Product Description

The 369B1874G0019 is a heavy-duty Digital Output Terminal Board engineered for GE’s legacy and modern distributed control systems, specifically the OC4000E and OC6000E platforms. This module acts as the critical physical interface between the control processor and field-side actuators. It is designed to convert low-level logic signals into high-capacity switching actions, making it indispensable for turbine control, excitation, and system protection.

Equipped with high-reliability relay-based outputs, the 369B1874G0019 facilitates the switching of both AC and DC loads. This mechanical isolation provides an additional layer of safety, protecting the sensitive control electronics from field-side electrical noise and surges. The board is ruggedized for extreme industrial environments, including emissions control sectors such as desulfurization and denitrification plants, where stable performance under thermal stress is mandatory.

Technical Specifications

• Manufacturer: GE (General Electric)

• Model Number: 369B1874G0019

• Product Type: Relay-Based Digital Output Terminal Board

• System Compatibility: GE OC4000E and OC6000E Distributed Control Systems (DCS)

• Output Architecture: Multi-channel discrete relay outputs

• Load Compatibility: Supports both AC and DC switching for solenoids and contactors

• Diagnostic Capabilities: Integrated fault isolation and output status monitoring

• Mounting Configuration: Standard industrial rack-mount design

• Operating Temperature Range: -30°C to +65°C

• Physical Dimensions: 26 cm x 23 cm x 18 cm

• Net Weight: 5.0 kg

• Construction: Industrial-grade PCB with high-current trace reinforcement

Application Scenarios

The 369B1874G0019 is frequently specified for critical infrastructure roles, including:

• Turbine Control Systems: Driving fuel valve solenoids, ignition contactors, and master trip relays in gas and steam turbines.

• Generator Protection: Interfacing with breaker control circuits and fault signaling matrices.

• Emissions Management: Managing process actuators in large-scale desulfurization (FGD) and denitrification (SCR) systems.

• System Modernization: Serving as a drop-in replacement for legacy GE control boards during plant-wide DCS retrofits.