{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-1CR25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-1CR25","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-1CR25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1CR25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9356-1CR25, RCD-operated circuit breaker (RCBO), 1P+N, 25 A, C-characteristic, 30 mA residual current, 6 kA per EN 60898, 2 MW, IP20.","salesMarkdown":"The Siemens 5SU9356-1CR25 is a SENTRON RCBO — a combined RCD and MCB in one 2-module-wide (36 mm) package. It protects a single-phase final subcircuit against overload, short-circuit, and earth leakage in one device, saving a DIN-rail position versus separate units. The residual-current element trips at 30 mA, Type AC (sinusoidal AC faults only — not for pulsed DC or smooth DC faults). Energy limitation class 3 means it lets through less fault energy than class 1 or 2 devices, reducing arc damage downstream. Depth is 77 mm, installation depth 70 mm — check your enclosure depth before panel layout; some shallow consumer units may need the 70 mm clearance. Mounts in any position. Supply can enter from top or bottom. IP20 rating applies only when installed in a distribution board with connected conductors — not rated for wet or dusty environments without an outer enclosure. ## Thermal derating — the real-world current At 40 °C the continuous current drops to 23.5 A; at 50 °C to 21.75 A. If your panel internal temperature runs hot — common in crowded enclosures or near other heat sources — size the upstream protection and cable accordingly. Insulation voltage rated 264 V, surge voltage resistance 4 kV.","metaTitle":"Siemens 5SU9356-1CR25 SENTRON RCBO, 25A C-curve 30mA 6kA","metaDescription":"Siemens 5SU9356-1CR25 SENTRON RCBO, 25A rated, 30mA residual current, C-curve, 6kA breaking capacity per EN 60898. Current-production part sourced to order. Quoted 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","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"25 A","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","Residual Current Type":"AC","Weight With Packaging":"280 g","at 30 °C rated value":"25 A","at 40 °C rated value":"23.5 A","at 45 °C rated value":"22.75 A","at 50 °C rated value":"21.75 A","at 55 °C rated value":"20.25 A","Energy Limitation Class":"3","according to EN 61346-2":"F","according to IEC 81346-2":"F","For Testing Equipment Minimum":"125 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","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","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=629342&mlfb=5SU9356-1CR25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-1CR25/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SU9356-1CR25's width and depth for panel layout?","answer":"Width is 36 mm (2 modular units), depth is 77 mm, installation depth 70 mm."},{"question":"Where can I buy 5SU9356-1CR25 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time — no stock figures or lead-time numbers published here."},{"question":"Will 5SU9356-1CR25 drop into a panel specified around 5SL6550-7BB?","answer":"Both are 2-MW (36 mm) DIN-rail RCBOs, but the 5SL6550-7BB is a different series with different breaking capacity and characteristic. The 5SU9356-1CR25 fits the same physical footprint but verify the electrical ratings — particularly the prospective short-circuit current at your panel — before substituting."},{"question":"What compliance documentation does Siemens provide for 5SU9356-1CR25?","answer":"The part carries EN 60898 rating (6 kA breaking capacity), is halogen-free and silicon-free, and is designed to overvoltage category III / pollution degree 2. Standard Siemens declarations of conformity (CE, UKCA) and RoHS/REACH statements are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-1CR25","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/5SU9356-1CR25 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}}