Specifications

® 2011 - 5 - User manual 0025
1.4 Performance criteria:
Operating humidity ≤ 75%
Storage humidity ≤ 95%
Operating temperature -25°C - +55°C
Storage temperature -30°C - +70°C
International standard EN50470-3
Accuracy class 1
Protection against penetration
of dust and water IP51
Insulating encased meter
protective class Ⅱ
1.5 Specifications:
Meter type PRO-1250D 100A
Nominal voltage (Un) 230/400V AC (3~)
Operational voltage 0.7～1.3Un
Insulation capabilities:
- AC voltage withstand 2KV for 1 minute
- Impulse voltage withstand 6KV – 1.2µS waveform
Basic current (Ib) 10A
Maximum rated current (Imax) 100A
Operational current range 0.4% Ib- Imax
Peak current withstand 30Imax for 0.01s
Operational frequency range 50Hz ±10%
Internal power consumption ≤2W / 10VA per phase
Test output flash rate (PULSE LED) 400imp/kWh
Pulse output rate (pins 8 & 9) 400imp/kWh
L1, L2 & L3 LED indicator Meter is connected to power
Consumption indicator (RED LED) Flashing at load running
Data save The data can be stored more than 20 years
without power.
1.6 Basic errors:
With balanced loads
0.05Ib Cosφ = 1 ±1.5%
0.1Ib Cosφ = 0.5L ±1.5%
Cosφ = 0.8C ±1.5%
0.1Ib - Imax Cosφ = 1 ±1.0%
0.2Ib - Imax Cosφ = 0.5L ±1.0%
Cosφ = 0.8C ±1.0%
With single phase load
0.1Ib - Imax Cosφ = 1 ±2.0%
0.2Ib - Imax Cosφ = 0.5L ±2.0%