GE IS210DRTH1AA

The IS210DRTH1AA is a discrete relay terminal board for GE Speedtronic Mark VIe turbine control system. This IS210DRTH1AA belongs to the Mark VIe I/O pack family, designed to provide field wiring termination for discrete relay output signals, interfacing between the core Mark VIe control I/O module and on-site auxiliary relays, solenoid valves, alarm annunciators and equipment interlock circuits. The suffix AA defines the hardware revision and component layout of this terminal variant.

This IS210DRTH1AA is conformal coated to resist dust and moisture in power plant control cabinets. It carries screw terminal blocks for convenient field wiring, with signal isolation and status indicator circuits for channel fault troubleshooting. It works with the matching Mark VIe I/O pack to receive digital command signals and distribute relay drive signals to external field devices. It supports 24VDC field signal loops and is built for continuous operation in turbine control cabinet environments.

The IS210DRTH1AA is widely deployed on GE gas turbine, steam turbine and generator control packages using Mark VIe architecture. The Mark VIe platform is a mature TMR turbine control system. Most available IS210DRTH1AA units are tested surplus spare parts for cabinet overhaul and emergency wiring terminal replacement of legacy turbine control racks.