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Meter Description
which is not delivered with this product. This document provides only recommended models and basic information. For
details, see the meter manual.
When installing the meter, ensure that the current transformer or voltage cable is correctly installed. Otherwise, the
charger may charge at the maximum power, possibly causing the general circuit breaker to trip.
Type C or type D circuit breakers are recommended for the general circuit breaker. Ensure that the rated current of the
general circuit breaker is larger than the highest total current of all loads.
Under the maximum home load and maximum charger power, the current must be less than or equal to 150% of the
rated current of the general circuit breaker.
If there is already an FE meter in the networking, you are advised to install the DTSU666-FE by referring to Figure 1.
DescriptionComponent
DTSU666-FE
The DTSU666-FE three-phase four-wire electricity meter has one
Ethernet port. It supports the Modbus-TCP protocol.
It is recommended that the meter be installed at the utility entry of the home.
Meter version: V322 or later
Prepared By
Customer
RFID
WiFi
FE
FE
Router
Electricity meter
Cloud platform
Home loads Charger
Power grid
Power cable
Communications cable
WiFi/Bluetooth
AC distribution box
Figure1: Charger connected to the meter through the FE port and then connected to the cloud platform through WiFi
Recommended meter
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