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The DDS238-4-R is a precise single-phase three-wire energy meter engineered for accurate power consumption measurement in 110V/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.
Electrical ParametersPhase System: Single Phase Three Wire (FM2S)
Voltage: L1-L2 = 220V, L1-N/L2-N = 110V
Rated Voltage: AC 110/220V (0.8 - 1.2UN), Frequency: 60HZ ± 10%
Rated Current: 10(100)A, Maximum Current: 100A
Starting Current: 0.04Ib*10 = 40mA
Functional ParametersAccuracy Class: 1.0
Pulse Output: 800imp/kWh
Output Type: Passive Pulse, Pulse Width: 80 ± 5ms
Power Consumption: Pulse Output
Performance IndicatorsOperating Temperature: -25°C - 70°C
AC Withstand Voltage: 4000V/25mA for 60s
Overcurrent Tolerance: 30lmax for 0.01s
Structure and DisplayMounting 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 ContentsIncludes 1 single - phase three - wire energy meter
Installation Notes:Designed for three-wire (L1, L2, N) systems only
Neutral line does not pass through the meter
Not suitable for two-wire (L-N) configurations
CT (Current Transformer) models may be available for higher current ranges.
Standard Connection (Without CT): Recommended continuous load 10A, 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.
Professional installation recommended
For optimal performance and safety, we recommend installation by a qualified electrician professional installation.