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. 665-4928
Mfr. Part No.7KM2112-0BA00-3AA0
BrandSiemens
HK$3,793.30
Each
units
92mm 92mm LCD - - - 56mm 54 mm Class 2 - - - - -
RS Stock No. 723-2232
Mfr. Part No.7KM3133-0BA00-3AA0
BrandSiemens
HK$3,346.10
Each
units
92mm 92mm LCD - - Yes 51mm 54 mm Class 1 -10°C - - - -
RS Stock No. 834-7587
Mfr. Part No.7KM9900-0SA00-0AA0
BrandSiemens
HK$385.45
Each
units
- - - - - - - - - - - - - -
RS Stock No. 834-7565
Mfr. Part No.7KM4211-1BA00-3AA0
BrandSiemens
HK$9,215.36
Each
units
92mm 92mm Graphical, LCD, Monochrome - - Yes 82mm - ±0.2 (Current) %, ±0.2 (Voltage) %, ±0.5 (Output) %, ±2 (Output Factor) %, ±2 (THD) % -10°C - - - -
RS Stock No. 834-7552
Mfr. Part No.7KM2111-1BA00-3AA0
BrandSiemens
HK$3,775.36
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. 180-9611
Mfr. Part No.7KM2200-2EA30-1GA1
BrandSiemens
HK$1,745.51
Each
units
- - LCD - 3 - 64mm - - - - - 1 MΩ, 5 A, 65 Hz, 400 V ac 46 → 400V ac
RS Stock No. 180-9632
Mfr. Part No.7KT1654
BrandSiemens
HK$1,022.06
Each
units
- - LCD - 1 - 63mm - - -25°C +55°C - 65 A, 66 Hz, 264 V ac 187 → 264V ac
RS Stock No. 180-9648
Mfr. Part No.7KT1682
BrandSiemens
HK$1,595.88
Each
units
- - LCD - 3 - 63mm - - -20°C +60°C CE 5 A, 65 Hz, 400 V ac 50 → 400V ac
RS Stock No. 180-9638
Mfr. Part No.7KT1664
BrandSiemens
HK$1,793.24
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C - 5 A, 66 Hz, 400 V ac 187 → 400V ac
RS Stock No. 123-9475
Mfr. Part No.7KT1533
BrandSiemens
HK$1,633.90
Each
units
- - LCD 7 1 Yes - - - - - CE Certified, EAC Approval, EIB/KNX Approval, EMC Approval, IMQ Approval - -
RS Stock No. 171-7874
Mfr. Part No.7KM2200-2EA40-1CA1
BrandSiemens
HK$1,569.10
Each
units
90mm 107.8 LCD - 3 - 71.4 - - - - - 1 MΩ, 65 A, 65 Hz, 400 V ac -
RS Stock No. 123-9476
Mfr. Part No.7KT1542
BrandSiemens
HK$3,587.18
Each
units
- - LCD 8 3 Yes - - - - - CE Certified, EAC Approval, EMC Approval, IMQ Approval - -
RS Stock No. 171-7875
Mfr. Part No.7KM2200-2EA40-1DA1
BrandSiemens
HK$1,615.52
Each
units
90mm 107.8 LCD - 3 - 71.4 - - - - - 1 MΩ, 65 A, 65 Hz, 400 V ac -
RS Stock No. 180-9613
Mfr. Part No.7KM2200-2EA30-1JA1
BrandSiemens
HK$1,968.34
Each
units
- - LCD - 3 - 64mm - - - - - 1 MΩ, 5 A, 65 Hz, 400 V ac 46 → 400V ac
RS Stock No. 180-9640
Mfr. Part No.7KT1666
BrandSiemens
HK$1,793.24
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C - 66 Hz, 80 A, 400 V ac 187 → 400V ac
RS Stock No. 834-7562
Mfr. Part No.7KM4212-0BA00-2AA0
BrandSiemens
HK$8,401.14
Each
units
92mm 92mm Graphical, LCD, Monochrome - - Yes 82mm - ±0.2 (Current) %, ±0.2 (Voltage) %, ±0.5 (Output) %, ±2 (Output Factor) %, ±2 (THD) % -10°C - - - -
RS Stock No. 180-9618
Mfr. Part No.7KM3200-0CA01-1AA0
BrandSiemens
HK$2,265.45
Each
units
- - - - 3 - 64mm - - - - - 1 MΩ, 5 A, 65 Hz, 400 V ac 46 → 400V ac
RS Stock No. 180-9639
Mfr. Part No.7KT1665
BrandSiemens
HK$1,434.63
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C CE 66 Hz, 80 A, 400 V ac 187 → 400V ac
RS Stock No. 834-7556
Mfr. Part No.7KM2112-0BA00-2AA0
BrandSiemens
HK$3,888.62
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. 723-2235
Mfr. Part No.7KM4212-0BA00-3AA0
BrandSiemens
HK$8,401.14
Each
units
92mm 92mm LCD - - Yes 82mm 54 mm Class 2 -10°C - - - -