{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1354-7KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1354-7KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU1354-7KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1354-7KK20 RCBO, 1P+N, C-curve, 20 A rated, 10 kA (EN 60898) / 20 kA (IEC 60947-2), 50 Hz, IP20, 2 MW.","salesMarkdown":"It protects a 1P+N final subcircuit at 230/240 V, 50 Hz, with a C-curve thermal-magnetic trip characteristic rated 20 A at 30 °C. The residual-current element is instantaneous-type (no intentional delay), so it trips without added time lag on earth faults. That dual rating means the device is certified for both residential-distribution boards and industrial panel applications where higher prospective fault currents are expected. ## Temperature derating — what the 20 A rating actually delivers The 20 A rating is valid at 30 °C ambient. At 40 °C the continuous current must be derated to 18.8 A; at 50 °C to 17.4 A; at 60 °C to 16.2 A; and at 70 °C to 14.6 A. These are per the manufacturer's published derating curve and are the values to use when sizing the RCBO in a warm enclosure — the 20 A nameplate is not the operating limit above 30 °C. The 5SU1354-7KK20 occupies 2 modular width units (36 mm) on a DIN rail, with a depth of 77 mm (70 mm installation depth).","metaTitle":"Siemens 5SU1354-7KK20 SENTRON RCBO, C-curve 20A, 10kA","metaDescription":"Siemens 5SU1354-7KK20 SENTRON RCBO, 1P+N, C-curve 20A, 10kA per EN 60898, 20kA per IEC 60947-2. Active production. Quoted to order. 77mm depth, 36mm width.","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 Hz","Product Designation":"RCBO","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","at 60 °C rated value":"16.2 A","at 65 °C rated value":"15.4 A","at 70 °C rated value":"14.6 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":"10 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":"20 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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a596bf78d51193220bd677ef7c7992c4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=103871&mlfb=5SU1354-7KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1354-7KK20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1354-7KK20?","answer":"10 kA per EN 60898 and 20 kA per IEC 60947-2. The dual rating covers both residential and industrial panel applications."},{"question":"What is the temperature derating for 5SU1354-7KK20?","answer":"The 20 A rating is at 30 °C. Derate to 18.8 A at 40 °C, 17.4 A at 50 °C, 16.2 A at 60 °C, and 14.6 A at 70 °C."},{"question":"Where can I buy 5SU1354-7KK20?","answer":"The 5SU1354-7KK20 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1354-7KK20","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/5SU1354-7KK20 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}}