{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1344-6KK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1344-6KK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1344-6KK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1344-6KK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1344-6KK82, 4-pole RCBO, 125 A rated current, 30 mA residual current, Type A, tripping characteristic B, 10 kA breaking capacity per EN 60898 and IEC 60947-2.","salesMarkdown":"## What this RCBO does and where it fits The Siemens 5SU1344-6KK82 is a 4-pole residual current circuit breaker with overcurrent protection (RCBO) from the SENTRON family, rated 125 A at 30 °C and 115.62 A at 40 °C — the 40 °C figure is the one that governs a typical panel ambient, so that is the number to size against for continuous load. Supply can enter from either top or bottom, which simplifies panel wiring when busbar orientation is fixed. Mounting position is any, so vertical or horizontal panel layouts both work. ## Thermal derating and environmental range The rated current derates from 125 A at 30 °C down to 96.25 A at 60 °C, following a linear curve. For a panel running at 45 °C, the usable rating is 111.25 A; at 50 °C it is 106.25 A. This matters when the RCBO is grouped with other heat-generating devices in a confined enclosure.","metaTitle":"Siemens 5SU1344-6KK82 SENTRON RCBO, 4P, 125 A, 30 mA, Type A","metaDescription":"Siemens 5SU1344-6KK82 SENTRON RCBO, 4-pole, 125 A rated, 30 mA residual current, Type A, characteristic B, 10 kA breaking capacity. Current lifecycle stage. Quoted to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"198 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Operating Frequency":"50 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"125 A","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":"4P","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"2 042 g","at 30 °C / rated value":"125 A","at 40 °C / rated value":"115.62 A","at 45 °C / rated value":"111.25 A","at 50 °C / rated value":"106.25 A","at 55 °C / rated value":"101.25 A","at 60 °C / rated value":"96.25 A","Number Of Modular Width Units":"11","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":"4","acc. to IEC 60947-2 / rated value":"10 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","Product Function / Neutral Conductor Switching":"Yes","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e2e6ddacb60a42cb10c149ae3a30b8e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=319596&mlfb=5SU1344-6KK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1344-6KK82/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1344-6KK82 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Submit a request for quote; availability and current pricing are confirmed at that time."},{"question":"What is the 5SU1344-6KK82's depth and width for panel layout?","answer":"Depth is 77 mm and width is 198 mm, occupying 11 modular width units on a DIN rail."},{"question":"What compliance documentation does this brand provide for 5SU1344-6KK82?","answer":"The unit is halogen-free and silicon-free, and carries ratings per EN 60898 and IEC 60947-2. Standard Siemens SENTRON documentation includes RoHS and REACH declarations; specific certificates are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1344-6KK82","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/5SU1344-6KK82 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}}