{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU9346-1CR32","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU9346-1CR32","canonicalUrl":"https://aoctrl.com/siemens/5SU9346-1CR32","factsUrl":"https://aoctrl.com/api/mcp/products/5SU9346-1CR32","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU9346-1CR32, RCBO, 4-pole, 32 A, 30 mA, type AC, 6 kA, C-curve, 7 MW.","salesMarkdown":"## What this RCBO does in the panel The Siemens 5SU9346-1CR32 is a 4-pole RCBO (residual-current-operated circuit breaker with overcurrent protection) from the SENTRON family, combining a 32 A thermal-magnetic trip (C-curve) with a 30 mA type AC residual-current device in one 7-module-wide unit. The 30 mA trip threshold protects against direct-contact shock risk in standard AC circuits (sinusoidal residual currents only — not pulsed DC or smooth DC, which is the type AC limitation). ## Thermal derating — the real-world current limit At 30 °C ambient the device carries its full 32 A. At 40 °C it derates to 29.8 A; at 45 °C to 28.5 A; at 50 °C to 27.8 A; at 55 °C to 27.2 A. If the distribution board runs warm — common in a packed enclosure — the continuous load must stay below the derated value. The C-curve (magnetic trip at 5–10× In) handles motor inrush and transformer energization without nuisance tripping, but the thermal element follows the derating table. Width is 126 mm (7 modular width units). Height is 90 mm. ## Coordination and selectivity context Energy limitation class 3 limits let-through energy for downstream cable protection. The 4 kV rated surge voltage matches overvoltage category III requirements. Insulation voltage is 440 V.","metaTitle":"Siemens 5SU9346-1CR32 SENTRON RCBO, 32A, 30mA, Type AC, 6kA","metaDescription":"Siemens 5SU9346-1CR32 SENTRON RCBO, 4-pole, 32 A rated, 30 mA residual, 6 kA breaking capacity (EN 60898). Current lifecycle stage. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"126 mm","title":"5SU9346-1CR32","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","description":"RCBO, 6 kA, 3P+N, Type AC, 30 mA, C-Char, In: 32 A, Un AC: 400 V","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"4","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":"AC","Energy Limitation Class":"3","Weight / With Packaging":"530 g","according to EN 61346-2":"F","at 30 °C / rated value":"32 A","at 40 °C / rated value":"29.8 A","at 45 °C / rated value":"28.5 A","at 50 °C / rated value":"27.8 A","at 55 °C / rated value":"27.2 A","according to IEC 81346-2":"F","Number Of Modular Width Units":"7","Tripping Characteristic Class":"C","For Testing Equipment / Minimum":"125 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"4","according to EN 60898 / rated value":"6 kA","Tripping Fault Current / Rated Value":"30 mA","insulation voltage (Ui) / rated value":"440 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","according to IEC 60947-2 / rated value":"6 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","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/737b71a901255628687b84f3dce66585.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629316&mlfb=5SU9346-1CR32"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU9346-1CR32","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/5SU9346-1CR32 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}