"question":"What is the depth of 5SU9356-1CN25?","answer":"The overall depth is 77 mm; the installation depth behind the DIN rail is 70 mm."},{"question":"What is the width of 5SU9356-1CN25?","answer":"Width is 36 mm, which corresponds to 2 modular width units (MWU) on a standard DIN-rail panel."},{"question":"Will 5SU9356-1CN25 drop into a panel specified around 5SU9306-1KK20?","answer":"Both are 2-pole RCBOs with a 30 mA AC residual-current trip and C-curve, but the 5SU9356-1CN25 is rated 25 A while the 5SU9306-1KK20 is a different current rating. The physical footprint (2 MWU, 36 mm wide) and DIN-rail mounting are the same, so it fits the same slot — but verify the load current matches your BOM line before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-1CN25","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/5SU9356-1CN25 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}}