Siemens 3VA9987 OTA10 3VA Server Module COM800 24v 3ZW1012 0VA01 5EA0 Server Module

Siemens 3VA9987-0TA10 COM800 data server accessory is the data concentrator for the 3VA2 COM800 breaker data server, enabling centralized data exchange for up to eight 3VA circuit breakers in fixed switchgear. It operates from a 24 V DC control supply and provides a single Fast Ethernet interface (100 Mbit/s, RJ45) with auto-MDI/X, supporting Modbus TCP and up to five active Ethernet connections, plus serial gateway functionality and Modbus RTU over the interface. The module offers one expansion interface for additional modules and supports PROFIBUS DP and PROFINET IO protocols for integration with industrial networks. Designed for installation in fixed switchboards in enclosed environments, the COM800 data server provides two bus termination connectors for the COM800 network and an IP20 protection rating, aligning with Siemens' SENTRON data server ecosystem.