GE Control Mark V IS200TRLYH1D Relay Output Terminal Board

Description

The GE IS200TRLYH1D is a relay output terminal board used in the Mark VI turbine control system. It provides Form-C contact outputs for controlling external devices such as solenoids, alarms, and ignition transformers, and supports both simplex and TMR (Triple Modular Redundant) configurations.

Specifications

• Model: IS200TRLYH1D

• System: GE Mark VI turbine control

• Relay Channels: 6 plug-in magnetic relays

• Contact Type: Form-C outputs, fused and powered

• Voltage Rating: 24/125 VDC (not configurable for dry contact use)

• Connectors: JA1 for simplex; JR1, JS1, JT1 for TMR applications

• Terminal Blocks: 24 screw terminals (large), 4 screw terminals (small)

• Fuses: 12 onboard fuses for relay protection

• Transient Protection: Includes metal oxide varistor and clamp diode

• Control Interface: Typically managed by VCRC or VCCC boards

• Operating Temperature: –30°C to +65°C

Features

• Solenoid Integrity Sensing: Detects faulty solenoids via feedback on each relay circuit

• Redundancy Support: Compatible with both simplex and TMR configurations

• Secure Relay Outputs: Fused and powered Form-C contacts for reliable external device control

• Simplified Wiring: Clearly labeled terminal blocks for easy installation and maintenance

• Transient Suppression: Protects circuits from voltage spikes and electrical noise

• Modular Design: Easily integrates into GE’s Mark VI control architecture

• Application Versatility: Suitable for turbine startup, load control, and overspeed protection