{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9927-0RC00","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9927-0RC00","canonicalUrl":"https://aoctrl.com/siemens/3VA9927-0RC00","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9927-0RC00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON, RCD-to-ETU connection cable, 3VA9927-0RC00, removable/pluggable, 124 mm depth, 90 mm width, 41 mm height.","salesMarkdown":"It handles data exchange between the RCD and the ETU, so the breaker's trip unit sees the residual current signal and can coordinate ground-fault protection with overload and short-circuit curves. This is a spare part, not a field-assembled harness — one cable serves one breaker directly. ## What the dimensions mean for panel fit At 124 mm deep, 90 mm wide, and 41 mm tall, this cable's plug body fits into the accessory slot on the side of a 3VA2 breaker. The 90 mm width matches the standard 3VA frame width, so it does not overhang the breaker envelope — no extra DIN-rail space needed beyond what the breaker already occupies. The 41 mm height keeps it clear of adjacent pole barriers and arc chambers inside the panel. ## What it does — and what it does not do This cable is purpose-built for the RCD820 and 3VA2 combination. It enables communication with residual current equipment and data exchange with the electronic tripping unit. It does not communicate with a motor drive — that is a separate function handled by other SENTRON communication modules. The connection is removable/pluggable, so it can be disconnected for breaker maintenance or replacement without cutting wires.","metaTitle":"Siemens 3VA9927-0RC00 RCD-to-ETU Connection Cable, 124 mm","metaDescription":"Siemens SENTRON 3VA9927-0RC00 connection cable between RCD820 and 3VA2 electronic trip unit. Active production. Depth 124 mm. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"124 mm","Width":"90 mm","title":"3VA9927-0RC00","Height":"41 mm","Accessories":"communication and tripping function","description":"connection cable between residual current device RCD820 and electronic trip unit (ETU) circuit breaker 3VA2 spare part","Product version":"accessories for RCD820 3VA","lifecycle_stage":"current","Product Brand Name":"SENTRON","Product Designation":"RCD-to-ETU connection cable","Suitability For Operation":"3VA2 and RCD820","Type Of Electrical Connection":"removable/pluggable","Communication With Motor Drive":"No","Communication With Residual Current Equipment":"Yes","Data Exchange With The Electronic Tripping Unit":"Yes","Number Of Circuit Breakers / Directly Connectable":"1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/522b960fe52b699fdaf73fc4d46fd8c8.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1447805&mlfb=3VA9927-0RC00"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3VA9927-0RC00?","answer":"The 3VA9927-0RC00 is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time."},{"question":"What is the 3VA9927-0RC00 used for?","answer":"It is a connection cable between a Siemens RCD820 residual current device and the electronic trip unit (ETU) of a 3VA2 circuit breaker, enabling ground-fault signal communication."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9927-0RC00","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/3VA9927-0RC00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}