{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9306-0KK20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9306-0KK20","canonicalUrl":"https://aoctrl.com/siemens/5SU9306-0KK20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9306-0KK20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9306-0KK20, 2-pole RCBO, 20 A, 30 mA, Type B, 6 kA, 1 MW wide, halogen-free.","salesMarkdown":"The Siemens 5SU9306-0KK20 is a 2-pole RCD-operated circuit breaker (RCBO) from the SENTRON family — a single module that combines overcurrent protection and residual current detection in one 18 mm-wide DIN-rail package. Touch protection is built into the design, and the IP20 rating applies once installed with conductors connected inside a distribution board. ## Temperature derating — what the panel builder needs to know At 40 °C it derates to 18.8 A, at 45 °C to 18.2 A, at 50 °C to 17.4 A, and at 55 °C to 16.2 A. If you're packing this into a warm enclosure alongside other heat sources, use the 40 °C or 50 °C column for your load calculation — don't just read the 30 °C number off the front. The unit is rated for ambient down to -40 °C and up to 75 °C storage, so cold-storage or outdoor panels are fine.","metaTitle":"Siemens SENTRON 5SU9306-0KK20 RCBO, 20 A, 30 mA, Type B, 6 k","metaDescription":"Siemens 5SU9306-0KK20 SENTRON RCBO, 2-pole, 20 A, 30 mA residual current, Type B trip curve, 6 kA breaking capacity. Current production. Sourced to order. Request quote.","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","acc. to IEC 81346-2":"F","at AC / rated value":"20 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":"AC","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"260 g","at 30 °C / rated value":"20 A","at 40 °C / rated value":"18.8 A","at 45 °C / rated value":"18.2 A","at 50 °C / rated value":"17.4 A","at 55 °C / rated value":"16.2 A","Number Of Modular Width Units":"1","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"6 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":"6 kA","Product Feature / Touch Protection":"Yes","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","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=629272&mlfb=5SU9306-0KK20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU9306-0KK20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU9306-0KK20 and get a price?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ — availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 5SU9306-0KK20?","answer":"The overall depth is 77 mm, with an installation depth of 70 mm — fits standard 80 mm-deep enclosures."},{"question":"What compliance documentation does this brand provide for 5SU9306-0KK20?","answer":"The part is halogen-free and silicon-free, designed to EN 60898 and IEC 60947-2, with an overvoltage category III and pollution degree 2 rating. Standard Siemens CE and UKCA declarations apply."},{"question":"Will 5SU9306-0KK20 drop into a panel specified around 5SL3116-6MB?","answer":"No — the 5SL3116-6MB is a 1-pole MCB without residual current protection, while the 5SU9306-0KK20 is a 2-pole RCBO combining overcurrent and RCD protection. They are not drop-in interchangeable; the panel wiring and neutral busbar differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9306-0KK20","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/5SU9306-0KK20 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}}