{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-6KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-6KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-6KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-6KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 1P+N, 40 A (30 °C), Type B, 6 kA (EN 60898) / 10 kA (IEC 60947-2), 50 Hz, 230/240 V AC, 2 MW, halogen-free, silicon-free, IP20.","salesMarkdown":"It is rated 40 A at 30 °C ambient with a Type B tripping characteristic, meaning it trips instantaneously on short-circuit and on overcurrent with a curve that allows moderate inrush without nuisance trips. The unit is designed for 50 Hz, 230/240 V AC supply and carries a breaking capacity of 6 kA per EN 60898 and 10 kA per IEC 60947-2. The 40 A rating is at 30 °C; the unit derates to 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, 32.4 A at 55 °C and 60 °C, 30.8 A at 65 °C, and 29.2 A at 70 °C. This derating curve is critical for panel builders — if your enclosure runs warm, the effective current capacity drops. It mounts in any position and accepts supply from either top or bottom, which simplifies wiring in tight cabinets. The test circuit requires a minimum of 195 V to function.","metaTitle":"Siemens 5SU1356-6KK40 SENTRON RCBO, 40 A, 6 kA, Type B","metaDescription":"Siemens 5SU1356-6KK40 SENTRON RCBO, 1P+N, 40 A rated at 30 °C, 6 kA per EN 60898, 10 kA per IEC 60947-2, Type B trip, 50 Hz, 230/240 V AC. Halogen-free, silicon-free, IP20. Current","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":"284 g","at 30 °C rated value":"40 A","at 40 °C rated value":"37.6 A","at 45 °C rated value":"36.4 A","at 50 °C rated value":"34.8 A","at 55 °C rated value":"32.4 A","at 60 °C rated value":"32.4 A","at 65 °C rated value":"30.8 A","at 70 °C rated value":"29.2 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":"B","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$112.80","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/51b136b7d070f2b26fe85cd825f8f8ef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=56496&mlfb=5SU1356-6KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-6KK40/alternatives.json"},"ai":{"faq":[{"question":"What is 5SU1356-6KK40's listed depth?","answer":"The overall depth is 77 mm, with an installation depth of 70 mm."},{"question":"What is 5SU1356-6KK40's listed width?","answer":"The width is 36 mm, which corresponds to 2 modular width units on a standard DIN-rail panel."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1356-6KK40","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/5SU1356-6KK40 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}}