{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1644-1RC63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1644-1RC63","canonicalUrl":"https://aoctrl.com/siemens/5SU1644-1RC63","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1644-1RC63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1644-1RC63 RCBO, 63 A, 4-pole, 7 MW, C-curve, Type AC 300 mA, 10/15 kA, IP20.","salesMarkdown":"It combines overcurrent and earth leakage protection in one 7-module-wide unit, saving a DIN rail position compared to separate MCB+RCD assemblies. Rated breaking capacity is 10 kA per EN 60898 and 15 kA per IEC 60947-2 at 415 V AC, which covers most commercial and light industrial panelboard applications where the prospective short-circuit current stays under those thresholds. ## Panel fit and installation Width is 126 mm (7 module units), depth 70 mm, height 90 mm. Mounts on DIN rail in any orientation. IP20 rating applies when installed in a distribution board with conductors connected — standard for enclosed panelboards, not for open or wet locations. Supply can enter from top or bottom. Humidity tolerance up to 95%.","metaTitle":"Siemens 5SU1644-1RC63 SENTRON RCBO, 63 A, 4-pole, C-curve, 3","metaDescription":"Siemens SENTRON 5SU1644-1RC63 RCBO, 63 A, 4-pole, C-curve, 300 mA AC type. 10 kA (EN 60898) / 15 kA (IEC 60947-2). IP20. Active production. Available 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/bed74928c9539d6c50f1eb1e06da07d1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=327768&mlfb=5SU1644-1RC63","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1644-1RC63/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1644-1RC63 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ. Submit a request through the storefront; availability and current pricing are confirmed at quote time."},{"question":"Will 5SU1644-1RC63 drop into a panel that was specified around 5SU9354-7KK16 without rewiring?","answer":"No. The 5SU9354-7KK16 is a 1P+N RCD-operated circuit breaker (instantaneous type, 2 MW wide) while the 5SU1644-1RC63 is a 4-pole RCBO with overcurrent protection (7 MW wide). They serve different circuit configurations and panel space requirements — the 5SU1644-1RC63 will not fit a panel designed for the narrower 1P+N unit without significant rewiring and busbar changes."},{"question":"What compliance documentation does this brand provide for 5SU1644-1RC63?","answer":"As a Siemens SENTRON product, it carries IEC/EN 60898-1 and IEC 60947-2 ratings. RoHS and REACH compliance documentation is typically available from the manufacturer upon request. The unit is rated IP20 when installed in a distribution board with conductors connected."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1644-1RC63","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/5SU1644-1RC63 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}}