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GE IS200TRLYH1BGF｜Terminal Relay Board｜
This relay output terminal board provides flexible, multi-voltage relay control for external devices in the Mark VI system. It is designed for switch control, alarm annunciation, interlock driving, and solenoid/actuator control, offering a combination of power-driving and dry-contact relay outputs to meet diverse field interface requirements.
Core Functions
12 relay output channels total
Channels 1–6:
Configurable as dry contacts or solenoid valve drives
Equipped with MOV transient suppression for inductive loads
Channels 7–11:
Isolated Form-C (SPDT) contacts
Intended for alarm outputs and interlock signaling
Channel 12:
Dedicated isolated Form-C contact
Typically used for critical functions (e.g., ignition transformer control)
Relay Configuration
Relay type: 12 × Form-C (SPDT) relays
Maintains clear separation between control logic and field power circuits
Suitable for long-life operation in turbine control environments
Power Supply & Voltage Selection
Field load supply compatibility:
24 V DC
125 V DC
115 V AC
230 V AC
Voltage selection:
Jumper-selectable
Each supply path protected by independent fuses
Board power (logic):
From Mark VI system rack: +5 V / +15 V / –15 V DC
Typical power consumption: approximately 12 W
Interface & Wiring
Terminal blocks:
2 × 24-point terminal blocks
48 terminals total for field wiring
Communication interface:
JA1 D-type connector for connection to the Mark VI I/O processor
Supports signal feedback voltage monitoring for relay output verification
Environmental Specifications
Operating temperature: 0 °C to +60 °C
Storage temperature: –40 °C to +85 °C
Mechanical Characteristics
Form factor: Mark VI standard I/O terminal board
Dimensions (approx.): 178 × 330 × 25 mm
Weight (approx.): 1.2 kg
Installation & Protection
Installation method:
Mark VI standard I/O rack terminal board slot installation
Supports hot plugging and unplugging
Protection rating: IP20
Suitable for installation inside control cabinets
Compatibility & System Integration
Fully compatible with Mark VI PPRO modules
Suitable for relay output expansion in:
Single-redundant systems
Triple-redundant (TMR) systems
Seamlessly integrates with Mark VI system software and protection logic
Typical Applications
Solenoid valve actuation
Alarm and annunciator driving
Interlock and permissive signaling
Ignition system control
Auxiliary device switching in turbine control panels
GE IS200TRLYH1BGF｜Terminal Relay Board｜
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By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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