Description
The WOODWARD 8440-1030 LS441B is a high-performance digital circuit breaker controller engineered for precise power management. It integrates essential protection, synchronization, and load control functions into a single, compact unit. This controller is specifically designed to measure true RMS voltage and current on both sides of a circuit breaker, enabling seamless synchronization between generators and utility mains or tie-breakers.
Technical Parameters & Datasheet Details
- Manufacturer: Woodward
- Series: LS 4 Circuit Breaker Control & Protection
- Model Number: 8440-1030 (LS441B)
- Display: Two-line LC display
- Measurement: True RMS voltage and current sensing
- Communication: CAN bus-based network
- Output: 7 configurable relay outputs
- Operating Temperature: -20 to 70 °C
- Humidity: 95% non-condensing
- Power Supply: 24 Vdc (18 to 30 Vdc)
- Dimensions: Standard industrial compact controller size (cabinet front or DIN-rail mount)
- Weight: Approximately 0.8 kg – 1.2 kg (typical for LS4 series)
- Country of Origin: USA / Germany (Manufacturing location may vary)
Product Features
⚙️ Advanced Synchronization: Facilitates automated synchronization and breaker closing commands based on configurable phase angles and voltage matching. 🛡️ Integrated Protection: Includes comprehensive ANSI-compliant protections such as over/under-voltage (59/27), over/under-frequency (81O/81U), and vector shift/ROCOF (78/81RL). ⚡ Softload Control: Features zero-power transfer (softload) functionality for smooth transition between power sources. 🖥️ Easy Configuration: Supports both PC-based software configuration and convenient on-site setup via the front panel interface. 🔌 Dead Bus Management: Equipped with dedicated logic for dead bus start and synchronization over transformers.
Frequently Asked Questions (Q&A)
❓ What is the main role of the LS441B controller? The LS441B is primarily used to manage circuit breakers in power systems, providing the necessary intelligence to synchronize generators with the grid or other buses and ensuring safe, protected operation.
❓ Can this controller function independently? Yes, it can operate as a stand-alone breaker controller or integrate into a larger network with other Woodward GCP or easYgen controllers via CAN bus communication.
❓ What does “True RMS” sensing mean for this device? It means the controller accurately calculates the effective value of non-sinusoidal voltages and currents, providing higher precision in monitoring compared to average-sensing instruments.
❓ How are alarms and setpoints managed? Users can configure trip/control setpoints and timing delays for each alarm directly through the controller’s interface or by connecting to the unit via PC.
Recommended Woodward Series Inventory
- 8440-1006 (LS445B)
- 8440-1510 (LS415B)
- 8440-2150 (LS-5 V2)
- 8440-2050 (easYgen-3400XT)
- 8440-2051 (easYgen-3500XT)
- 8440-1845 (GCP-31)
- 8440-1846 (GCP-32)
- 8440-1700 (easYgen-3100)
- 8440-1701 (easYgen-3200)
- 8440-1010 (LS411B)
