{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9106-1KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9106-1KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU9106-1KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9106-1KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 20 A, C-curve, 6 kA, 1P+N, 2-pole, 18 mm wide, IP20.","salesMarkdown":"The Siemens SENTRON 5SU9106-1KK20 is a combined RCD and MCB — an RCBO — in a single 18 mm wide module. It protects a 1P+N circuit (one protected pole, switched neutral) against overload, short-circuit, and earth leakage, all in one unit. The C tripping characteristic means it handles moderate inrush from motorized or capacitive loads without nuisance tripping; the 20 A rating at 30 °C derates to 18.8 A at 40 °C and 16.2 A at 55 °C, so check the ambient inside your enclosure before committing the BOM line. The instantaneous design (no intentional delay) clears fast on high faults, which helps with energy-limiting class 3 coordination downstream. Snaps onto standard DIN rail. At 18 mm wide (1 width unit), it occupies a single module position. Installation depth is 70 mm; the overall depth including the front is 77 mm. Supply can enter from either top or bottom, which simplifies busbar routing in a crowded distribution board. IP20 protection applies once the distribution board is installed with conductors connected — the front face is touch-protected per the product feature listing.","metaTitle":"Siemens 5SU9106-1KK20 SENTRON RCBO, 20A C-curve, 6kA, 1P+N","metaDescription":"Siemens SENTRON 5SU9106-1KK20 RCBO, 20A rated, C tripping characteristic, 6kA breaking capacity (EN 60898 / IEC 60947-2), 1P+N, 2-pole, 18mm wide. Current lifecycle stage. Sourced","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":"18 mm","Height":"125 mm","Maximum":"0.75 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"20 A","at 40 Cel":"18.8 A","at 45 Cel":"18.2 A","at 50 Cel":"17.4 A","at 55 Cel":"16.2 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 ... +45 °C","Product designation":"RCD-operated circuit breaker","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":"1","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":"5SU9","Current / at AC / rated value":"20 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"125 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"1","acc. to IEC 60947-2 / rated value":"6 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"10 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"1.2 ... 2 N·m","Product function / neutral conductor switching":"No","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=629227&mlfb=5SU9106-1KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9106-1KK20/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SU9106-1KK20?","answer":"6 kA, rated per both EN 60898 and IEC 60947-2. That is the maximum fault current it can safely interrupt at its rated voltage."},{"question":"How do I get current pricing and availability for the 5SU9106-1KK20?","answer":"Submit an RFQ through the distributor. Availability and current pricing are confirmed at quote time — the part is sourced to order through independent distribution channels."},{"question":"What conductor sizes does the 5SU9106-1KK20 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm². That range covers typical final-circuit wiring from lighting circuits up to submain feeds."},{"question":"Will the 5SU9106-1KK20 drop into a panel specified around the 5SU9156-7VK06?","answer":"Both are 18 mm wide SENTRON RCBOs on the same DIN-rail footprint, so physical fit is the same. However, the 5SU9156-7VK06 is a different variant (different rating and possibly different fault-type or pole configuration) — verify the electrical ratings match your circuit before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9106-1KK20","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/5SU9106-1KK20 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}}