{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1356-7KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1356-7KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU1356-7KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1356-7KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1356-7KK40 RCBO, 1P+N, Type C, 40 A at 30 °C, 6 kA per EN 60898, 10 kA per IEC 60947-2, instantaneous design, 2 MW, IP20.","salesMarkdown":"## RCBO for single-phase final circuits The Siemens 5SU1356-7KK40 is a SENTRON RCBO combining overcurrent protection and residual current detection in a single 2-module-wide (36 mm) package. It protects a single-phase (1P+N) circuit with a Type C tripping characteristic — the magnetic release trips between 5 and 10 times In, so it handles motor inrush and lighting ballast start-up without nuisance trips on a 40 A rated load at 30 °C ambient. The part is instantaneous design (no intentional time delay), so it clears high-impedance earth faults fast. Supply frequency is 50 Hz only; not suitable for 60 Hz networks. The 40 A rating holds only at 30 °C. At 40 °C derate to 37.6 A, at 50 °C to 34.8 A, and at 70 °C to 29.2 A. Installation depth is 70 mm plus conductor bending space; the overall depth of 77 mm includes the front projection. IP20 only, and that assumes the distribution board is closed and conductors are connected. The 2-module (36 mm) width matches standard DIN-rail cutouts. Halogen-free and silicon-free construction — important for environments where outgassing can contaminate contacts or optics.","metaTitle":"Siemens 5SU1356-7KK40 SENTRON RCBO, 40 A, 6 kA, Type C, 1P+N","metaDescription":"Siemens 5SU1356-7KK40 SENTRON RCBO, 40 A rated at 30 °C, 6 kA (EN 60898) / 10 kA (IEC 60947-2), Type C, 1P+N, 2-module width. Current 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 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":"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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/575905f9688e7c47646087010e0af5c7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=288796&mlfb=5SU1356-7KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1356-7KK40/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1356-7KK40?","answer":"6 kA per EN 60898 for domestic/commercial boards, and 10 kA per IEC 60947-2 for industrial panels."},{"question":"What is the width and depth of 5SU1356-7KK40?","answer":"Width is 36 mm (2 modular units), depth is 77 mm, installation depth is 70 mm."},{"question":"Where can I buy 5SU1356-7KK40 and how is it quoted?","answer":"This part 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/5SU1356-7KK40","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/5SU1356-7KK40 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}}