the DEM-4MC three-phase rail-mounted energy meter is an ideal choice for residential billing, room rental billing, and industrial applications. with a width of 4 modules and a default 100mA/333mV CT, it can use external current transformers to extend the current measurement range up to 999A. In addition to basic voltage, current, frequency and other basic energy measurement functions, the DEM-4MC can optionally measure advanced parameters such as demand record and voltage and current imbalance detection.

the DEM-4MC features CATIII-300V voltage rating and and withstand voltage of 2kV, ensuring safety and reliability in complex electrical environments. the DEM-4MC provides real-time voltage and current readings through an LCD screen and supports RS485-RTU and pulse output ports. It can be expanded with multiple DI/DO ports, offering users a comprehensive energy management solution. Compliant with international standards IEC61557 and IEC62053, the DEM-4MC is suitable for the diverse needs of residential, public facility, and industrial scenarios.


Specification

PArameter	Value
Auxiliary power	85-265Vac/DC
Voltage measurement	Rated 110V, 380V RMS value, Accuracy 0.2s,
Current measurement	Rated 5A, optional 1A, CT connection
Frequency	50/60Hz, Accuracy ±0.01Hz
Display	LCD with white backlit
Maximum display value	9,999MWh
Curr& volt accuracy	0.5%, (IEC 61557-12)
Active energy accuracy	Class 1.0, (IEC 62053-22)
Reactive energy accuracy	Class 2.0, (IEC 62053-23)
Pulse constant	1 channel, 5000imp/kWh
I/O module	2DO, 2DI optional
Communication	RS-485 MODBUS-RTU
Withstand voltage	2.5KV 1min
Insulation	Input, output, power supply to shell >5MΩ
Storage environment	-40~70°C
Working environment	-25~55°C Altitude ≤2500m, 0~95%RH, non-condensing, non-corrosive gas