{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9306-1KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9306-1KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU9306-1KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9306-1KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 25 A rated AC, C tripping characteristic, 6 kA breaking capacity, 1P+N, 18 mm width, IP20.","salesMarkdown":"The Siemens 5SU9306-1KK25 is a 1P+N RCD-operated circuit breaker (RCBO) from the SENTRON 5SU9 series, combining overcurrent protection and residual current detection in a single 18 mm wide module. The 25 A rating at 30 °C is the headline number, but the real-world current capacity drops as ambient temperature rises: 23.5 A at 40 °C, 22.75 A at 45 °C, 21.75 A at 50 °C, and 20.25 A at 55 °C. ## Mounting and wiring — fits standard DIN rail, 1 width unit The installation depth is 70 mm, with an overall depth of 77 mm including the front.","metaTitle":"Siemens 5SU9306-1KK25 SENTRON RCBO, 25A C-Curve, 6kA, 1P+N","metaDescription":"Siemens 5SU9306-1KK25 SENTRON RCBO, 25A rated at 30°C, C-curve, 6kA breaking capacity per EN 60898, 1P+N, 18mm wide. Current production, available to order.","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":"25 A","at 40 Cel":"23.5 A","at 45 Cel":"22.75 A","at 50 Cel":"21.75 A","at 55 Cel":"20.25 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":"25 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=629280&mlfb=5SU9306-1KK25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9306-1KK25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU9306-1KK25?","answer":"It has a 6 kA rated breaking capacity per both EN 60898 and IEC 60947-2, which is standard for residential and light commercial distribution boards."},{"question":"What wire sizes does 5SU9306-1KK25 accept?","answer":"It accepts solid or stranded conductors from 0.75 mm² up to 35 mm², covering most branch circuit wiring sizes."},{"question":"Where can I buy 5SU9306-1KK25 and how is it quoted?","answer":"This RCBO is sourced to order against an RFQ through independent distribution. Submit a request for quote to confirm availability and current pricing for your volume."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9306-1KK25","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/5SU9306-1KK25 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}}