{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1324-6FA40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1324-6FA40","canonicalUrl":"https://aoctrl.com/siemens/5SU1324-6FA40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1324-6FA40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1324-6FA40, RCBO, 2-pole, 40 A, B-curve, 30 mA Type A residual current, 10 kA breaking capacity per EN 60898.","salesMarkdown":"The Siemens 5SU1324-6FA40 is a 2-pole RCBO (residual current circuit breaker with overcurrent protection) from the SENTRON series, combining a 40 A B-curve MCB and a 30 mA Type A RCD in a single 3-module-width unit. It protects against overload, short-circuit, and earth leakage in one device — saving a DIN-rail position compared to separate MCB + RCD pairs. Rated 230/240 V AC at 50 Hz, it carries 40 A at 30 °C ambient, derating to 29.2 A at 70 °C — the full thermal curve is on record so you can size for warm enclosures without guessing. The Type A residual current element detects sinusoidal AC faults plus pulsating DC fault currents — the standard requirement for circuits feeding single-phase electronics, switched-mode power supplies, and appliances with rectifiers. A pure AC-sensitive RCD would miss those pulses. ## Installation and compliance Supply can enter from top or bottom, which simplifies panel wiring when busbars run at the top. IP20 with the distribution board installed and conductors connected — normal for an enclosed panel. Degree of pollution 2 covers normal indoor environments with occasional condensation.","metaTitle":"Siemens SENTRON 5SU1324-6FA40 RCBO, 2P, 40A, B-Curve, 30mA T","metaDescription":"Siemens 5SU1324-6FA40 SENTRON RCBO, 2-pole, 40A rated at 30°C, B-curve, 30mA Type A residual current, 10kA per EN 60898. 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":"54 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"230/240 V","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"A","Number Of Poles / Note":"2P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"430 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","Number Of Modular Width Units":"3","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"2","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","operational current / at AC / rated value":"40 A","Product Function / Neutral Conductor Switching":"Yes","Mechanical Service Life (Switching 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=45795&mlfb=5SU1324-6FA40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1324-6FA40/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 5SU1324-6FA40?","answer":"The depth is 77 mm, with an installation depth of 70 mm accounting for the DIN-rail clip and wiring space."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1324-6FA40","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/5SU1324-6FA40 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}}