Class A Single-Phase High-Protection Smart Electricity Meter (State Grid IP68)
A high-protection (IP68) smart electricity meter integrating metering, prepayment, alarm, display, freeze, and communication functions.
Product Description
The DDZY208-M Class A single-phase prepayment smart electricity meter (IP68) uses advanced energy metering chips, a built-in temperature-compensated hardware clock, and an ESAM security encryption chip. Manufactured with advanced microelectronics technology and SMT production processes, it integrates metering, prepayment, alarm, display, freeze, and communication functions, enabling energy metering and information storage for residential users requiring special protection levels. It features high accuracy, strong functionality, and excellent stability, with optional carrier communication and micro-power wireless communication modules. Its communication protocol complies with the DL/T698.45 standard.

Product Advantages
Metering Functions
Forward/reverse active energy metering with configurable active energy combination mode; time-of-use metering and step metering.

Freeze function
Daily freeze, hourly freeze, scheduled freeze, instantaneous freeze, preset freeze, and minute freeze.

Measurement and monitoring function
Measures operating parameters such as voltage, current, power, power factor, and neutral line current.

Event recording function
Records time synchronization, programming, power failure, meter reset, cover opening, and switch on/off operations.

Display Functions
Features a large-screen LCD with Chinese characters and backlight. Display content can be toggled via buttons, and display items are flexibly configurable.

Fault indication function
Indicates faults through relevant symbols or characters on the LCD.

Remote demand control function
The meter receives remote commands such as breaker open, close, and power hold from the master station via communication, enabling effective demand control with secure authentication and encryption.

Communication Functions
Equipped with RS485 communication (1 channel), infrared communication (1 channel), and carrier communication (optional).

Tariff
Multi-tariff metering, two sets of tariff time zones, and time-of-use functions.

Class A Single-Phase High-Protection Smart Electricity Meter (State Grid IP68)
DDZY208-M-IP68
DDZY208-M-IP68
| Standards: General Technical Specification for High-Protection Smart Electricity Meters (2020 Edition), DL/T698.45 |
| Reference Voltage: 220V |
| Current Specifications: 0.25-0.5(60)A, 0.5-1(100)A |
| Accuracy Class: Active Energy Class A |
| Frequency Range: 50Hz |
| Operating Voltage Range: 0.8Unom~1.15Unom |
| Operating Temperature Range: -40℃~+70℃ |
| MTTF: ≥16 years |
| Outline Dimensions: Length × Width × Height = 160mm × 112mm × 71mm |



