OMRON KM50-E Smart Power Monitor

Applicable circuit

Single-phase two-wire, single-phase three-wire, three-phase three-wire, and
three-phase four-wire power

Rated power supply voltage

100 to 240 VAC, 50/60 Hz

Allowable supply voltage range

85% to 110% of rated power supply voltage

Allowable frequency range

45 to 65 Hz

Power consumption

7 VA max.

Rated
input

Rated input voltage

100 to 480 VAC (single-phase, 2-wire): Line voltage
100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage
100 to 480 VAC (3-phase, 3-wire): Line voltage
58 to 277 VAC (3-phase, 4-wire): Phase voltage

Rated input current

5 A, 50 A, 100 A, 200 A, 400 A, or 600 A (primary current of Special CT) *

Rated frequency

50/60 Hz

Rated input power

With 5-A CT: 4 kW
With 50-A CT: 40 kW
With 100-A CT: 80 kW
With 200-A CT: 160 kW
With 400-A CT: 320 kW
With 600-A CT: 480 kW

Allowable input voltage

110% of rated input voltage (continuous)

Allowable input current

120% of rated input current (continuous)

Rated input load

Voltage input: 0.5 VA max. (excluding power supply)
Current input: 0.5 VA max. (for each input)

Time

2010 to 2099 (Adjusted for leap year.)
Accuracy: ± 1.5 min/month (at 23 °C)

Time backup period

7 days (without power supply, at 23 °C)

Ambient operating temperature

-10 to +55 °C (with no condensation or icing)

Storage temperature

-25 to +65 °C (with no condensation or icing)

Ambient operating humidity

25% to 85%

Storage humidity

25% to 85%

Altitude

2,000 m max.

Installation environment

Overvoltage category and measurement category: 2, Pollution level: 2