Product overviewSingle/Three-Phase Energy Analyzer (up to 3 single-phase lines). Model PFA74-10102-E00 ATTO PRO D4. Accuracy class 0.5S. Connection via external CTs (5A or 1A, CTs not included). Measures harmonic and disturbance metrics on voltage and current and provides active energy per phase. Power supply: 230–240 VAC. Compliance: EN 50470-1, EN 50470-3.
Features- Measures THD and TDD on voltage and current
- Neutral current measurement
- Maximum and minimum voltage detection
- Maximum current and power detection
- Active energy measurement per phase
- Phase sequence detection and configurable phase settings
- Four operating timers
- Eight configurable alarms with support for complex logic conditions
- Calibration LED for energy
- Status LED
- RS485 communication LED
- Communication via Modbus-RTU over RS485
- Firmware remotely upgradeable and expandable through PUK codes
- DIN-rail mounting, 4 modules width
- Installation via screw terminals
Technical specifications- Type: Single/Three-Phase energy analyzer (up to 3 single-phase lines)
- Accuracy class: 0.5S
- Current input: via external CTs (5A or 1A, not included)
- Measured parameters: THD, TDD, voltage, current, neutral current, active energy per phase, max/min voltage, max current, max power
- Phase functions: phase sequence detection and configurable phase settings
- Timers & alarms: 4 operating timers; 8 configurable alarms with complex logic support
- LED indicators: energy calibration LED, status LED, RS485 communication LED
- Communication: Modbus-RTU over RS485
- Firmware: remotely upgradeable and expandable via PUK codes
- Mounting: DIN-rail; 4 modules width
- Installation: screw terminals
- Power supply: 230–240 VAC
- Standards: EN 50470-1, EN 50470-3