Power Monitor NR-PM01

Model

NR-PM01

Performance Specifications

Measurement specifications

Phase wire system

1-phase 2-wire, 1-phase 3-wire, 3-phase 3-wire, 3-phase 4-wire (switchable)

No. of measurement circuits

1

Primary side rated current (In)

With dedicated NR-CT250 CT: 250 A
With dedicated NR-CT600 CT: 600 A
With dedicated NR-CT050 CT: 50 A
With dedicated NR-CT100 CT: 100 A
or general-purpose CT (secondary side rated input current 1 A)^*1

Overcurrent withstand capability

1.2 times the primary side rated current (can be continuous), 10 times the primary side rated current (1 sec or less)

Rated input voltage (direct input)

1-phase 2-wire

With dedicated NR-CT250/CT600 CT: 100–277 V AC (L-N)
With dedicated NR-CT050/CT100 CT: 100–240 V AC (L-N)

1-phase 3-wire

100–240 V AC (L-N), 200–480 V AC (L-L)

3-phase 3-wire

With dedicated NR-CT250/CT600 CT: 173–480 V AC (L-L)
With dedicated NR-CT050/CT100 CT: 173–240 V AC (L-L)

3-phase 4-wire

With dedicated NR-CT250/CT600 CT: 100–277 V AC (L-N), 173–480 V AC (L-L)
With dedicated NR-CT050/CT100 CT: 100–240 V AC (L-N), 173–415 V AC (L-L)

Maximum allowable earth voltage

With dedicated NR-CT250/CT600 CT: 480 V AC
With dedicated NR-CT050/CT100 CT: 240 V AC

Input voltage fluctuation range

−15% to +15% of rated input voltage

Rated input frequency

50/60 Hz

Measurement range

Voltage

Measurable range: Within rated input voltage
Display resolution: 0.1 V

Current

Measurable range: Within primary side rated current
Display resolution: 0.001 A

Active energy/Reactive energy/Apparent energy (Instantaneous)

Measurable range: -8942.400 to +8942.400 [kW/kvar/kVA]
Display resolution: 0.001 [kW/kvar/kVA]

Active energy/Reactive energy/Apparent energy (Integrated)

Measurable range: 0.000 to 999999.999 [kWh/kvarh/kVah]
Display resolution: 0.001 [kWh/kvarh/kVAh]

Power factor (PF)

Measurable range: -1.00–1.00
Display resolution: 0.01

Frequency

Measurable range: 0.0 to 90.0 Hz
Display resolution: 0.1 Hz

Measurement accuracy

Voltage

±0.5% of rdg (within rated input voltage)^*2

Current

With dedicated NR-CT250/CT600 CT: ± 0.5% of rdg (5% ≤ In ≤ 120%) and ± 1.0% of rdg (1% ≤ In ≤ 5%)
With dedicated NR-CT050/CT100 CT: ±0.5% of F.S.
^*2

Active energy (power factor of 1)

±1.0% of rdg (1% ≤ In ≤ 120%)^*2

Reactive energy (reactive power factor of 1)

±2.0% of rdg (5% ≤ In ≤ 120%)^*2

Apparent energy

With dedicated NR-CT250/CT600 CT: ±1.0% of rdg (1% ≤ In ≤ 120%)^*3
With dedicated NR-CT050/CT100 CT: ±1.0% of rdg (5% ≤ In ≤ 120%)^*3
*2

Effects of ambient temperature

±0.03% of rdg/°C^*4*2

Power factor (PF)

±0.01^*2

Frequency

±0.1 [Hz]^*2

General specifications

Power voltage

—(Powered by NR-PMC10)

Operating ambient temperature

0 to 55°C 32°F to 131°F (no freezing)

Operating ambient humidity

Max. 85% RH (no condensation)

Withstand voltage

2500 V AC/minute
• Between all terminals and case
• Between voltage measurement terminal and expansion port
• Between CT input terminal and expansion port
* With dedicated CT

Insulation resistance

20 MΩ or more at 500 V DC
• Between all terminals and case
• Between voltage measurement terminal, all CT input terminals and expansion port

Vibration

Frequency: 10 to 500 Hz; Power spectral density: 0.033 G²/Hz for X, Y and Z directions

Material

Polycarbonate

Current consumption

36 mA or less

Weight

Approx. 110 g 3.88 oz