{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9306-1KK45","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9306-1KK45","canonicalUrl":"https://aoctrl.com/siemens/5SU9306-1KK45","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9306-1KK45","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9306-1KK45, RCD-operated circuit breaker, 45 A AC rated, 6 kA breaking capacity (EN 60898 / IEC 60947-2), tripping characteristic C, 1P+N, 18 mm (1 width unit).","salesMarkdown":"The Siemens 5SU9306-1KK45 is a SENTRON RCD-operated circuit breaker — an RCBO that combines overcurrent protection and residual current detection in a single 18 mm wide module. The 1P+N configuration protects one phase conductor while switching the neutral, and the unit occupies a single width unit on the DIN rail. The 45 A rating is the current at 30 °C; at 40 °C ambient it derates to 42.3 A, at 45 °C to 40.95 A, and at 55 °C to 36.45 A. The supply can enter from either the top or bottom — no mandatory orientation. Touch protection is built in.","metaTitle":"Siemens 5SU9306-1KK45 SENTRON RCBO, 45 A, 6 kA, Type C, 1P+N","metaDescription":"Siemens 5SU9306-1KK45 SENTRON RCD-operated circuit breaker, 45 A rated current, 6 kA breaking capacity, tripping characteristic C, 1P+N, 18 mm wide. Current lifecycle stage. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"45 A","at 40 Cel":"42.3 A","at 45 Cel":"40.95 A","at 50 Cel":"39.15 A","at 55 Cel":"36.45 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":"45 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"6 kA","For Testing Equipment / Minimum":"115 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":"30 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":"https://cdn.aoctrl.com/afd84d4cd92063d3fe7003ce39deab53.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629283&mlfb=5SU9306-1KK45","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9306-1KK45/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU9306-1KK45 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SU9306-1KK45?","answer":"The overall depth is 77 mm; the installation depth behind the panel face is 70 mm."},{"question":"What conductor sizes does 5SU9306-1KK45 accept?","answer":"It accepts solid or stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"Will 5SU9306-1KK45 drop into a panel specified around 5SY3132-6 without rewiring?","answer":"The 5SU9306-1KK45 is an RCBO (overcurrent + residual current), while the 5SY3132-6 is a standard MCB without RCD protection. They share the same 18 mm DIN-rail footprint and similar conductor ranges, but the RCBO requires a neutral connection and has different internal wiring — it is not a direct form-fit-function swap without circuit redesign."},{"question":"What compliance documentation does Siemens provide for 5SU9306-1KK45?","answer":"The part is halogen-free and silicon-free, and carries the SENTRON brand under the 5SU9 design series. It is rated per EN 60898 and IEC 60947-2 for breaking capacity, and classified per DIN EN 61346-2 and DIN EN 81346-2 with letter F."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9306-1KK45","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/5SU9306-1KK45 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}}