{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9304-7KX32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9304-7KX32","canonicalUrl":"https://aoctrl.com/siemens/5SU9304-7KX32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KX32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9304-7KX32, RCD-operated circuit breaker (RCBO), 32 A rated, 10 kA breaking capacity, Type A, C-curve, 1P+N, 18 mm wide.","salesMarkdown":"## RCD-operated circuit breaker — 32 A, Type A, C-curve The Siemens 5SU9304-7KX32 is a SENTRON RCBO — an RCD-operated circuit breaker combining overcurrent and residual current protection in a single 18 mm wide module. The Type A fault-current detection catches pulsating DC residual currents from rectified loads (VFDs, switched-mode supplies) that a plain AC type would miss. Breaking capacity is 10 kA per EN 60898 and IEC 60947-2, so it safely interrupts fault currents up to that level in a 230/400 V distribution board. ## Thermal derating and installation Rated current holds at 32 A up to 30 °C ambient; above that it derates stepwise — 30.4 A at 40 °C, 29.12 A at 45 °C, 28.16 A at 50 °C, 27.52 A at 55 °C. The operating ambient range is -25 to +45 °C, storage -40 to +75 °C. Mounting position is any, installation depth 70 mm, overall depth 77 mm. Protection class is IP20 with the distribution board installed; with connected conductors it achieves IP40.","metaTitle":"Siemens 5SU9304-7KX32 SENTRON RCBO, 32 A, 10 kA, Type A, C-c","metaDescription":"Siemens 5SU9304-7KX32 SENTRON RCBO, 32 A rated, 10 kA breaking capacity (EN 60898 / IEC 60947-2), Type A, C-curve, 1P+N, 18 mm wide. Current lifecycle. Sourced to order against RFQ","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":"5.21 W","Stranded":"0.75 ... 35 mm²","at 30 Cel":"32 A","at 40 Cel":"30.4 A","at 45 Cel":"29.12 A","at 50 Cel":"28.16 A","at 55 Cel":"27.52 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, IP40 is achieved","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":"32 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"93.5 V","Position / of power supply cord":"from below","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":"3 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=558613&mlfb=5SU9304-7KX32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KX32/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SU9304-7KX32?","answer":"10 kA per EN 60898 and IEC 60947-2, which covers most residential and light commercial distribution board fault levels."},{"question":"What conductor sizes does 5SU9304-7KX32 accept?","answer":"Solid or stranded conductors from 0.75 mm² up to 35 mm², covering final circuit wiring from lighting to heavy appliance feeds."},{"question":"Where can I buy 5SU9304-7KX32?","answer":"Sourced and quoted to order against an RFQ through independent distribution; 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/5SU9304-7KX32","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/5SU9304-7KX32 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}}