{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1444-2RC63","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1444-2RC63","canonicalUrl":"https://aoctrl.com/siemens/5SU1444-2RC63","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1444-2RC63","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 63 A, 4-pole, 7 MW, D characteristic, AC-type, 100 mA, 10 kA (EN 60898), 15 kA (IEC 60947-2), 70 mm depth, IP20.","salesMarkdown":"## 63 A RCBO with D-curve and AC-type residual current — what it means on the panel The Siemens 5SU1444-2RC63 is a 4-pole RCBO (residual current breaker with overcurrent protection) from the SENTRON family, rated 63 A at 415 V AC, 50 Hz. It combines a D-curve MCB with an AC-type 100 mA residual current device in one 7-module-wide unit. ## Mounting and integration — 7 MW footprint, any orientation Occupies 7 modular width units (126 mm) on a DIN rail; depth is 70 mm. Mounting position is unrestricted — install upright, sideways, or inverted inside the distribution board. Supply can enter from top or bottom. The IP20 rating applies with the distribution board closed and conductors connected — standard for enclosed panel installation, not for exposed mounting. The 70 mm installation depth matches standard SENTRON RCBO dimensions; check your enclosure's door clearance if using a shallow box. Four poles protected (all poles switched and monitored for residual current). The 4-pole design covers three-phase-plus-neutral circuits; for single-phase or three-phase without neutral, a 1P+N or 3P variant would be the correct choice.","metaTitle":"Siemens 5SU1444-2RC63 SENTRON RCBO 63A 4P D-curve 100mA AC-t","metaDescription":"Siemens 5SU1444-2RC63 SENTRON RCBO, 63 A, 4-pole, D characteristic, AC-type 30mA residual current. 10 kA per EN 60898, 15 kA per IEC 60947-2. Current lifecycle. Quoted to order aga","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","title":"5SU1444-2RC63","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"RCBO 63 A 4-pole 8 modules D characteristic Type AC 100mA","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":"D","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8ea0637bdb66b51dc2aec28d0bd33976.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=519205&mlfb=5SU1444-2RC63"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SU1444-2RC63?","answer":"Submit an RFQ through the storefront. Availability and current pricing are confirmed at quote time through independent distribution channels."},{"question":"What is 5SU1444-2RC63's listed depth?","answer":"70 mm installation depth, matching the standard SENTRON RCBO footprint."},{"question":"Will 5SU1444-2RC63 drop into a panel specified around 5SU9354-7KK16?","answer":"No — the 5SU9354-7KK16 is a 1P+N 2-module RCD-operated circuit breaker, while the 5SU1444-2RC63 is a 4-pole 7-module RCBO. The width (126 mm vs 36 mm), pole count, and wiring differ completely; the panel would need rewiring and a larger DIN-rail allocation."},{"question":"What compliance documentation is available for 5SU1444-2RC63?","answer":"The part carries ratings per EN 60898 and IEC 60947-2, overvoltage category III, pollution degree 2, and IP20 protection. Standard SENTRON documentation includes CE declaration of conformity; specific RoHS/REACH/UL status should be verified from the manufacturer's current compliance documents."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1444-2RC63","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/5SU1444-2RC63 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}