Product Overview
The DDS3366D-J is engineered to track energy consumption in single-phase AC circuits. Key attributes from the Alibaba listing:
-
Accuracy class: 1%
-
Measuring energy range: 0 – 999,999.9 kWh
-
Supported current ranges: 5(40)A and 10(60)A
-
Dimensions: 104.0 × 36.0 × 70.0 mm
-
Operating temperature: –10 °C to +50 °C
-
Output voltage (auxiliary): 220 V
-
Communication: RS-485 (Modbus RTU / DL/T645-2007)
-
Installation: DIN-rail 35 mm
-
Feature: Safety, lightweight, time display function
It is ideal for metering and monitoring in single-phase circuits such as residential loads, sub-metering, AC charging piles, and industrial panels.
| Product Name | YADA DDS3366D-J AC Energy Meter | |||
| Meter Type | Single Phase AC Energy Meter | |||
| Model No. | DDS3366D-J | |||
| Brand Name | YADA | |||
| Display Type | LCD Display | |||
| Measuring Energy Range | 0-99999.99kWh | |||
| Accuracy Class | Class 0.5/1 | |||
| Operating Temperature | -10℃~ +50℃ | |||
| Relative Humidity | <75% (annual average) | |||
| Communication | RS485 communication interfaces, | |||
| ModBus-RTU and DL/T645-2007 Protocol. | ||||
| Installation | 35mm DIN rail | |||
| Rated current | 5(40)A, 10(60)A | |||
| Rated Voltage | AC220V/380V | |||
| Pulse Constant | 1600imp/kWh、800imp/kWh | |||
| Frequency Range | 45Hz~60Hz | |||
| Warranty | 2 Years | |||
| Dimensions & Weight | 104.0mm*36mm*70.0mm, 0.15kg | |||
| Appication | AC EV Charging Pile | |||
Main Function

Key Features & Benefits
-
Single-Phase Measurement — Designed for 230 V single-phase AC circuits
-
Accurate & Reliable — 1% accuracy class ensures dependable readings
-
Multiple Current Options — 5(40)A and 10(60)A models for flexible deployment
-
Large Energy Range — Up to 999,999.9 kWh cumulative display
-
RS-485 Communications — Supports Modbus RTU / DL/T645 for integration into BMS/EMS systems
-
DIN-Rail Mounting — 35 mm standard rail fits most electric distribution panels
-
Compact & Lightweight — Slim profile makes installation easy even in dense switchgear
-
Digital LCD Display — Real-time parameter visibility including time display
-
Durable Design — Built for stable operation from –10 °C to +50 °C
-
Ideal for Sub-metering & EV Use — Suitable for AC charging and load monitoring scenarios
Applications
The DDS3366D-J is well suited for:
-
Single-phase load monitoring (residential, small commercial)
-
AC charging stations / piles requiring meter integration
-
Sub-metering in electrical panels
-
Energy management systems for low-voltage circuits
-
Remote monitoring in IoT / smart building setups
-
Retrofit into existing single-phase installations
Why Choose YADA DDS3366D-J?
-
Proven Accuracy — 1% accuracy for reliable billing / billing-equivalent applications
-
Communication-Ready — RS-485 Modbus RTU / DL/T645 ensures system interoperability
-
Flexible Current Ranges — Two models available for different load levels
-
Compact & Panel-Friendly — Slim design, ideal for tight installations
-
DIN-Rail Compatibility — Easy to mount within standard distribution enclosures
-
User-Friendly Display — LCD readout including time/date helps on-site checks
-
Built to Last — Stable within –10 °C to +50 °C, safe and lightweight design
-
Suitable for Sub-Metering & EV Integration — Great for systems requiring per-load measurement
Dimension & Installation

FAQ
Q: What does “5(40)A / 10(60)A” mean?
A: It indicates the nominal current and the extended current capability (for example, 5A nominal with capacity up to 40A).
Q: What is the communication protocol?
A: It supports RS-485 with Modbus RTU and DL/T645-2007 protocol.
Q: What is the accuracy class?
A: It is class 1 (1 %) per supplier listing.
Q: What is the working temperature range?
A: –10 °C to +50 °C.
Q: What is the mounting method?
A: DIN-rail (35 mm) mounting suitable for standard electrical distribution panels.





