{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3VA9987-0TA10","brand":"Siemens","brandSlug":"siemens","productSlug":"3VA9987-0TA10","canonicalUrl":"https://aoctrl.com/siemens/3VA9987-0TA10","factsUrl":"https://aoctrl.com/api/mcp/products/3VA9987-0TA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON COM800 breaker data server, 3VA9987-0TA10, PROFIBUS DP + PROFINET IO + Modbus RTU, connects up to 8 3VA breakers, 90 x 90 x 33.5 mm, IP20.","salesMarkdown":"The Siemens 3VA9987-0TA10 is a SENTRON COM800 breaker data server — an accessory that sits in the fixed switchboard (IP20 per IEC 60529) and pulls data from up to eight 3VA circuit breakers over the internal communication bus, then serves it upstream via PROFIBUS DP, PROFINET IO, or Modbus RTU. It's the bridge between the breaker compartment and the plant network, sized at 90 mm wide, 90 mm high, and 33.5 mm deep — five modular width units on the DIN rail. Mounting position is any. The RJ45 Fast Ethernet interface runs at 100 Mbit/s with auto-MDI(X) and a serial gateway for legacy fieldbus drops. It directly connects eight 3VA breakers — that's the practical limit per COM800. If your switchboard has more than eight breakers to monitor, you add a second server on the same 20 m communication bus. The bus termination connectors (two included) must be fitted at the physical ends of the daisy chain. Power consumption is 5 W, drawing 1.1 A max. The supply is screw-terminal, removable/pluggable. Operating temperature spans -40 °C to 80 °C. Overvoltage category I and pollution degree 2 mean it's designed for clean, protected environments inside the enclosure — not for direct line-side exposure. Protection class III per IEC 61558 confirms it runs on SELV/PELV.","metaTitle":"Siemens 3VA9987-0TA10 SENTRON COM800 Breaker Data Server, PR","metaDescription":"Siemens 3VA9987-0TA10 SENTRON COM800 breaker data server. PROFIBUS DP, PROFINET IO, Modbus RTU. Connects up to 8 3VA breakers. IP20. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"33.5 mm","Width":"90 mm","Height":"90 mm","Maximum":"80 °C","Minimum":"-40 °C","Accessories":"Communication and measurement function","lifecycle_stage":"current","Mounting Position":"any","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"COM800 breaker data server","protection class IP":"20 acc. to IEC60529","Overvoltage Category":"I","PROFIBUS DP protocol":"Yes","PROFINET IO protocol":"Yes","Design Of The Product":"Accessories for 3VA","Suitability For Operation":"Installation in fixed switchboard inside enclosed rooms","Consumed Current / Maximum":"1.1 A","power loss [W] / rated value":"5 W","Number Of Modular Width Units":"5","Type Of Electrical Connection":"removable/pluggable","transfer rate / 2 / for Ethernet":"100 Mbit/s","Communication With Function Module":"Yes","Operating Resource Protection Class":"III according to IEC61558","Electronic Tripping Unit Power Supply":"Yes","at the Ethernet interface / auto-MDI(X)":"Yes","at the Ethernet interface / serial gateway":"Yes","Design Of Cable / Connectable / Twisted Pair":"Yes","Number Of Interfaces / For Expansion Modules":"1","detection of switch position: On, Off, Tripped":"Yes","Data Exchange With The Electronic Tripping Unit":"Yes","Number Of Circuit Breakers / Directly Connectable":"8","number of interfaces / according to Fast Ethernet":"1","at the communication interface / Modbus RTU protocol":"Yes","number of active connections / at the Ethernet interface":"5","Total Length / Of The Circuit Breaker Communication System":"20 m","type of electrical connection / of the fast Ethernet interface":"RJ45","Type Of Electrical Connection / At The Inputs For Supply Voltage":"screw-type terminals","Number Of Interfaces / Of The Circuit Breaker Communication System":"2","Number Of Bus Termination Connectors / On Circuit Breaker Communication System":"2","Relative Symmetrical Tolerance / Of The Operating Range Of The Control Feed Voltage":"20 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=358007&mlfb=3VA9987-0TA10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3VA9987-0TA10/alternatives.json"},"ai":{"faq":[{"question":"What is 3VA9987-0TA10's listed depth?","answer":"33.5 mm."},{"question":"What is 3VA9987-0TA10's listed width?","answer":"90 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3VA9987-0TA10","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/3VA9987-0TA10 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}}