{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9304-6KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9304-6KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU9304-6KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9304-6KK32","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON RCBO, 1P+N, B characteristic, 20 A, 30 mA Type A residual current, 10 kA breaking capacity, 230 V AC, 18 mm wide, instantaneous design.","salesMarkdown":"The SENTRON 5SU9304-6KK32 is an RCBO — a combined RCD and MCB in one 18 mm wide module. It protects a single-phase 230 V AC final circuit against overload, short-circuit (B-curve, 20 A rated), and earth leakage (30 mA, Type A). Type A means it catches pulsating DC residual currents as well as sinusoidal AC — the standard for circuits with electronic loads like washing machines, LED drivers, or small VFDs. The 1P+N construction switches the live pole and provides a solid neutral through the device — the neutral is not switched but is monitored for residual current. This is the typical European final-circuit RCBO layout. The instantaneous design trips without intentional time delay, so it's the first line of earth-fault protection on a subcircuit. At 18 mm wide (one modular unit), this RCBO fits a standard DIN-rail enclosure. That 77 mm depth includes the 600 mm pigtail — a factory-attached neutral tail that saves wiring time in the panel. The supply can enter from the top or bottom, and the mounting position is unrestricted. IP20 protection is achieved once the board is installed and conductors are connected — normal for inside a distribution cabinet. The 4 kV surge voltage resistance means it handles transient overvoltages from the mains without damage. The 1 kA surge current (8/20 µs waveform) is the impulse withstand for lightning-induced surges — typical for residential and light commercial service entrances. ## Temperature and environment Rated for -40 °C to +75 °C ambient, with max 95% humidity. That covers unheated outdoor enclosures in cold climates and hot machine cabinets near the ceiling. The 20 A rating at 30 °C and at AC confirms the thermal performance is consistent across normal operating conditions — no derating curve to chase for most installations.","metaTitle":"SENTRON 5SU9304-6KK32 RCBO, 20 A, B char, 30 mA Type A, 10 k","metaDescription":"SENTRON 5SU9304-6KK32 RCBO, 20 A rated, B-curve, 30 mA Type A residual current, 10 kA breaking capacity per EN 60898. 1P+N, 18 mm wide, active production. Quoted to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"18 mm","Height":"125 mm","Maximum":"75 °C","Minimum":"-40 °C","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"20 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","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","Residual Current Type":"A","at 30 °C rated value":"20 A","Energy Limitation Class":"3","For Testing Equipment Minimum":"115 V","Number Of Modular Width Units":"1","Position Of Power Supply Cord":"Either top or bottom","Tripping Characteristic Class":"B","Number Of Poles With Protection":"1","according to EN 60898 rated value":"10 kA","Tripping Fault Current Rated Value":"30 mA","insulation voltage (Ui) rated value":"264 V","Supply Voltage Frequency Rated Value":"50 Hz","Surge Voltage Resistance Rated Value":"4 000 V","according to IEC 60947-2 rated value":"10 kA","Surge Current Resistance At (8/20) μS":"1 kA","Influence Of The Surrounding Temperature":"Max. 95% humidity","Type Of Voltage Of The Operating Voltage":"AC","Mechanical Service Life (Operating 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=1551726&mlfb=5SU9304-6KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9304-6KK32/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 5SU9304-6KK32?","answer":"The 5SU9354-7KK16 is a close peer — same SENTRON RCBO family, same 1P+N construction, 10 kA breaking capacity, and Type A residual current. The key difference: the 5SU9354-7KK16 is a C-curve device (not B-curve) at 230/240 V, and it occupies 36 mm (2 modular units) instead of 18 mm. It will not drop into the same DIN-rail slot without a wider enclosure or a blanking plate. For a B-curve replacement, the 5SU9304-1KK32 is the same 18 mm width but a different current rating — check your load before substituting."},{"question":"Where can I buy 5SU9304-6KK32 and get current pricing?","answer":"The 5SU9304-6KK32 is sourced through independent industrial-automation distribution. Submit an RFQ — availability and current pricing are confirmed at quote time against your order quantity and delivery window."},{"question":"What compliance documentation does SENTRON provide for this RCBO?","answer":"The 5SU9304-6KK32 carries ratings per EN 60898 and IEC 60947-2, which are the harmonized standards for circuit-breaker performance and safety in Europe. The manufacturer provides a declaration of conformity covering the Low Voltage Directive and relevant harmonized standards as part of the product documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9304-6KK32","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/5SU9304-6KK32 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}}