{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9356-7KP40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9356-7KP40","canonicalUrl":"https://aoctrl.com/siemens/5SU9356-7KP40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KP40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9356-7KP40, RCBO, 1P+N, 40 A, 30 mA, Type A, 6 kA per EN 60898, 2 MW, IP20.","salesMarkdown":"The 5SU9356-7KP40: Rated 40 A at 30 °C, but the current must be derated as ambient temperature rises: 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, and 32.4 A at 55 °C. For a panel running at 50 °C, you effectively have a 34.8 A device — plan your load accordingly. The breaking capacity is 6 kA per EN 60898 (the standard for MCBs/RCBOs in household and similar installations) and 10 kA per IEC 60947-2 (the industrial standard for low-voltage switchgear), so it handles fault currents up to 10 kA in an industrial panel. The C-curve trips at 5–10× In, suitable for motor and lighting loads with moderate inrush. Rated IP20 once installed in a distribution board with conductors connected — it is not a stand-alone outdoor device.","metaTitle":"Siemens 5SU9356-7KP40 SENTRON RCBO, 40 A, 30 mA, Type A, 6 k","metaDescription":"Siemens SENTRON 5SU9356-7KP40 RCBO, 40 A rated, 30 mA residual, Type A, 6 kA breaking capacity per EN 60898. Active production. Quoted to order.","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":"50/60 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","Weight With Packaging":"300 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","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":"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","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=629405&mlfb=5SU9356-7KP40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9356-7KP40/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU9356-7KP40?","answer":"6 kA per EN 60898 and 10 kA per IEC 60947-2, so it covers both residential and industrial fault-level requirements."},{"question":"How do I get pricing and availability for 5SU9356-7KP40?","answer":"Submit an RFQ — the part is sourced to order through independent distribution, and current pricing and availability are confirmed at quote time."},{"question":"What is the temperature derating for 5SU9356-7KP40?","answer":"Rated 40 A at 30 °C, derated to 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, and 32.4 A at 55 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9356-7KP40","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/5SU9356-7KP40 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}}