Single Phase Digital Energy Meter Features
- Direct connection for currents up to 40A
- RS485 communication interface, support Modbus-RTU protocol
- LCD display type and with 6 display digits
- 35mm DIN-rail mounting, very easy to install
- 1 active energy pulse output
- Low power consumption
Digital Energy Meter Description
||Grade-1 accuracy for active energy
||Single phase (2 wire)
|Number of Poles
|Current Direct Input
||1 loop active energy pulse output, pulse width (80±20%) ms
||Voltage/Current/Active power/Power factor/Frequency
||RS485, Modbus-RTU protocol, 2 wire, up to 9600bps
||IP54 (panel) /IP20 (case)
||CE/ ISO/ MID
||Din rail 35mm
Digital Energy Meter Dimension and Wiring
Tips: What are the means of (40)A of energy meter 5(40)A?
(40)A on the energy meter refers to the maximum rated current of the energy meter. The energy meter is different from other devices. Its rated current is seriously affected by the environment factors. Therefore, in delivery, a certain margin will be reserved-the practical maximum rated current is 120% of the marked current.
Therefore, if the number in the brackets is 40, its maximum rated current is 48A. If the environment is not too bad, the influence to the maximum rated current will not be up to 20% in normal conditions. Therefore, the energy meter marked 40A has the maximum rated current of about 44A in practical operation.
What will happen if it exceeds the value? The answer is the inaccurate measurement. The measured value might be higher or lower.