{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9304-7KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9304-7KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU9304-7KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KK32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9304-7KK32, RCBO, 2-pole, 32 A, 30 mA, Type A, C-curve, 10 kA, 1 MW, IP20.","salesMarkdown":"The Siemens 5SU9304-7KK32 is a SENTRON RCBO — a residual-current-operated circuit breaker that combines overcurrent protection and earth-leakage detection in a single 1-module-width (18 mm) package. It is rated 32 A at 30 °C with a 30 mA residual-current trip threshold, Type A (pulsating DC and sinusoidal AC), C-curve magnetic trip characteristic, and a 10 kA breaking capacity per EN 60898. This is the variant with two poles switched but only one pole protected against overcurrent — the neutral pole is switched but not monitored for overload. The 30 mA trip threshold catches leakage currents that could be hazardous to personnel, while the Type A detection handles the rectified waveforms common in modern electronics. ## Temperature derating — the real-world current rating At 40 °C it derates to 30.08 A; at 45 °C to 29.12 A; at 50 °C to 27.84 A; and at 55 °C to 25.92 A. Plan the load at the derated figure for the expected cabinet temperature. Snap-on DIN rail mount, 1 module width (18 mm), 77 mm depth, 125 mm height. Installation depth is 70 mm. Supply can enter from top or bottom. Touch protection is built in. Rated IP20 once installed in a distribution board with conductors connected — this is a panel-interior device, not for wet or dusty locations. Pollution degree 2, overvoltage category III. Halogen-free and silicon-free construction.","metaTitle":"Siemens 5SU9304-7KK32 SENTRON RCBO, 32 A, 30 mA, Type A, C-c","metaDescription":"Siemens 5SU9304-7KK32 SENTRON RCBO, 2-pole, 32 A rated, 30 mA trip, Type A, C-curve, 10 kA breaking capacity. Current production. Quoted 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","Width":"18 mm","Height":"125 mm","Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50/60 Hz","Product Designation":"RCD-operated circuit breaker","at AC / rated value":"32 A","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","Energy Limitation Class":"3","Weight / With Packaging":"260 g","according to EN 61346-2":"F","at 30 °C / rated value":"32 A","at 40 °C / rated value":"30.08 A","at 45 °C / rated value":"29.12 A","at 50 °C / rated value":"27.84 A","at 55 °C / rated value":"25.92 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"1","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"115 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"1","Product Feature / Touch Protection":"Yes","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","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Type Of Voltage / Of The Operating Voltage":"AC","Product Component / 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=629268&mlfb=5SU9304-7KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9304-7KK32/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU9304-7KK32 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ against this order code; availability and current pricing are confirmed at quote time."},{"question":"Will 5SU9304-7KK32 drop into a panel that was specified around 5SU9304-1KK32 without rewiring?","answer":"Both are 1-module-width (18 mm) RCBOs with the same DIN-rail footprint, so the mechanical fit is identical. The difference is electrical: the -7KK32 is a 32 A / 30 mA / Type A / C-curve, while the -1KK32 is a lower-current variant. Check the load current and trip coordination before swapping — the panel wiring itself does not need rework, but the protective device rating must match the circuit."},{"question":"What is 5SU9304-7KK32's listed depth (77 mm) on this component line?","answer":"The overall depth is 77 mm, with an installation depth of 70 mm. This is a standard depth for SENTRON 1-MW RCBOs and fits most distribution boards without conflict."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9304-7KK32","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/5SU9304-7KK32 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}}