Description

GE IS200TREGH1A Emergency Trip Terminal Board

Configured for emergency trip solenoid signal termination in GE Mark VI Speedtronic turbine control systems, the GE IS200TREGH1A (IS200TREG Emergency Trip Terminal Board) provides direct physical/electrical execution for trip command distribution, solenoid driver interfacing, and protective circuit isolation.

Hardware Specifications

Parameter	Specification
Model	IS200TREGH1A
Brand	GE
Origin	United States
Series	Mark VI Speedtronic
Module Type	Emergency Trip Terminal Board
Product Function	Trip solenoid termination and emergency trip interface
Number of Trip Solenoids	3
Relay Outputs	3
Trip Inputs	125 VDC / 24 VDC
Trip Outputs	Supports 3 trip solenoid drivers, 24 VDC coil typical
Solenoid Response Time	0.1 sec
Contact Rating	2 A at 30 VDC; 0.5 A at 125 VDC
Isolation	Galvanic isolation between trip circuits and control logic
Connectors	Screw terminals for field wiring; ribbon connectors to control rack
Protection Functions	Surge suppression, arc suppression, fault isolation
Mounting	Panel mount or DIN-rail mount
Weight	0.65 kg
Operating Temp	-30 to +65 deg C
Humidity	Up to 95% RH non-condensing
Power Consumption	Not specified

Industrial Control I/O Scaling and Firmware Flash Compatibility

The IS200TREGH1A operates as a terminal interface assembly within the GE Mark VI Speedtronic protection architecture. The board receives trip commands from the controller, interfaces with emergency trip circuits, and controls energizing or de-energizing of turbine trip solenoids.

The module supports industrial control I/O density scaling by providing multiple isolated trip output channels within a dedicated emergency shutdown interface. Galvanic isolation separates external trip devices from controller logic circuits, reducing electrical coupling between field protection wiring and internal control electronics.

The terminal board incorporates protection functions including surge suppression, contact arc suppression, and fault isolation. Its interface structure is designed for integration with Mark VI trip logic modules and associated turbine protection hardware.

Frequently Asked Questions

Q: How many trip solenoid circuits can the IS200TREGH1A interface?
A: The board supports three trip solenoid driver channels and three relay outputs for emergency trip circuit control.

Q: What input voltage levels are supported for trip commands?
A: The module supports trip input circuits at 24 VDC and 125 VDC levels according to the provided specifications.

Q: Does the IS200TREGH1A directly provide mechanical turbine shutdown action?
A: No. The board provides electrical termination and switching interface functions for trip solenoids. Mechanical shutdown is performed by the connected turbine protection devices.

Field Installation Guidelines

Install the IS200TREGH1A according to GE Mark VI cabinet drawings and verify terminal assignments before connecting emergency trip wiring.

Route trip solenoid cables separately from high-current switching conductors to reduce electromagnetic interference. Use appropriate grounding and shielding practices for signal wiring according to the control cabinet design.

Check screw terminal torque, ribbon connector engagement, and field wiring polarity before commissioning. Verify trip circuit continuity and insulation condition during installation and maintenance procedures.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems