Product overviewHarmonic & Power Quality energy analyzer for single- and three-phase systems (up to 3 single-phase lines). Model code PRA64-EB102-EM0, commercial name FEMTO PRO D4 ECT PLUG RS485 H PQ LOG ENERGY. Accuracy class 0.5S (accuracy includes external ECT current transformers, not included; e.g. 100A PFAE000-09). Measures THD and TDD on voltage and current, neutral current, max/min voltages, max current and power, and active energy per phase. Performs single-harmonic analysis up to 31st order for three phase voltages and three line currents in real time. Integrated datalogger records total and per-phase energy counters and voltage events (interruptions, sags and swells). Phase sequence detection and configuration included. Four operating timers and eight configurable alarms with support for complex logic conditions. Graphical LCD display and calibration LED. Communication: Modbus-RTU over RS485. Firmware remotely upgradeable and expandable via PUK codes for future upgrades. DIN-rail mounting, 4 modules. Installation via RJ45 connectors and removable terminal blocks. Power supply 230–240 VAC. Complies with EN 50470-1 and EN 50470-3.
Main features- Harmonic & Power Quality energy analyzer for single-/three-phase (up to 3 single-phase lines)
- Accuracy class 0.5S (with external ECTs)
- Single-harmonic analysis up to 31st order (real time) for 3 phase voltages and 3 line currents
- Measurements: THD, TDD (voltage & current), neutral current, max/min voltage, max current and power, active energy per phase
- Integrated datalogger for energy counters and voltage-event recording (interruptions, sags, swells)
- 4 timers and 8 configurable alarms with complex logic support
- Graphical LCD display and calibration LED
- Modbus-RTU over RS485 communication; firmware upgradeable remotely; expandable via PUK codes
Installation & hardwareDIN-rail mounting occupying 4 modules. Connection via RJ45 connectors and removable terminal blocks. Requires external ECT current transformers (not included); example: 100A model code PFAE000-09. Power supply 230–240 VAC.
Technical specifications- Type: Harmonic & Power Quality Energy Analyzer
- Phases supported: Single-phase and Three-phase (up to 3 single-phase lines)
- Accuracy class: 0.5S
- Current transformers: External ECTs (not included); example 100A PFAE000-09
- Harmonic analysis: Single-harmonic up to 31st order on 3 phase voltages and 3 line currents (real time)
- Measurements: THD, TDD (voltage & current), neutral current, max/min voltage, max current and power, active energy per phase
- Datalogger: Integrated; records total and per-phase energy counters and voltage events (interruptions, sags, swells)
- Timers & Alarms: 4 timers; 8 configurable alarms with complex logic support
- Display & Indicators: Graphical LCD; calibration LED
- Communications: Modbus-RTU over RS485
- Firmware: Remotely upgradeable; expandable via PUK codes
- Mounting: DIN-rail, 4 modules
- Connections: RJ45 connectors and removable terminal blocks
- Power supply: 230–240 VAC
- Standards: EN 50470-1, EN 50470-3