The WOODWARD 8406-113 Rev P is an advanced Electronic Generator Control Package (EGCP-3) designed for comprehensive power management and generator control. This sophisticated microprocessor-based unit is engineered to manage complex power systems, including automatic sequencing, load sharing, and synchronization for both single and multiple generator sets in utility-parallel or islanded modes.
Product Overview
The EGCP-3 series serves as an all-in-one controller for engine-generator sets. The 8406-113 model provides integrated engine management, generator protection, and advanced power metering. It is capable of managing the entire lifecycle of power generation—from automatic start-up and synchronization to reactive power (VAR) control and automated shutdown—making it a cornerstone for mission-critical power infrastructure.
Technical Datasheet & Parameters
| Parameter | Specification |
| Model Number | EGCP-3 (8406-113) |
| Revision | Rev P |
| Input Power | 18–40 VDC (24V Nominal) |
| AC Voltage Inputs | 100–480 VAC (3-Phase) |
| Current Inputs | 5A or 1A CT secondaries |
| Communication | RS-422, RS-485, and LonTalk |
| Protection Functions | Over/Under Voltage, Over/Under Frequency, Reverse Power |
| Operating Temp | -20°C to +70°C |
| Display | Backlit LCD with keypad interface |
| Enclosure | Flush-mount rugged industrial housing |
Country of Origin
The WOODWARD 8406-113 EGCP-3 is designed and manufactured in the USA.
Application Fields
- Distributed Generation: Managing microgrids that combine renewable energy with diesel generators.
- Peak Shaving: Automatically paralleling generators with the utility grid to reduce peak demand charges.
- Data Centers: Providing high-speed synchronization and seamless transition for UPS backup systems.
- Hospital Power Systems: Ensuring reliable emergency power with automated load-shedding capabilities.
- Oil and Gas Platforms: Robust control for offshore power modules operating in harsh environments.
Technical Description
The Rev P hardware revision of the 8406-113 features enhanced processing speeds and improved noise immunity for industrial environments. The unit utilizes sophisticated algorithms for Isochronous Load Sharing and Baseload Control. It features a “Check Sync” function that monitors phase angle, voltage differential, and slip frequency before allowing breaker closure. The EGCP-3 also includes comprehensive engine monitoring via J1939 CANbus or analog sensors, providing real-time data on oil pressure, coolant temperature, and battery voltage.
Usage Instructions
- Panel Mounting: Install the 8406-113 in a cutout on the generator control panel door. Ensure the gasket is properly seated to maintain the environmental seal.
- CT and PT Connections: Ensure the Current Transformers (CT) and Potential Transformers (PT) are wired with correct polarity to ensure accurate power and direction sensing.
- Network Setup: If using multiple units for load sharing, connect the LonTalk or RS-485 communication lines in a daisy-chain configuration.
- Configuration: Access the setup menu via the front keypad or the Woodward Watch Window software. Define the generator’s rated capacity, voltage, and protection setpoints.
- Synchronization Test: Verify the phase rotation of the bus and the generator match before attempting the first automatic synchronization.
For detailed technical specifications and to request a quote for the WOODWARD 8406-113 Rev P, please visit our product portal.


