Technical Specifications​

Front size 72 × 72 mm. Panel cut-out approximately 68 × 68 mm. Auxiliary supply typically 24 VDC or 85–264 VAC depending on variant. Voltage inputs via VT/PT, current inputs via 5 A CT. Communication RS-485 Modbus RTU on communication/pulse variants. Operating temperature typically -10 to +55 °C.

Functional Features​

Measures voltage, current, active power, and related electrical quantities. Digital display for fast reading. CT/VT ratio configuration. Pulse or alarm output on selected variants. Modbus communication for SCADA or BMS integration.

Application Scenarios​

Genset control panels. Marine and offshore switchboards. Industrial motor control centers. Commercial building distribution boards. Retrofit projects replacing analog 72 mm meters.

Performance Parameters​

Suitable for low-voltage and medium-voltage metering through external CT/VT. RS-485 Modbus RTU for polling by PLC, SCADA, or energy management system. Compact depth for dense panels.

Material And Structure​

Plastic or industrial-grade front bezel. Rear terminal block. Internal measurement and communication electronics. Panel-mounted body with clamp/fastener fixing.

Working Principle​

Voltage and current signals are scaled through VT/CT inputs, converted and processed internally, then displayed on the front panel. Data can be transmitted over RS-485 Modbus RTU to upper systems. Pulse or relay output can be used for energy pulsing or limit alarm.

Installation Requirements​

Install in clean, dry switchboard with adequate ventilation. Use standard 68 × 68 mm cut-out. Maintain CT polarity. Short CT secondaries during installation if required. Use shielded twisted pair for RS-485 with proper grounding and termination.

Usage Precautions​

Verify auxiliary supply before powering. Do not open live terminals. Check CT wiring to avoid open-circuit danger. Confirm Modbus baud rate, parity, and slave ID before communication. Calibrate CT/PT ratio in software before commissioning.