Description
The GE IS200DRLYH1BCC is a Simplex Relay Output Terminal Board designed for the GE Mark VI Speedtronic Turbine Control System. It provides relay output interface functions between the Mark VI controller and external field devices, including solenoids, actuators, alarms, and auxiliary control circuits.
The DRLY terminal board is a compact relay output interface board with 12 Form-C dry contact relay outputs. It connects to GE VCCC, VCRC, or VTUR processor boards through a dedicated cable connection and is used in turbine control applications requiring reliable discrete output switching.
The IS200DRLYH1BCC belongs to the GE Speedtronic Mark VI relay output family and is commonly used in gas turbine, steam turbine, and generator control systems for field device control and status management.
🔹 Product Parameters Datasheet
| Parameter | Specification |
|---|---|
| Brand | GE (General Electric) |
| Model | IS200DRLYH1BCC |
| Series | Mark VI Speedtronic Turbine Control System |
| Product Name | Simplex Relay Output Terminal Board |
| Origin / Place of Origin | USA |
| Product Status | Tested Used / Refurbished Spare / New Surplus |
| Dimensions | Approx. 178 mm × 330 mm × 40 mm |
| Weight | Approx. 0.8–1.2 kg |
| Power Requirement | External Control System Power Supply |
| Relay Configuration | 12 Form-C Dry Contact Relay Outputs |
| Discontinued Status | Legacy Product, Available as Replacement Spare |
🔹 Technical Features
🔸 Designed for GE Mark VI turbine control architecture
🔸 Simplex relay output terminal board design
🔸 Provides 12 relay output channels
🔸 Supports Form-C dry contact switching
🔸 Connects with GE VCCC, VCRC, and VTUR processor boards
🔸 Suitable for solenoid, alarm, and auxiliary control outputs
🔸 Compact wall-mounted installation design
🔸 Supports long-term turbine control system maintenance
🔸 Used in gas turbine and steam turbine automation applications
🔹 Common Questions & Answers
Q: What is the main function of IS200DRLYH1BCC?
A: The IS200DRLYH1BCC provides relay output switching between the GE Mark VI controller and external field devices such as solenoids, alarms, and actuators.
Q: How many relay outputs does this board provide?
A: The DRLY terminal board provides 12 Form-C dry contact relay outputs.
Q: Is IS200DRLYH1BCC a CPU module?
A: No. It is an output terminal interface board used with GE Mark VI processor modules.
Q: What GE systems use this relay board?
A: It is mainly used in GE Mark VI Speedtronic turbine control systems for industrial turbine protection and control applications.
Q: What should be checked before replacement?
A: Confirm the complete part number, hardware revision, cable connection type, relay configuration, field wiring, and Mark VI system configuration before installation.
Q: What are common failure symptoms?
A: Possible symptoms include relay output failure, incorrect actuator response, loss of discrete output signals, or control system diagnostic alarms. Field wiring and external devices should also be checked.
🔹 Recommended GE Models
- IS200DRLYH1A – Mark VI Simplex Relay Output Terminal Board
- IS200DRLYH1B – Mark VI Simplex Relay Output Terminal Board
- IS200TRLYH1B – Mark VI Relay Output Terminal Board
- IS200TRLYH1BCC – Mark VI Relay Output Terminal Board
- IS200TRLYH1BDC – Mark VI Relay Output with Coil Sensing Board
- IS200TRLYH1C – Mark VI Relay Output Terminal Board with Voltage Sensing
- IS200TREGH1B – Mark VI Emergency Trip Terminal Board
- IS200VTURH1B – Mark VI Primary Turbine Protection Board
- IS200VCCC1B – Mark VI Control Processor Board
- IS200VCRC1B – Mark VI Controller Board
- IS200UCVEM08B – Mark VI VME Controller Board
- IS200TBAIH1C – Mark VI Analog Input Terminal Board
- IS200TBCAH1B – Mark VI Contact Input Terminal Board
- IS220PDOAH1A – Mark VIe Discrete Output I/O Pack Module
- IS420UCSCH2A – Mark VIe Controller Module



