{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9304-0KK32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9304-0KK32","canonicalUrl":"https://aoctrl.com/siemens/5SU9304-0KK32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9304-0KK32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 1P+N, Type AC, 30 mA, B-curve, In: 32 A, Un AC: 230 V, 10 kA, pigtail 600 mm, solid N.","salesMarkdown":"## What this RCBO does on the rail The neutral is switched and solid, with a 600 mm factory-attached pigtail for the N connection. It occupies one modular-width unit on the DIN rail, so it fits standard distribution boards without crowding the gland plate. The B-curve means magnetic trip occurs at 3–5× In (96–160 A for this 32 A unit), which suits resistive and general-purpose loads — lighting, small heaters, socket circuits — where inrush is modest. The 30 mA residual sensitivity catches direct-contact leakage and protects against fire risk from tracking faults. Snap-on DIN rail mount, any orientation. The 18 mm width and 77 mm depth leave clearance in standard 125 mm-tall enclosures; the 70 mm installation depth accounts for the pigtail bend radius behind the rail. IP20 rating applies once the distribution board is installed and conductors are connected; the device itself is not rated for washdown environments. The 4 kV surge voltage resistance and 1 kA surge current (8/20 µs) give it reasonable immunity to lightning-induced transients on the supply side. Energy limitation class 3 indicates it limits let-through energy to a level that protects downstream wiring in a fault condition.","metaTitle":"Siemens 5SU9304-0KK32 SENTRON RCBO 32A 30mA Type AC B-curve","metaDescription":"Siemens SENTRON 5SU9304-0KK32 RCBO, 1P+N, 32A, 30mA Type AC, B-curve, 10kA breaking capacity per EN 60898. Active production, quoted to order. Available from independent distributi","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","Design Of Pole":"1P+N","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","at AC rated value":"230/240 V","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","Weight With Packaging":"260 g","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","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","for rated value of the current at AC in hot operating state per pole":"0.75 W"}},"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=629253&mlfb=5SU9304-0KK32","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9304-0KK32/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SU9304-0KK32?","answer":"The 5SU9304-0KK32 has a 10 kA breaking capacity rated per both EN 60898 and IEC 60947-2, making it suitable for residential and light commercial distribution boards with sufficient fault current headroom."},{"question":"Will the 5SU9304-0KK32 drop into a panel specified around 5SY6040-6?","answer":"No — the 5SY6040-6 is a miniature circuit breaker (MCB) without residual-current protection, while the 5SU9304-0KK32 is an RCBO combining overcurrent and 30 mA earth leakage protection. They share the same 1 MW DIN footprint, but the RCBO requires the neutral pigtail connection and occupies the same single-module width. A panel designed for an MCB can physically accept the RCBO, but the circuit design must account for the additional residual-current function."},{"question":"Where can I buy the 5SU9304-0KK32?","answer":"The 5SU9304-0KK32 is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time."},{"question":"What compliance documentation is available for the 5SU9304-0KK32?","answer":"The SENTRON series RCBOs carry CE marking per the Low Voltage Directive and are designed to meet EN 60898 and IEC 60947-2. Halogen-free and silicon-free construction is declared. Specific RoHS/REACH declarations are available from Siemens on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9304-0KK32","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/5SU9304-0KK32 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}}