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LEM022SJ 2015 V01
1.3 Performance criteria:
Operating humidity ≤ 75%
Storage humidity ≤ 95%
Specified operating temperature -10°C - +40°C (3K5)
Limit operating temperature
-25°C - +55°C (3K6)
Storage temperature -40°C - +70°C (1K5)
International standard
IEC 62053-21
Accuracy class
Class 1
Protection against penetration
of dust and water IP51
Insulating encased meter of
protective class
Ⅱ
1.4 Specifications:
Reference voltage (Un)
230/400V AC (3~)
Operational voltage
161/279 – 300/520V AC (3~)
Insulation capabilities:
- AC voltage withstand 2KV for 1 minute
- Impulse voltage withstand 6KV – 1.2µS waveform
Minimum current (Imin)
0.25 A
Transitional current (Itr)
0.5 A
Reference current (Iref)
5 A
Maximum current (Imax)
80 A
Operational current range
0.25A - 80A
Over current withstand
3000A for 0.01s
Operational frequency range
50Hz ±10%
Internal power consumption
≤2W / 10VA per phase
Test output flash rate (PULSE LED)
400 pulses per kWh (2.5Wh/imp)
Pulse output rate (pins 26 & 27) 400 pulses per kWh (2.5Wh/imp)
Pulse supply current
Ui max=27V / Ii max 27mA
Power supply indicator (L1, L2 &
L3 LED) Meter is connected and working OK.
Consumption indicator (PULSE LED) Flashing at load running
Reverse indication (REV. LED) lighten when load current flow is reverse.
Data display mode 7+1 digits for LCD display
Data save The data can be stored more than 20 years
when power cut.
1.5 Intrinsic errors:
With balanced loads
Imin ≤ I < Itr
Cosφ = 1
±1.5%
Itr ≤ I ≤ Imax Cosφ = 1
±1.0%
Cosφ = 0.5L
±1.0%
Cosφ = 0.8C
±1.0%
With single phase load
Itr ≤ I ≤ Imax Cosφ = 1
±2.0%
Cosφ = 0.5L
±2.0%