GE IS200WROGH1A Terminal Boards

GE IS200WROGH1A Terminal Board Option Module

The GE IS200WROGH1A is a terminal board option module used within the Mark VI and Mark VIe control system platforms. Installed as a daughter board on compatible relay output terminal boards, it provides voltage sensing, circuit protection, and output conditioning functions. The module supports both AC and DC field voltages and is designed to improve monitoring and protection of relay-driven external circuits.

Product Specifications

Function within Mark VI Systems

The IS200WROGH1A serves as an auxiliary module that mounts directly onto compatible terminal boards through onboard connectors. It extends the functionality of the host board by adding voltage monitoring, protection, and suppression circuitry associated with relay output applications.

Its design allows the control system to monitor external circuit conditions while maintaining electrical isolation between field voltages and the control electronics.

Voltage Monitoring and Isolation

A key feature of the module is its isolated voltage sensing capability. The sensing circuitry can detect the presence or loss of field voltage and communicate status information back to the control system without exposing low-voltage control electronics to higher field voltages.

Because the sensing inputs are non-polarized, the module can be used with both AC and DC circuits without requiring specific polarity orientation.

Circuit Protection

The module incorporates individual fused protection using a 3.15 A, 250 V time-delay fuse. This arrangement provides overcurrent protection for connected field circuits while tolerating temporary inrush currents that may occur when energizing relays or external loads.

Fuse status indication assists maintenance personnel in identifying field circuit protection events during troubleshooting.

Suppression and Output Conditioning

Integrated suppression components, including capacitive and RC network elements, help reduce transient voltages generated by inductive loads during relay switching operations.

These suppression circuits limit the effects of back electromotive force (back EMF), helping protect relay contacts and associated electronics from switching-induced voltage spikes.

Installation Considerations

The IS200WROGH1A is not intended for standalone operation. It is designed to be installed on a compatible host terminal board, such as relay output boards within the Mark VI or Mark VIe control architecture.

Proper compatibility between the option module and host terminal board should be verified during maintenance or spare part replacement activities.

Frequently Asked Questions

Q: What is the primary purpose of the IS200WROGH1A module?

A: It adds voltage sensing, fuse protection, and suppression functions to compatible Mark VI or Mark VIe relay output terminal boards.

Q: Can the module be used with both AC and DC field voltages?

A: Yes. The module supports 24 VDC, 48 VDC, 125 VDC, 120 VAC, and 240 VAC circuits and does not require specific polarity orientation.

Q: Does the module provide electrical isolation?

A: Yes. Integrated isolated voltage sensing allows field voltage status to be monitored while maintaining isolation from the control electronics.