GE IS200TDBTH2A Discrete Contact Input Terminal Board

Product Description

The GE IS200TDBTH2A (TDBT) is a group-isolated discrete contact input terminal board for GE Speedtronic Mark VI and Mark VIe turbine control systems. It is designed as the field wiring interface for turbine safety interlock and protection signals, supporting 24 discrete contact inputs. It provides signal filtering, surge suppression and group isolation before transmitting signals to matched I/O packs such as IS220PDIOH1A. It is widely used in gas turbine, steam turbine and heavy rotating machinery control cabinets, and is a critical spare part for power plant control system maintenance and retrofit.

Product Functions

• Receive field contact signals from limit switches, emergency stop buttons, relay auxiliary contacts and sensors
• Signal conditioning, noise filtering and electrical isolation to protect downstream I/O modules
• Transmit discrete input status to Mark VIe I/O packs for safety interlock and trip logic judgment
• Support TMR triple modular redundant configuration for high-reliability turbine protection loops
• Onboard terminal blocks for easy field wiring connection and channel inspection
• Withstand strong electromagnetic interference in power plant and heavy industrial environments

Application Scenarios

• Gas turbine and steam turbine Mark VI / Mark VIe control and protection systems
• Power plant generator sets, compressor and large pump safety interlock cabinets
• Oil & gas, petrochemical heavy rotating machinery control equipment
• Industrial energy management and critical safety shutdown control systems
• Spare replacement and repair of existing GE Speedtronic control racks

FAQ