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The Woodward 8444-1091, also cataloged as the 8444-1091 Multifunction Relay and Measuring Transducer, operates as a dedicated hardware component for single-phase and three-phase power monitoring within MFR300 Series platforms.
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The Woodward 8444-1091, also cataloged as the 8444-1091 Multifunction Relay and Measuring Transducer, operates as a dedicated hardware component for single-phase and three-phase power monitoring within MFR300 Series platforms.
| Parameter | Specification |
|---|---|
| Model | 8444-1091 |
| Brand | Woodward |
| Origin | USA |
| Weight | 2.45 kg |
| Dimensions | 273.6 mm x 214.1 mm x 59.2 mm |
| Operating Temp | -20 deg C to +70 deg C (-4 deg F to +158 deg F) |
| Power Consumption | Maximum 5 W |
| Power Supply Input | 12/24 VDC (8 to 32 VDC operational range) |
| Voltage Inputs | 3 true RMS voltage input channels |
| Current Inputs | 3 true RMS current input channels |
| Voltage/Current/Freq Accuracy | Class 0.5 |
| Power/Energy Accuracy | Class 1 (Real and Reactive) |
| Communication Protocols | CANopen, Modbus |
Operating across a wide 8 to 32 VDC power supply range, the 8444-1091 samples 3 true RMS voltage and 3 true RMS current channels to provide Class 0.5 precision across electrical variables. Onboard digital signal conditioning minimizes latency to preserve rapid actuator loop feedback response and load-sharing dynamics in engine and generator control loops. Internal board components consume a maximum of 5 W, optimizing thermal heat sink dissipation profiles within the compact 273.6 mm x 214.1 mm x 59.2 mm enclosure across the extended -20 deg C to +70 deg C operating range.
Q: What power supply range is supported by the 8444-1091 auxiliary power input?
A: The module operates on a nominal 12/24 VDC supply with a wide input tolerance window of 8 to 32 VDC.
Q: What measurement accuracy classes apply to the voltage, current, and power telemetry?
A: Voltage, current, and frequency measurements adhere to Class 0.5 accuracy, while real and reactive power/energy readings meet Class 1 standards.
Q: Which fieldbus protocols are integrated for supervisory data access?
A: The hardware natively supports CANopen and Modbus communication protocols for telemetry and protection management.
