{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1654-0KK40","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1654-0KK40","canonicalUrl":"https://aoctrl.com/siemens/5SU1654-0KK40","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KK40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1 RCBO, 40 A, 10 kA, Type B, 1P+N, 2-module width, 77 mm depth.","salesMarkdown":"## What this RCBO delivers The RCBO detects AC fault currents only (Type AC). Installation depth is 70 mm plus the 77 mm overall depth — factor that into enclosure sizing. ## Thermal derating and ambient limits Above that, the continuous current must be derated: 37.6 A at 40 °C, 36.4 A at 45 °C, 34.8 A at 50 °C, 32.4 A at 55 °C (which is the upper operating limit), and further down to 29.2 A at 70 °C. If the distribution board runs warm — say, alongside other heat-generating devices — use the 55 °C row as the realistic continuous figure. Supply can enter from top or bottom. The IP20 rating applies only when the distribution board is installed and conductors are connected — treat the device as unprotected until the enclosure is closed. Energy limiting class 3 indicates good current-limiting performance for downstream equipment protection.","metaTitle":"Siemens 5SU1654-0KK40 RCBO, 40 A, 10 kA, Type B, 1P+N","metaDescription":"Siemens SENTRON 5SU1654-0KK40 RCBO, 40 A rated, 10 kA breaking capacity, Type B characteristic, 1P+N, 2-module width. Current lifecycle. Available to order; RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","Height":"90 mm","Maximum":"15.6 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"40 A","at 40 Cel":"37.6 A","at 45 Cel":"36.4 A","at 50 Cel":"34.8 A","at 55 Cel":"32.4 A","at 60 Cel":"32.4 A","at 65 Cel":"30.8 A","at 70 Cel":"29.2 A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"RCBO","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","Energy limiting class":"3","Number of width units":"2","Type of fault current":"AC","Number of poles / Note":"1P+N","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU1","Current / at AC / rated value":"40 A","Tripping characteristic class":"B","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"100 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"15 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"300 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=366024&mlfb=5SU1654-0KK40","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1654-0KK40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1654-0KK40 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — figures are confirmed at quote time."},{"question":"What is the depth of 5SU1654-0KK40?","answer":"Overall depth is 77 mm; installation depth (behind the panel face) is 70 mm."},{"question":"What conductor sizes does 5SU1654-0KK40 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"Will 5SU1654-0KK40 drop into a panel specified around 5SL6563-7BB without rewiring?","answer":"Both are 2-module (36 mm) DIN-rail RCBOs, so the footprint matches. However, the 5SL6563-7BB is a different series with potentially different terminal layout and tripping characteristic — verify conductor routing and load compatibility before substitution. The 5SU1654-0KK40 is a Type B, 40 A, 10 kA device; confirm the original spec matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1654-0KK40","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/5SU1654-0KK40 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}}