Parameters Brand: Schneider Electric Series: PowerLogic PM5500 (PM5000 family) Model / Part: PM5500 Power & Energy Meter Product Type: Multifunction digital power and energy meter Application: Energy, power, and power quality monitoring for three‑phase electrical systems Display: Monochrome graphical LCD with white LED backlight, 128 × 128 resolution Display Protection: Front IP54 (upgradeable to IP65 with accessory), body IP30 Mounting: Panel mount (vertical orientation) Measurement Method: True RMS up to the 63rd harmonic, 128 samples per cycle Voltage Input Range: 20 – 400 V L‑N / 20 – 690 V L‑L (Wye) or 20 – 600 V L‑L (Delta) Measurement Category: CAT III Current Input: CT secondary 5 A (Class 0.2S) or 1 A (Class 0.5S), 50 mA – 10 A range Measured Parameters: Voltage, Current (per phase and neutral) Active, Reactive, Apparent Power Power Factor, Frequency Active, Reactive, Apparent Energy (four‑quadrant) Min/Max, Demand, Peak values with timestamp Harmonic / THD analysis, Unbalance values Energy Accuracy: Active energy Class 0.2S; Reactive energy Class 2; Apparent energy Class 0.5 Power Accuracy: Active power Class 0.2; Reactive power Class 1; Apparent power Class 0.5 Voltage Accuracy: Class 0.1; Current accuracy Class 0.2 Frequency Accuracy: Class 0.05 Communication Interfaces: RS‑485 (Modbus RTU / ASCII) Ethernet (Modbus TCP, BACnet/IP, EtherNet/IP, DNP3*; model and firmware dependent) Digital Inputs / Outputs: Configurable digital inputs and solid‑state digital outputs (model dependent) Operating Frequency: 45 – 70 Hz Operating Temperature Range: Typically –25 °C to +70 °C Humidity: 5 % – 95 % RH non‑condensing Pulse / Output Constants: Configurable metering pulses for kWh / kVAh / kVARh Standards Compliance: IEC 61557‑12, IEC 61010‑1, IEC 61326‑1, and measurement category standards Weight: Approx. 300–450 g (varies by model/configuration)