The DDSU666-H single-phase energy meter from Huawei is used in conjunction with Huawei single-phase inverters to measure exported or purchased energy, control household consumption, or perform zero feed-in to the grid. If purchased alone, it can only monitor the inverter's production.
Energy measurement is done indirectly using the included clamp ammeter, which, unlike direct measurement, does not require dismantling the wiring after the main cutoff switch for connection.
The energy meter is only sold with its corresponding inverter.
Includes
-1 100A/40A clamp ammeter 6m
-10m shielded cable for RS485 connection
THIS PRODUCT MUST BE PURCHASED TOGETHER WITH ITS CORRESPONDING INVERTER
For the installation of the Smart Power Sensor, you will need to wire from the inverter to the meter using the included shielded cable. If the length exceeds 10m, you should use shielded cable of 2x1.5mm2 to make the connection. This cable can reach up to 1200m without losing signal. The meter will be powered in the same connection box as the phase and neutral. Next, connect the ammeter clamp, which includes 6m of length and can measure up to 100A, equivalent to 22kW. It is not recommended to extend the wiring of the clamp. Place the clamp before the main cutoff switch so it can read the total consumption.
Technical specifications of the Single-phase Huawei Smart Power Sensor with indirect measurement model DDSU666-H
Dimension (HxWxD) 100 x 36 x 65.5mm
Mounting Type DIN35 Rail
Weight 1.2 kg
Power grid type 1P2W
Input power (phase voltage) 176 Vac ~ 288 Vac
Self-consumption ≤ 0.8 W
Current measurement 0-100 A
Voltage (measured accuracy) +/- 0.5%
Current (measured accuracy) +/- 1%
Frequency +/- 0.01Hz
Communication interface RS485
Communication protocol Modbus RTU
Operating temperature -25ºC/60ºC
Storage temperature -40ºC/70ºC
Humidity 5%HR/95%HR
LCD Display Yes
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