Overview

The GE 369B1874G0019 Digital Output Terminal Board is a robust and versatile module used in turbine control, excitation, and protection systems. It is commonly deployed within GE’s OC4000E and OC6000E distributed control platforms, where it serves as a key interface for managing digital output signals.

This board features 16 relay-based outputs, allowing it to switch both AC and DC loads with high reliability. Engineers use it to control solenoids, contactors, alarms, and other field devices that require discrete signal activation. Moreover, the board is built for demanding industrial environments, offering stable performance in desulfurization, denitrification, and other emissions control systems.

Its compact design and rack-mountable form factor make it easy to integrate into existing control cabinets. In addition to its switching capabilities, the board supports diagnostic monitoring and fault isolation, helping operators maintain system uptime and safety.

Technical Data

Typical Applications

• Turbine Control Systems: Activates solenoids, contactors, and trip relays in steam and gas turbines.

• Excitation and Protection: Interfaces with generator protection systems for fault signaling and breaker control.

• Emissions Control: Used in desulfurization and denitrification systems to manage process actuators.

• Industrial Automation: Supports discrete output control in petrochemical, mining, and manufacturing plants.

• System Retrofits: Compatible with legacy GE DCS platforms for modernization projects.

For instance, in a gas turbine control system, this board can trigger fuel valve solenoids and alarm circuits based on controller logic. In addition, its relay outputs ensure safe isolation and reliable switching under high-load conditions.

FAQ

Q1: What does the 369B1874G0019 board do?
It provides 16 relay-based digital outputs to control external field devices.

Q2: Is it compatible with GE control systems?
Yes, it integrates with OC4000E and OC6000E platforms.

Q3: What types of loads can it switch?
It supports both AC and DC loads, including solenoids and contactors.

Q4: How is it mounted?
It is rack-mounted within industrial control cabinets.

Q5: What industries use this module?
Industries include power generation, petrochemical, and heavy manufacturing.