Item
Master Unit Slave Unit
KM1-PMU2A-FLK
(Dual Power Systems)
KM1-PMU1A-FLK
(Single Power System)
KM1-EMU8A-FLK
(Pulses/Temperatures)
KE1-CTD8E
(CT Extension Unit)
Applicable phase wiring method
Single-phase two-wire, single-phase three-
wire, and three-phase three-wire
Single-phase two-wire, single-phase three-wire,
three-phase three-wire, and three-phase four-wire
-
Single-phase two-wire, single-phase three-wire,
three-phase three-wire, and three-phase four-wire
Maximum number of CT connections 4 3 -8
Selectable types of CT capacities 2 types 1 type -Two types per Slave Unit
Power
supply
Rated power supply voltage 100 to 240 VAC, 50/60 Hz -
Allowable supply voltage range
85% to 110% of rated power supply voltage -
Power supply allowable frequency range
45 to 65 Hz -
Power consumption Standalone: 10 VA max., Maximum expansion: 14 VA max. 10 VA max. -
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
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 (CT) (5, 50, 100, 200, 400, or 600 A) -(5, 50, 100, 200, 400, or 600 A)
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
-
Rated input frequency 50/60 Hz -
Allowable input frequency range
45 to 65 Hz -
Allowable input voltage 110% of rated input voltage (continuous) -
Allowable input current 120% of rated input current (continuous) -
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)
-
Current input: 0.5 VA max.
(for each input)
Clock
Clock setting 2012 to 2099 (Adjusted for leap years during this period.) -
Clock accuracy ±1.5 min./month (at 23° C) -
Clock backup period
Seven-day backup with an electric double-layer capacitor (after being powered for at least 24 hours and when at 23° C when the power is turned OFF)
-
Ambient operating temperature −10 to 55°C (with no condensation or icing)
Storage humidity −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 II, pollution degree 2, measurement category II
Compliant standards EN/IEC 61010-2-030 and EN/IEC 31626-1
Item
Master Unit Slave Unit
KM1-PMU2A-FLK
(Dual Power Systems)
KM1-PMU1A-FLK
(Single Power System)
KM1-EMU8A-FLK
(Pulses/Temperatures) KE1-CTD8E (CT Extension Unit)
Accuracy*1
Voltage ±1.0% FS, ±1 digit; or, ±2.0% FS, ±1 digit for voltage across Vtr under
the same conditions
-
Current
±1.0% FS, ±1 digit
However, the accuracy is ±2.0% FS, ±1 digit for the phase-S current for
a three-phase, three-wire circuit and the phase-N current for a single-
phase, three-wire circuit under the same conditions.
-
±1.0% FS, ±1 digit
However, the accuracy is ±2.0% FS, ±1 digit for
the phase-S current for a three-phase, three-wire
circuit and the phase-N current for a single-phase,
three-wire circuit under the same conditions.
Power (active power
and reactive power)
Active power and reactive power
±2.0% FS, ±1 digit (Power factor = 1)
-
Active power and reactive power
±2.0% FS, ±1 digit (Power factor = 1)
Frequency ±0.3 Hz ±1 digit -
Power factor*2 ±5.0% FS at an ambient temperature of 23° C, rated input, rated
frequency, and a power factor of 0.5 to 1 to 0.5
-
±5.0% FS at an ambient temperature
of 23° C, rated input, rated frequency,
and a power factor of 0.5 to 1 to 0.5
Temperature -
±5°C two hours after the power supply
is turned ON (after performing any
adjustments for the ambient temperature)
-
Temperature influence
±1.0% FS (percentage of the measurement value at an ambient
temperature of 23° C, rated input, rated frequency, and a power factor of
1 in the operating temperature range)
±1.0% FS (percentage of the
measurement value at an ambient
temperature of 23° C in the operating
temperature range)
±1.0% FS (percentage of the measurement
value at an ambient temperature of 23° C,
rated input, rated frequency, and a power
factor of 1 in the operating temperature range)
Influence of frequency
±1.0% FS (percentage of the measurement value at an ambient
temperature of 23° C, rated input, rated frequency, and a power factor of
1 in the rated frequency ±5 Hz range)
-
±1.0% FS (percentage of the measurement
value at an ambient temperature of 23° C, rated
input, rated frequency, and a power factor of 1 in
the rated frequency ±5 Hz range)
Influence of harmonics
±0.5% FS (at ambient temperature of 23°C, error for superimposed 2nd,
3rd, 5th, 7th, 9th, 11th, and 13th harmonics for a content percentage of
30% for current and 5% for voltage of the basic wave)
-
±0.5% FS (at ambient temperature of 23°C,
error for superimposed 2nd, 3rd, 5th, 7th,
9th, 11th, and 13th harmonics for a content
percentage of 30% for current and 5% for
voltage of the basic wave)
Model
Model
Ratings
Performance
12