{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1344-1RC63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1344-1RC63","canonicalUrl":"https://aoctrl.com/siemens/5SU1344-1RC63","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1344-1RC63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 63 A, 4-pole, 7 modular width units, C tripping characteristic, Type AC 30 mA residual current, 10 kA (EN 60898) / 15 kA (IEC 60947-2).","salesMarkdown":"## What this RCBO covers It combines overcurrent and earth-fault protection in a single 7-module-wide unit, saving a DIN-rail position compared to separate MCB + RCCD pairs. Breaking capacity is 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 415 V AC — the higher IEC figure gives coordination headroom for industrial panel designs where the prospective fault current exceeds the residential standard. No official successor has been published — this remains the current catalog number for a 63 A, 4-pole, Type AC 30 mA RCBO in the SENTRON line. IP20 protection applies when installed in a distribution board with connected conductors — the RCBO itself is not rated for exposed or washdown locations. Energy limitation class 3 means the RCBO limits let-through energy during a fault, aiding downstream selectivity with standard MCBs.","metaTitle":"Siemens 5SU1344-1RC63 SENTRON RCBO, 63 A, 4P, C-curve, 30 mA","metaDescription":"Siemens 5SU1344-1RC63 SENTRON RCBO, 63 A, 4-pole, Type AC 30 mA, C-curve. 10 kA per EN 60898, 15 kA per IEC 60947-2. 7 MW, IP20. Current production — sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"126 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"415V","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","Energy Limitation Class":"3","Number Of Modular Width Units":"7","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"C","Number Of Poles With Protection":"4","according to EN 60898 rated value":"10 kA","insulation voltage (Ui) rated value":"440 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 V","according to IEC 60947-2 rated value":"15 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC"}},"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=306510&mlfb=5SU1344-1RC63","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1344-1RC63/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU1344-1RC63?","answer":"10 kA per EN 60898 and 15 kA per IEC 60947-2 at 415 V AC. The higher IEC figure applies when the device is certified to the industrial standard."},{"question":"How many DIN modules wide is the 5SU1344-1RC63?","answer":"7 modular width units, which is 126 mm on a standard DIN rail."},{"question":"What is the residual current rating and type?","answer":"Type AC, 30 mA — suitable for sinusoidal AC earth-leakage detection in general-purpose circuits."},{"question":"Where can I buy the 5SU1344-1RC63?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will the 5SU1344-1RC63 fit in a panel designed for a 5SL4363-7?","answer":"No — the 5SL4363-7 is a 3-pole MCB, 3 modules wide (54 mm). The 5SU1344-1RC63 is a 4-pole RCBO, 7 modules wide (126 mm). Different footprint and function; rewiring and additional DIN space would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1344-1RC63","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/5SU1344-1RC63 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}}