OMRON KM50-C ​Smart power monitor

Applicable circuit

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

Rated power supply voltage

100 to 240 VAC, 50/60 Hz 
The power supply voltage and measurement voltage input are shared (terminals 6 and 7).

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 240 VAC (single-phase, 2-wire): Line voltage 
100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage 
100 to 240 VAC (3-phase, 3-wire): Line 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: 2 kW 
With 50-A CT: 20 kW 
With 100-A CT: 40 kW 
With 200-A CT: 80 kW 
With 400-A CT: 160 kW 
With 600-A CT: 240 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

3 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