{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-0KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-0KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-0KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-0KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1356-0KK25, RCBO, 2-pole (1P+N), 25 A, B-curve, Type AC, 6 kA per EN 60898, 15 kA per IEC 60947-2, 36 mm (2 MW).","salesMarkdown":"The Siemens 5SU1356-0KK25 is a SENTRON RCBO combining overcurrent protection and residual current detection in a single 2-module-width (36 mm) package. Breaking capacity is 6 kA per EN 60898 and 15 kA per IEC 60947-2 — the higher figure applies when the RCBO is used as a distribution board main or where the prospective fault current exceeds 6 kA. The 1P+N configuration switches the phase only; the neutral is switched internally for isolation but not protected against overcurrent. At 30 °C ambient the unit carries the full 25 A; at 40 °C it derates to 23.5 A, at 50 °C to 21.75 A, and at 70 °C to 18.25 A. Mounting position is unrestricted, and the supply can enter from top or bottom, which simplifies busbar routing in a distribution board. Installation depth is 70 mm (77 mm overall), fitting standard flush-mount enclosures. IP20 applies only with the distribution board closed and conductors connected — the front face is finger-safe, but the terminals are not touch-proof with the cover open.","metaTitle":"Siemens 5SU1356-0KK25 SENTRON RCBO, 25A B-Curve 2-Pole 6kA","metaDescription":"Siemens 5SU1356-0KK25 SENTRON RCBO, 25A rated, B-curve, 2-pole 1P+N, Type AC residual current, 6kA breaking capacity (EN 60898). Active production. Quoted to order.","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 Hz","Product Designation":"RCBO","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","Number Of Poles / Note":"1P+N","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":"23.5 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","at 60 °C / rated value":"20.25 A","at 65 °C / rated value":"19.25 A","at 70 °C / rated value":"18.25 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Product Function / 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/dcd243993e82e3f9282f862f31b63920.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=37839&mlfb=5SU1356-0KK25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-0KK25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1356-0KK25?","answer":"6 kA per EN 60898 and 15 kA per IEC 60947-2. The 15 kA rating applies when the device is used under the industrial standard, which covers higher prospective fault currents than the domestic EN 60898 test sequence."},{"question":"What does the B-curve mean on this RCBO?","answer":"B-curve means the magnetic trip operates at 3 to 5 times the rated current (75–125 A for this 25 A unit). It's intended for resistive or general-purpose loads with low inrush — lighting, socket circuits, small appliances — rather than motor or transformer feeders that would need a C or D curve."},{"question":"Where can I buy 5SU1356-0KK25?","answer":"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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-0KK25","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/5SU1356-0KK25 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}}