DDS28 series single-phase

Static Watt-hour Meters
DDS28 series single-phase electronic watt-hour meters adopt LSI and SMT technology. The key components are long-life international-brand products. The meters feature firm construction, good performance, calibration-free, long-term reliability, high overloading capability, and low power loss.

Basic function
Energy display by register or LCD
Bi-directional active energy measurement
Pulse LED indicates working of meter
Pluse output with optical coupling isolation

Optional function
Reverse current indicator
HF magnetic immunity and unidirectional register
Optical and RS485 communication
External tariff change-over
Backup battery for LCD display at power failure
Technical Date
Applicable standard IEC 62053-21
Accuracy class Class 1
Working temperature -30 ~+65
Working voltage range 0.7~1.2Un
Power loss Less than 0.7W or 6VA
Outline dimension LMH BS meter case: 16412458mm
DIN meter case: 22412460mm
Installation dimension LM BS meter case: 140106mm
DIN meter case: 155105mm
Weight Approx.0.6kg

Rated voltage(V) 110V, 120V, 220V, 230V, 240V
Reference frequency 50Hz or 60Hz
Basic current
(Maximum current)A
1.5(6) 5(20) 10(40) 20(80)
2.5(10) 5(30) 10(60) 20(100)
Other customized specifications