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. 914-5281
Mfr. Part No.M850-LTHN-RS-PO
BrandHOBUT
TWD4,449.00
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. 124-9875
Mfr. Part No.M880-DMF-RS-PO
BrandHOBUT
TWD4,692.00
Each
units
45.5mm 72mm LCD 16 1, 3 Yes 48.3mm - 0.1 (Frequency) Hz, 0.5 (Volts/Amps) %, 1 (Active Power) %, 1 (Apparent Power) %, 1 (Power Factor) % -20°C +70°C CE, IEC 61000-4-11, IEC 61000-4-2-Level III, IEC 61000-4-3-Level III, IEC 61000-4-4-Level III, IEC 61000-4-5-Level III, IEC 61000-4-6-Level III - -
RS Stock No. 914-5360
Mfr. Part No.C-TRAN-250A
BrandHOBUT
TWD6,354.00
Each
units
- - No Display - 3 - 59mm - 0.1 (Active) %, 0.1 (Frequency) %, 0.1 (Reactive Energy) %, 0.2 (Parameters Unless Stated) %, 0.5 (Power Factor) % - +60°C BS 4889, BSEN 60688, CE, CUL, EN 61010-1, EN 61326-2, IEC 1036, IEC 359, IEC 60044-1, IEC 688, IEC 801.EN 55020, UL 330 (L-N) V, 440 (L-L) V 100 → 330 (L-N) V, 100 → 440 (L-L) V
RS Stock No. 124-2437
Mfr. Part No.MEMN003NA
TWD1,210.00
Each
units
- - Mechanical 6 1 Yes 64mm 4 mm - -20°C +50°C IEC 62053-21, IEC 62053-31 - 0 → 99999.9kWh
RS Stock No. 841-7765
Mfr. Part No.METSEPM5100
TWD10,583.00
Each
units
92mm 92mm LCD - 3 Yes 90mm - ±0.5 % -25°C - - - -
RS Stock No. 871-8314
BrandRS PRO
TWD5,361.00
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. 913-9637
Mfr. Part No.A9MEM2100
TWD5,756.00
Each
units
- - LCD 5 1 - 65mm - - -20°C +70°C CE, IEC 60529, IEC 61557-12, IEC 62053-21 63 A, 65 Hz, 999.99 MWh 0 → 999.99 MWh, Maximum of 63 A, 45 → 65 Hz
RS Stock No. 819-9773
Mfr. Part No.ELC-CT
BrandEfergy
TWD2,113.00
Each
units
- - LCD 4 - - - - - - - - - 50mA - 90A
RS Stock No. 823-3602
Mfr. Part No.ACM20-4-AC1-R-F-C
TWD2,394.00
Each
units
22.1mm 36.22mm LED 4 1 - 23.11mm 9.14 mm ±0.1 (Frequency) %, ±2 (Power) % 0°C +60°C - - -
RS Stock No. 776-2998
Mfr. Part No.A9MEM3150
TWD12,740.00
Each
units
- - LCD 10 1, 3 - 69mm - - -20°C - - - -
RS Stock No. 834-7587
Mfr. Part No.7KM9900-0SA00-0AA0
BrandSiemens
TWD1,604.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 665-4928
Mfr. Part No.7KM2112-0BA00-3AA0
BrandSiemens
TWD19,543.00
Each
units
92mm 92mm LCD - - - 56mm 54 mm Class 2 - - - - -
RS Stock No. 913-9740
Mfr. Part No.METSEPM5110
TWD12,722.00
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
RS Stock No. 849-6301
Mfr. Part No.05.25.0003.1
BrandGrasslin
TWD1,720.00
Each
units
- - LCD 6 1 Yes 65mm - - -25°C - - - -
RS Stock No. 570-584
Mfr. Part No.2CDG110083R0011
BrandABB
TWD9,595.00
Each
units
- - - - - - - - - - - - - -
RS Stock No. 724-3655
Mfr. Part No.4850 3000
BrandSocomec
TWD3,219.00
Each
units
- - LCD - 1 Yes 84mm - - -10°C - - - -
RS Stock No. 871-8291
BrandRS PRO
TWD2,221.00
Each
units
90mm 35mm LCD 7 1 Yes 62mm - 1 % -25°C +55°C CE, MID, RoHS Compliant 9999999.9 (Active) kWh, 9999999.9 (Reactive) kVarh 0 → 9999999.9 (Active) kWh, 0 → 9999999.9 (Reactive) kVArh
RS Stock No. 668-4070
Mfr. Part No.RS485-M850
BrandHOBUT
TWD1,252.00
Each
units
80mm 25mm - - - - 55mm - - - - - - -
RS Stock No. 841-7768
Mfr. Part No.METSEPM5111
TWD15,471.00
Each
units
92mm 92mm LCD - 3 Yes 90mm - ±0.5 % -25°C - - - -
RS Stock No. 871-8305
BrandRS PRO
TWD5,189.00
Each
units
92mm 92mm LCD 4 3 Yes 65mm - 1 % -25°C +55°C CE, MID, RoHS Compliant 9999999.9 (Active) kWh, 9999999.9 (Reactive) kVArh 0 → 9999999.9 (Active)kWh