Electrical network analyzer PRA74-EH102-E00 ATTO PRO D4 ECT PLUG

electric3-phase electrical networksfor single-phase electrical networks

Product overview
Single- and three-phase energy analyzer (up to 3 single-phase lines) with accuracy class 0.5S. Designed for use with external ECT current transformers (not included). Measures voltage and current parameters including THD and TDD, neutral current, maximum and minimum voltage, maximum current and power, and active energy per phase. Performs real-time single harmonic analysis up to the 31st order on three phase voltages and three line currents. Includes phase sequence detection, four operating timers and eight configurable alarms with support for complex logic. LEDs indicate energy calibration, status and RS485 communication. Communication via Modbus-RTU over RS485. Firmware remotely upgradeable and expandable via PUK codes. DIN-rail mounting, 4 modules; screw terminal connections. Power supply 230-240 VAC. Compliant with EN 50470-1 and EN 50470-3.

Features

• Single- and three-phase measurements (up to 3 single-phase lines)
• Accuracy class 0.5S
• Supports external ECT current transformers (not included)
• Measures THD and TDD on voltage and current
• Neutral current measurement
• Max/min voltage, max current and max power monitoring
• Active energy measurement per phase
• Single harmonic analysis up to 31st order in real time
• Phase sequence detection and configuration
• Four operating timers
• Eight configurable alarms with complex logic support
• LED indicators: energy calibration, status, RS485 communication
• Modbus-RTU over RS485 communication
• Remote firmware upgrade and expansion via PUK codes
• DIN-rail mounting (4 modules) and screw terminal connections
• Power supply 230-240 VAC

Technical specifications

• Model family: ATTO PRO D4
• Product code: PRA74-EH102-E00
• Supported configurations: Single-phase and three-phase (up to 3 single-phase lines)
• Accuracy: Class 0.5S
• Current transformers: External ECT required (example compatible CT for 100 A: model code PFAE000-09)
• Harmonics: Single harmonic analysis up to 31st order for three phase voltages and three line currents (real time)
• Power quality measures: THD and TDD on voltage and current
• Additional measurements: Neutral current, max/min voltage, max current, max power, active energy per phase
• Timers: 4 operating timers
• Alarms: 8 configurable alarms with support for complex logic
• LED indicators: calibration (energy), status, RS485 communication
• Communication protocol: Modbus-RTU over RS485
• Firmware: Remotely upgradeable; expandable via PUK codes
• Mounting: DIN-rail, 4 modules
• Connections: Screw terminal installation
• Power supply: 230-240 VAC
• Standards: EN 50470-1, EN 50470-3