Specifications and Parameters:
1. Accuracy class: 1.0, 2.0
2. Rated frequency: 50 Hz
3. Rated voltage: 220V
4. Basic Current: 2.5 (10)A; 5 (40)A; 10 (40)A; 15(60)A; 20 (80)A
5. Starting Current: 0.4% Ib (class 1), 0.5% Ib (class 2)
6. Anti-creeping logical circuit
7. Outshape size: 165mm*124mm*64mm
8. Weight: 0.7Kg
9. Power consumption:
    voltage circuit≤1W,
    current circuit≤1VA
10. Ambient conditions:
     Standard temperature:-20^oC - 55^oC
     Ultimate temperature: -25±70
     Storage and transportation temperature: -40±70
     Relative humidity≤90%

 Functions and Features:

1. Long-term bi-directional active energy measurement without any calibration.
2. Remote reading via LV (low voltage) electrical wire for real time electric quantity
3. Characteristics of long life and high reliability exist in every electronic component
4. HHU (hand held unit) is allowed to finish programming and meter-reading via infrared ray or 485 port;
5. The same effect is also manually available through infrared remote control
6. LED display with wide temperature scope, electric quantity and basic information can be displayed in turn
7. Energy data can be stored and forwarded on automatic reading day/time set up discretionally: store
8. consumption data for last 3 months, zero hour freeze for last 7 days and hourly freeze for last 1 day,
9. memory period after power failure:≥10 years
10. Build-in magnetism-reserved relays can control the switch via infrared ray or carrier wave by
11. LV (low voltage) electrical wire (optional)
12. Energy test and 1 Hz clock output