GE IS200EXHSG3A Mark V EX2100 Exciter HS Relay Driver Board

Hardware Specifications

Industrial Control and Relay Interface

The IS200EXHSG3A uses discrete electrical relay-driver paths rather than analog process signal conditioning. The specified 24-125 VDC range defines the supported field-side voltage range, while the current rating reaches up to 5 A per channel.

The +24 VDC supply provides the board operating power. In addition, the specified 1500 V AC isolation voltage separates the relevant electrical domains. Therefore, installers should maintain the specified isolation arrangement and avoid unintended conductive paths between field wiring and control wiring.

For system integration, technicians should verify the board revision, terminal assignments, and mating hardware against the applicable GE documentation. Firmware or system-level compatibility should also be confirmed before replacing a board with a different hardware revision.

Frequently Asked Questions

Q: What supply voltage does the IS200EXHSG3A require?
A: The specified supply voltage is +24 VDC.

Q: What voltage and current can the relay channels handle?
A: The specified voltage range is 24-125 VDC, with a current rating of up to 5 A per channel.

Q: Can the board be removed while the excitation system remains energized?
A: The supplied data does not specify hot-swap capability. Follow the applicable EX2100 shutdown, isolation, and electrical safety procedure before removing or installing the board.

Field Installation Guidelines

• Verify the complete board model and hardware revision before installation.
• Confirm the terminal assignment against the applicable GE system documentation.
• Remove power and establish the required electrical isolation before handling the board unless the approved system procedure explicitly permits energized work.
• Route relay and power conductors separately from sensitive low-level signal wiring where practical.
• Keep field wiring mechanically secured and prevent excessive force on terminal connections.
• Maintain the specified isolation arrangement when connecting external DC circuits.
• Check conductor polarity and field voltage before energizing the relay-driver circuits.
• Confirm that each connected load remains within the specified voltage and 5 A per-channel current rating.
• Inspect the board and connectors for contamination, loose hardware, or physical damage before commissioning.
• After installation, verify relay output operation through the applicable EX2100 control-system test procedure.
• Use the applicable GE technical documentation to confirm board revision and system compatibility before replacement.