{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1324-7FA40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1324-7FA40","canonicalUrl":"https://aoctrl.com/siemens/5SU1324-7FA40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1324-7FA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1324-7FA40 RCBO, 2-pole instantaneous, C-curve, 40 A at 30 °C, 10 kA (EN 60898) / 15 kA (IEC 60947-2), 230/240 V AC, 50 Hz, IP20, halogen-free.","salesMarkdown":"## Rated parameters and breaking capacity Rated at 40 A at 30 °C with a rated voltage of 230/240 V AC at 50 Hz, it provides overcurrent and earth-fault protection in a single module. The breaking capacity is 10 kA per EN 60898 and 15 kA per IEC 60947-2 — the higher IEC figure matters when the device is installed in an industrial distribution board where fault levels may exceed the domestic 10 kA threshold. Supply can enter from either top or bottom, and the mounting position is unrestricted. IP20 applies only when the distribution board is installed with conductors connected. ## Thermal derating and environmental range Rated current is 40 A at 30 °C, derating to 29.2 A at 70 °C. The full derating curve is documented: 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, and 30.8 A at 65 °C. For a panel that sees elevated internal temperatures — typical in a crowded enclosure or near a heat source — use the 40 °C or 50 °C column to size the circuit, not the 30 °C headline figure. Insulation voltage (Ui) is 264 V, surge voltage resistance is 4 000 V. The minimum test voltage is 195 V.","metaTitle":"Siemens SENTRON 5SU1324-7FA40 RCBO, 2P, C-curve, 40 A, 10 kA","metaDescription":"Siemens SENTRON 5SU1324-7FA40 RCBO: 2-pole, C-curve, 40 A rated at 30 °C, 10 kA breaking capacity per EN 60898. Current lifecycle stage. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","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":"420 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":"3","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"2","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":"15 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/f8a3f804604e34cc21a3fa836405929c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=499292&mlfb=5SU1324-7FA40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1324-7FA40/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 5SU1324-7FA40 and how is it quoted for volume purchases?","answer":"The part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quotation."},{"question":"What is the breaking capacity of 5SU1324-7FA40?","answer":"10 kA per EN 60898 and 15 kA per IEC 60947-2. The higher IEC rating applies when the device is used in industrial distribution boards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1324-7FA40","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/5SU1324-7FA40 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}}