The 5441-693 (Model: 5441-693) is a precision-engineered digital synchronizer module within Woodward’s specialized Sync-Check series. It is designed to facilitate the safe and automatic paralleling of a generator with a utility grid or another live bus. By continuously analyzing electrical parameters, the 5441-693 (Part Number: 5441-693) ensures that the generator’s voltage, frequency, and phase angle are perfectly matched before issuing a breaker closure command, effectively preventing catastrophic out-of-phase synchronization.
This module is an essential safeguard in power generation environments, providing high-accuracy monitoring of the voltage slip and phase window. The 5441-693 (Model: 5441-693) operates with a response delay of less than 50 ms, meeting the rigorous IEEE C37.106 standards for synchronization hardware. Its compact design and RS-485 communication capabilities make it an ideal choice for both new control cabinet installations and the retrofitting of legacy turbine and engine governor systems.
The 5441-693 (Model: 5441-693) provides high-fidelity sensing and deterministic relay outputs for critical breaker control.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 5441-693 |
| Product Type | Digital Synchronizer / Sync-Check Module |
| Input Signals | Generator & Bus Side PT (100–150 VAC) |
| Slip Frequency Range | Adjustable ±0.1 Hz to ±2.0 Hz (Default: ±0.5 Hz) |
| Phase Angle Window | Configurable ±5° to ±30° |
| Phase Accuracy | Within ±1° |
| Response Time | < 50 ms |
| Power Supply | 24 VDC (18–32 VDC Range) |
| Communication | RS-485 Modbus for Status Feedback |
| Output Contacts | Isolated Relay (Sync Permit/Deny) |
| Mounting | Standard 35mm DIN Rail (EN 60715) |
| Operating Temp | –20°C to +70°C |
| Standards | IEEE C37.106, CE, UL 508, IEC 61000-6-2/4 |
| Weight | 1941g (Shipping Weight) /0.8 kg (Unit) |
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