Digital Power Meters

A digital power meter is an electric meter that measures the amount of electrical energy consumed by residences, businesses or electrically powered devices. These meters continuously measure the instantaneous voltage and current to give a reading of energy used. The quantity of the reading is given by a numerical display.

What are digital power meters used for?

The primary function of a digital power meter is to measure energy consumption. These meters can also record other parameters of the load and supply of energy. For example, maximum rates of usage demands, voltages, power factors and reactive factors are also measured by power meters. A further use is time-of-day billing, where the amount of energy consumed can be split into on-peak and off-peak hours.

Types of digital power meters

The choice of a digital power meter depends on the functionality you require for energy consumption measurement. This could be either management and monitoring of network power quality or level and cost of consumption. Devices can allocate energy usage for tenant metering, sub-billing and highlight energy saving time periods. Power consumption measurements can be done on three-phase or single-phase networks.


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Description Price Cutout Height Cutout Width Display Type Number of Digits Number of Phases Pulse Output Depth Digit Height Meter Accuracy Minimum Temperature Maximum Temperature Approvals Maximum Measurement Measurement Range
RS Stock No. 871-8314
BrandRS PRO
SGD238.06
Each
units
96mm 96mm LCD 4 3 Yes 55mm - 1 % -25°C +55°C EN 61000-6-1: 2007 (LVD), EN 61010-1: 2010 (EMC), UK Laboratory EN 61000-6-3: 2007 9999999.9 (Active) kWh, 9999999.9 (Reactive) kVarh 0 → 9999999.9 (Active) kWh, 0 → 9999999.9 (Reactive) kVArh
RS Stock No. 789-4149
Mfr. Part No.2CSG299883R4052
BrandABB
SGD623.19
Each
units
- - LCD - 3 Yes 77mm - ±0.5 % -5°C - - - -
RS Stock No. 841-7765
Mfr. Part No.METSEPM5100
SGD486.09
Each
units
92mm 92mm LCD - 3 Yes 90mm - ±0.5 % -25°C - - - -
RS Stock No. 797-5456
Mfr. Part No.1506600
SGD48.08
Each
units
- - LCD - 1 - - - ±1 % -10°C - - - -
RS Stock No. 833-2702
Mfr. Part No.DMG800
BrandLovato
SGD515.28
Each
units
92mm 92mm LCD - 1, 2, 3 - 61.5mm - ±0.5 % -20°C +60°C - - -
RS Stock No. 878-7455
Mfr. Part No.2CSG296992R4052
BrandABB
SGD404.21
Each
units
96mm 96mm LCD 12 - - 57mm - - -5°C +55°C CE Certified, RoHS Compliant 5 A, 500 Hz, 500 V 10 → 500 V, 40 → 500 Hz, 50 mA → 5 A
RS Stock No. 878-7452
Mfr. Part No.2CSG299943R4052
BrandABB
SGD326.26
Each
units
96mm 96mm LCD 12 - - 57mm - - -5°C +55°C CE Certified, RoHS Compliant 5 A, 500 Hz, 500 V 10 → 500 V, 40 → 500 Hz, 50 mA → 5 A
RS Stock No. 797-5453
Mfr. Part No.1506601
SGD46.72
Each
units
- - LCD - 1 - - - ±1 % -10°C - - - -
RS Stock No. 841-7768
Mfr. Part No.METSEPM5111
SGD493.78
Each
units
92mm 92mm LCD - 3 Yes 90mm - ±0.5 % -25°C - - - -
RS Stock No. 841-7762
Mfr. Part No.METSEPM5310
SGD745.45
Each
units
92mm 92mm LCD - 3 Yes 90mm - ±0.5 % -25°C - - - -
RS Stock No. 914-5281
Mfr. Part No.M850-LTHN-RS-PO
BrandHOBUT
SGD207.09
Each
units
92mm 92mm LCD 4 3 Yes 80mm - 0.1 (Frequency) %, 0.5 (Volts/Amps) %, 1 (Active Power) %, 1 (Apparent Power) %, 1 (Power Factor) % -20°C +70°C IEC 1036 Class 1, IEC 60947-1, IEC 61000-4-11, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61010-1 - 28 → 570V
RS Stock No. 665-4928
Mfr. Part No.7KM2112-0BA00-3AA0
BrandSiemens
SGD694.31
Each
units
92mm 92mm LCD - - - 56mm 54 mm Class 2 - - - - -
RS Stock No. 789-4085
Mfr. Part No.2CMA100149R1000
BrandABB
SGD171.73
Each
units
- - LCD 6 1 Yes 65mm - 1 % -40°C - - - -
RS Stock No. 820-3042
Mfr. Part No.2CSG299903R4052
BrandABB
SGD781.45
Each
units
- - LCD 4 1, 3 Yes 57mm - ±0.5 % -5°C - - - -
RS Stock No. 834-7556
Mfr. Part No.7KM2112-0BA00-2AA0
BrandSiemens
SGD661.83
Each
units
92mm 92mm Graphical, LCD, Monochrome - - Yes 56mm - ±0.2 (Current) %, ±0.3 (Voltage) %, ±0.5 (Output Factor) %, ±0.5 (Output) % -10°C - - - -
RS Stock No. 871-8302
BrandRS PRO
SGD87.09
Each
units
119mm 17.5mm LCD 6 1 Yes 62mm - 1 % -25°C +55°C CE, RoHS Compliant 9999999.9 (Active) kWh, 9999999.9 (Reactive) kVarh 0 → 99999.99kWh
RS Stock No. 776-3014
Mfr. Part No.A9MEM3255
SGD1,240.32
Each
units
- - LCD 10 1, 3 Yes 69mm - - -20°C - - - -
RS Stock No. 810-3286
Mfr. Part No.ACM20-5-AC1-R-C
SGD106.30
Each
units
22.1mm 36.22mm LED 4 1 - 23.11mm 9.14 mm ±1 % 0°C +60°C - - -
RS Stock No. 819-9773
Mfr. Part No.ELC-CT
BrandEfergy
SGD94.20
Each
units
- - LCD 4 - - - - - - - - - 50mA - 90A
RS Stock No. 913-9740
Mfr. Part No.METSEPM5110
SGD561.63
Each
units
- - LCD - 3 - 72mm - ±0.005 (Power Factor) %, ±0.05 (Frequency) %, ±0.5 (Active Energy) %, ±0.5 (Active Power) %, ±0.5 (Apparent Power) %, ±0.5 (Current) %, ±0.5 (Voltage) %, ±2 (Reactive Energy) % -25°C +70°C CE Conforming to IEC 61010-1c, CULus Conforming to UL 61010-1, EN 50470-1, EN 50470-3, IEC 60529, IEC 61557-12, IEC 62053-22, IEC 62053-24 9 A, 65 Hz, 400 (Phase and Neutral) V ac, 690 (Phase) V ac 10 mA → 9 A, 20 → 400 (Phase and Neutral) V ac, 35 → 690 (Phase) V ac, 45 → 65 Hz
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