Description
The WOODWARD 8440-1779 is a dedicated Automatic Transfer Switch (ATS) controller designed for critical power management. This device provides robust, automated control of transfer switches, ensuring seamless switching between primary utility power and backup generator power during outages. It is engineered to meet the reliability standards required for mission-critical industrial, commercial, and healthcare power systems.
Technical Parameters & Datasheet Details
- Manufacturer: Woodward
- Series: ATS / Power Management
- Model Number: 8440-1779
- Function: Automated power source monitoring and transfer control
- Voltage Sensing: True RMS monitoring of utility and generator phases
- Communication: Integrated ports for system monitoring and integration
- Operating Temperature: -20 to 70 °C
- Ingress Protection: Front panel IP65 (when mounted correctly)
- Mounting: Panel-mount
- Country of Origin: Germany / USA
Product Features
⚙️ Automated Switching Logic: Continuously monitors utility supply quality and triggers the transfer switch to move to backup power upon detection of a failure, preventing downtime.
🛡️ Source Monitoring: Features precise, real-time tracking of frequency, voltage, and phase rotation to ensure synchronization and safety before initiating a transfer.
⚡ Customizable Sequences: Supports user-defined time delays for engine start, transfer, and re-transfer commands, allowing the system to adapt to specific site requirements.
🖥️ Diagnostic Logging: Stores event data and system alarms, providing operators with a clear history of power events for easier maintenance and auditing.
🔌 Simplified Integration: Compatible with modern power management networks, allowing it to communicate status and control commands to external monitoring systems.
Frequently Asked Questions (Q&A)
❓ What is the primary purpose of the 8440-1779?
Its main job is to oversee the “handshake” between utility power and a generator set, ensuring the transfer switch operates safely and reliably without human intervention during a power failure.
❓ Can this controller handle non-linear loads?
Yes, thanks to its True RMS measurement capability, it accurately monitors voltage and current even in power systems with harmonic distortion or non-linear loads.
❓ What happens when utility power returns?
The controller automatically verifies that the utility power is stable for a set period before initiating the “re-transfer” process to move the load back from the generator to the main grid.
❓ Is the device field-configurable?
Yes, the 8440-1779 features an intuitive interface that allows technicians to set voltage trip points, timer values, and communication parameters directly on the device.
Recommended Woodward Series Inventory
- 8440-2150 (LS-5 V2 Controller)
- 8440-2050 (easYgen-3400XT)
- 8440-2051 (easYgen-3500XT)
- 8440-1030 (LS441B Circuit Breaker Controller)
- 8440-1006 (LS445B)
- 8440-2100 (LS-521)
- 8440-1846 (GCP-32)
- 8440-1700 (easYgen-3100)
- 8440-1701 (easYgen-3200)
- 8440-1010 (LS411B)

