{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9304-7KK25","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9304-7KK25","canonicalUrl":"https://aoctrl.com/siemens/5SU9304-7KK25","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KK25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9 series, RCD-operated circuit breaker (RCBO), 25 A rated AC, C tripping characteristic, 10 kA breaking capacity, Type A, 1P+N, 18 mm width, 77 mm depth.","salesMarkdown":"The Siemens 5SU9304-7KK25 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. ## Thermal derating and conductor sizing The 25 A rating holds at 30 °C ambient; at 40 °C it derates to 23.5 A, at 45 °C to 22.75 A, at 50 °C to 21.75 A, and at 55 °C to 20.25 A. If the panel runs warm — say near a transformer or drive — size the load accordingly. Power dissipation is a modest 0.75 W at rated load, so heat buildup in a crowded enclosure is minimal. Mounting position is unrestricted — horizontal, vertical, upside-down, it doesn't care. Supply can feed from top or bottom. IP20 with the distribution board installed and conductors connected; touch protection is built in.","metaTitle":"Siemens 5SU9304-7KK25 SENTRON RCBO, 25A C-curve, 10kA, 1P+N","metaDescription":"Siemens 5SU9304-7KK25 SENTRON RCBO, 25 A rated, C tripping characteristic, 10 kA breaking capacity per EN 60898 / IEC 60947-2, Type A, 1P+N, 18 mm wide. Current production. Quoted","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 ... +55 °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":"A","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":"10 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":"10 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=629267&mlfb=5SU9304-7KK25","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KK25/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU9304-7KK25?","answer":"10 kA per EN 60898 and also 10 kA per IEC 60947-2, covering both the MCB and RCBO standards."},{"question":"What conductor sizes does 5SU9304-7KK25 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm²."},{"question":"Where can I buy 5SU9304-7KK25 and how is it quoted?","answer":"Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9304-7KK25","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/5SU9304-7KK25 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}}