The WNC Series WattNode® for Modbus® kilowatt-hour (kWh) energy and power meter operates over an EIA RS-485 network, capable of measuring 1, 2, or 3 phases with voltage ranges from 120 to 600 volts Vac and current ranges from 5 to 6,000 amps in both delta (phase to phase) and wye (phase to neutral) setups.
Our diagnostic LEDs offer phase-specific indications of power (green flashing) and reverse power (red flashing) to assist in diagnosing connection issues, such as reversed CTs or high line voltage. The WattNode Modbus meter also features a red/yellow/green communication LED to signal traffic, configuration errors, bus contention, and other conditions. Refer to the manual for detailed descriptions.
Measurements
- Includes floating point and integer registers
- True RMS Power: Watts (for Phase A, B, C, and total of all phases)
- Reactive Power: VARs (for Phase A, B, C, and total of all phases)
- Power Factor: (for Phase A, B, C, and total of all phases)
- True RMS Energy: Kilowatt-hours kWh (for Phase A, B, C, and total of all phases)
- Reactive Energy: kVAR-hours (for all phases)
- AC Line Frequency
- RMS Voltage: (for Phase A, B, C)
- Calculated RMS Current: (for Phase A, B, C)
- Demand
- Peak Demand
The Wattnode WNC-3D-240-MB is a single or three-phase meter designed for low voltage applications, 120/240V or 120/208V. It is compatible with various monitoring systems, including: SMA DatamanagerM or Datamanager M Lite, Huawei Smartlogger, Huawei SUN2000 single phase.
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