DTSD545/DSSD535 static three-phase multi-function watt-hour meter is designed
for measuring active and reactive energy by connecting to industrial power supply system, which has firm structure, good appearance and wide practicability. It has high reliability for the adoption of large-scale integration and SMT technology.

The key components are long-life ones with famous international brand. The meter complies with the technical standard of IEC62053-21 and communication protocol IEC 62056-21, Mode C.

Features:
1) Applicable standard: IEC 62053-21, IEC 62056-21
2) Working temperature range: -30 ~ +65° C
3) Working voltage range: 0.8Un to 1.15Un
4) Accuracy class: Class 1, Class 2
5) Power loss: ¡Ü1.5W or 5VA
6) Starting current: ¡Ü0.002Ib (transformer connected), ¡Ü0.004Ib (direct connected)
7) Accuracy of clock: ¡Ü0.5s each day
8) Data memory in case of power failure: ¡Ü10 years
9) Service lifetime: 10 years
10) Outline dimensions (mm): 295 x 171 x 77.7
11) Installation dimension (mm): 231 x 150

Basic functions:
1) 4-tariff, 2 time zones, 8 period time-of -day
2) Measuring bi-directional active energy and four quadrant reactive energy with time-of-use
3) Measuring the maximum demand
4) Phase lose monitor and recording
5) Load profile record
6) Display cyclically or by push button
7) Passive pulse output (optical coupling isolated)
8) Record total and tariff energy value of 12 months
9) Infrared interface and RS-485 interface
10) LCD display during power off

Specifications:
1) DTSD545: 3 x 57.7/100V; 3 x 1.5(6)A
2) DTSD545: 3 x 220/380V; 3 x 1.5(6)A, 3 x 2.5(10)A, 3 x 5(20)A, 3 x 10(40)A, 3 x 15(60)A, 3 x 20(80)A, 3 x 30(100)A

Note: we can design special meters upon requests.