Accurate Single-Phase Energy Meter – Class 1.0 accuracy kWh meter designed for precise power consumption measurement in 220V split-phase systems, Ideal for residential and light commercial use Wide Compatibility & High Capacity – Supports 20(100)A current range (max 100A) and operates at 60Hz ±10%. Features a starting current of 40mA for sensitive load detection Clear LCD Display & Pulse Output – adopted micro-electronic techniques LCD dispiay, with 6+1-digit display (up to 999,999.9 kWh). Includes passive pulse output (800imp/kWh) for easy energy monitoring Durable & Easy Installation – DIN rail-mounted (35mm) design with flame-retardant PC housing. Rated for -25°C to 70°C environments and meets AC withstand voltage of 4000V/25mA Robust Electrical Protection - Built with 2KV AC insulation resistance and 6KV impulse voltage protection for safe, long-lasting operation in electrical systems.

Baomain DDS238-4 DIN Rail Single Phase Energy Meter - 220V 50Hz 20(100)A - Class 1.0 Accuracy kWh Meter with LCD Display & Pulse Output

The DDS238-4 is a precise single-phase energy meter engineered for accurate power consumption measurement in 220V split-phase electrical systems. Designed to meet Class 1.0 accuracy standards, this DIN rail-mounted meter is an ideal choice for residential and light commercial settings that require reliable energy monitoring.​
This single-phase electronic meter features a step-type impulse register and incorporates the latest micro-electronic technology LCD Display. Advanced digital sampling and surface mount technology (SMT) are employed, ensuring accurate recording of total power energy consumption.​ It has a power indicator that shows when the meter is connected and operational. The impulse indicator, a red LED, clearly displays the impulse rate, providing an easy way to monitor energy usage trends. Compatible with 110/220V AC at 60 Hz, this meter offers a practical solution for a wide range of applications.

Technical Specifications

Electrical Parameters

Phase System: Single Phase 2 wire (FM1S)

Rated Voltage: 220V (0.8 - 1.2UN), Frequency: 60HZ ± 10%

Rated Current: 20A, Maximum Current: 100A

Starting Current: 0.04Ib*10 = 40mA

Functional Parameters

Accuracy Class: 1.0

Pulse Output: 800imp/kWh

Output Type: Passive Pulse, Pulse Width: 80 ± 5ms

Power Consumption: Pulse Output

Performance Indicators

Operating Temperature: -25°C - 70°C

AC Withstand Voltage: 4000V/25mA for 60s

Overcurrent Tolerance: 30lmax for 0.01s

Structure and Display

Mounting Method: 35mm DIN Rail Mounting

Protection Level: IP20

Display Method: LCD dispiay, 6+1 - digit display, accuracy up to 0.01kWh, maximum display 999999.9 kWh

Housing Material: PC raw material, environmentally friendly and flame - retardant

Package Contents

Includes 1 single - phase energy meter

Installation Notes:

Only used under L-N 220 VAC Wire Connection

CT (Current Transformer) models may be available for higher current ranges.

Standard Connection (Without CT): Recommended continuous load ≤20A, with short-term peaks ≤100A.

High-Current Applications (Maximum Current 100A): External current transformers (CTs) must be used. The electrical meter measures high current indirectly via CTs.

Typical Applications:

Residential energy monitoring

Small business power tracking

Electrical sub-metering

Load management systems

Compliance Information:

This DIN-rail Kilowatt Hour kwh Meter is designed for AC circuits only.

It is recommended that the kilowatt meter be installed in the electric meter box.

For optimal performance and safety, we recommend installation by a qualified electrician professional installation.