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Woodward 8444-1082B
Product Overview
A high-precision, DIN-rail mounted multifunction transducer designed for three-phase power system monitoring and protection. It accurately measures true RMS voltage, current, power, frequency, and energy, while providing configurable alarm relays and communication interfaces for seamless integration into industrial control systems.
Detailed content
Technical Specifications
- Input Voltage: 3 × 50–690 VAC (phase-phase), 50/60 Hz
- Input Current: 3 × 1–5 A AC (CT secondary)
- Accuracy Class: 0.5 for voltage/current/frequency; 1.0 for power/energy
- Power Supply: 24 VDC (18–32 VDC)
- Relay Outputs: 4 configurable change-over relays; 1 “Ready” relay
- Communication: Modbus RTU (RS-485), CANopen (optional)
- Operating Temperature: -20 °C to +60 °C
- Dimensions: 120 mm × 100 mm × 60 mm
- Weight: 0.5 kg
Functional Characteristics
- True RMS measurement immune to harmonics and transients
- Configurable over/under voltage, frequency, and power alarms
- Built-in kWh/kvarh energy counters (max 10¹² units)
- Isolated inputs/outputs for noise immunity and safety
- LED status indicators for power, communication, and alarms
- Software-configurable via USB/RS-232 service port
- Compact DIN-rail design for easy cabinet installation
Application Scenarios
Generator set monitoring, industrial power distribution panels, marine electrical systems, renewable energy plants, and critical infrastructure power quality management.
