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
$997.88
Each
units
92mm 92mm LCD - - - 56mm 54 mm Class 2 - - - - -
RS Stock No. 723-2235
Mfr. Part No.7KM4212-0BA00-3AA0
BrandSiemens
$1,665.96
Each
units
92mm 92mm LCD - - Yes 82mm 54 mm Class 2 -10°C - - - -
RS Stock No. 723-2232
Mfr. Part No.7KM3133-0BA00-3AA0
BrandSiemens
$437.08
Each
units
92mm 92mm LCD - - Yes 51mm 54 mm Class 1 -10°C - - - -
RS Stock No. 834-7556
Mfr. Part No.7KM2112-0BA00-2AA0
BrandSiemens
$730.57
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. 834-7552
Mfr. Part No.7KM2111-1BA00-3AA0
BrandSiemens
$730.57
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. 834-7587
Mfr. Part No.7KM9900-0SA00-0AA0
BrandSiemens
$76.39
Each
units
- - - - - - - - - - - - - -
RS Stock No. 723-2223
Mfr. Part No.7KT1530
BrandSiemens
$1,526.46
Each
units
- - LCD 7 1 Yes 64mm - Class 2 - - - - -
RS Stock No. 180-9635
Mfr. Part No.7KT1661
BrandSiemens
$275.68
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C CE 5 A, 66 Hz, 400 V ac 187 → 400V ac
RS Stock No. 834-7568
Mfr. Part No.7KM4211-1BB00-3AA0
BrandSiemens
$1,629.81
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. 123-9471
Mfr. Part No.7KM5212-6BA00-1EA2
BrandSiemens
$1,858.50
Each
units
94mm 94mm LCD - - Yes 10.8mm - ±0.2 % -25°C +55°C CE Certified, EAC Approval, UL - -
RS Stock No. 180-9620
Mfr. Part No.7KT1222
BrandSiemens
$3,952.89
Each
units
- - - - - - - - ±2 % - - CE 5 A, 50 Hz, 400 V -
RS Stock No. 123-9478
Mfr. Part No.7KT1548
BrandSiemens
$669.50
Each
units
- - LCD 8 3 Yes - - - - - CE Certified, EAC Approval, IMQ Approval - -
RS Stock No. 177-1035
Mfr. Part No.7KT1546
BrandSiemens
$613.56
Each
units
- - LC Display 8 3 Yes - - - - - - - -
RS Stock No. 123-9474
Mfr. Part No.7KM5412-6CA00-1EA8
BrandSiemens
$2,815.43
Each
units
- - - - - Yes - - ±0.2 % -25°C +55°C CE Certified, EAC Approval, UL - -
RS Stock No. 180-9636
Mfr. Part No.7KT1662
BrandSiemens
$351.93
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C - 5 A, 66 Hz, 400 V ac 187 → 400V ac
RS Stock No. 180-9638
Mfr. Part No.7KT1664
BrandSiemens
$353.07
Each
units
- - LCD - 3 - 63mm - - -25°C +55°C - 5 A, 66 Hz, 400 V ac 187 → 400V ac
RS Stock No. 180-9632
Mfr. Part No.7KT1654
BrandSiemens
$201.26
Each
units
- - LCD - 1 - 63mm - - -25°C +55°C - 65 A, 66 Hz, 264 V ac 187 → 264V ac
RS Stock No. 180-9612
Mfr. Part No.7KM2200-2EA30-1HA1
BrandSiemens
$344.25
Each
units
- - LCD - 3 - 64mm - - - - - 1 MΩ, 5 A, 65 Hz, 400 V ac 46 → 400V ac
RS Stock No. 180-9621
Mfr. Part No.7KT1223
BrandSiemens
$4,664.92
Each
units
- - - - - - - - ±2 % - - CE 5 A, 50 Hz, 400 V -
RS Stock No. 180-9648
Mfr. Part No.7KT1682
BrandSiemens
$314.24
Each
units
- - LCD - 3 - 63mm - - -20°C +60°C CE 5 A, 65 Hz, 400 V ac 50 → 400V ac