Overview: Electricity meters with different functions


Overview: Electricity meters with different functions


Electricity meters are no longer just simple counters of electricity consumption. Today, they come in many varieties with features such as wireless reading, app control and detailed consumption analysis. For both homeowners and tenants, a modern electricity meter can provide a better overview of energy use and help identify where electricity can be saved.
In this article, you will get a comprehensive overview of different types of electricity meters and their most important features, so that you can get an impression of the options available on the market.
The article presents a selection of electricity meters ranging from simple models to more advanced solutions with digital features. The aim is to provide broad insight into the different types, so that you can more easily assess which model best suits your needs. The information about the products is based on publicly available descriptions from manufacturers and retailers, and they are summarised to provide a clear and informative overview.

Siemens Time Counter mechanical 230V 60Hz is a compact unit designed to record the total operating time of electrical systems. It works by counting hours when the unit is powered, thus providing an accurate overview of how long a device or machine has been in use.
The mechanical construction makes it particularly suitable for environments where simplicity and operational reliability are prioritised. Since it does not require software or digital configuration, it is easy to install and use in many types of electrical panels and control systems.
The time counter is part of Siemens’ 7KT series (model 7KT5807) and is manufactured with a focus on long service life and stable performance. It can be used in both industrial and commercial installations where precise recording of operating hours is required.
- Mechanical operating counter: Records operating time without the need for digital control.
- 230V, 60Hz: Designed for standard electrical installations with this voltage and frequency.
- Robust construction: Suitable for demanding environments requiring reliable operation.
- Easy installation: Can be integrated directly into panels and control systems.
- Long service life: Mechanical design without complex electronic components.
Pros and cons
- Reliable and maintenance-free construction
- Easy to install and use
- No need for software or programming
- Suitable for industrial applications
- Lacks advanced features such as data logging or digital readout
- Limited to use at 230V and 60Hz
Pros and cons
Pros
- Reliable and maintenance-free construction
- Easy to install and use
- No need for software or programming
- Suitable for industrial applications
Cons
- Lacks advanced features such as data logging or digital readout
- Limited to use at 230V and 60Hz
Pros
- Reliable and maintenance-free construction
- Easy to install and use
- No need for software or programming
- Suitable for industrial applications
Cons
- Lacks advanced features such as data logging or digital readout
- Limited to use at 230V and 60Hz
Specifications
- Manufacturer: Siemens
- Model: 7KT5807
- Type: Mechanical time counter
- Voltage: 230V
- Frequency: 60Hz
- EAN: 4001869311012
- Item number: 2904002

This mechanical time counter from Siemens is designed to measure and record operating time in electrical circuits with a supply voltage between 10 and 27 volts DC. It is suitable for use in control cabinets, machines, and other industrial applications where precise time recording is required.
The unit is part of Siemens’ 7KT series and comes in a compact format that makes it easy to integrate into existing installations. The mechanical construction ensures stable operation without the need for software or external configuration.
Weighing only 95 grams, the time counter is easy to handle and install. It is developed to provide reliable measurement over a long period, making it suitable for both new and existing installations.
- Supply voltage: 10–27 V DC
- Mechanical construction: Operation without the need for electronics or software
- Measuring function: Records operating time in kWh
- Compact design: Easy to integrate into cabinets and machines
- Low weight: Only 95 grams
Pros and cons
- Reliable and simple mechanical function
- Suitable for industrial and technical installations
- Requires minimal maintenance
- Easy integration into existing systems
- No digital functions or data output
- Limited to DC voltage between 10 and 27 volts
Pros and cons
Pros
- Reliable and simple mechanical function
- Suitable for industrial and technical installations
- Requires minimal maintenance
- Easy integration into existing systems
Cons
- No digital functions or data output
- Limited to DC voltage between 10 and 27 volts
Pros
- Reliable and simple mechanical function
- Suitable for industrial and technical installations
- Requires minimal maintenance
- Easy integration into existing systems
Cons
- No digital functions or data output
- Limited to DC voltage between 10 and 27 volts
Specifications
- Manufacturer: Siemens
- Model: 7KT5801
- Item number: 2904003
- EAN: 4001869310961
- Supply voltage: 10–27 V DC
- Measuring function: Current flow
- Measuring unit: kWh
- Weight: 95 g
- Product type: Mechanical time counter

The Siemens Time Switch week 1sk 230V/50Hz is a synchronous time relay used to control electrical circuits according to a set time program. The unit is intended for installation in electrical panels and is suitable for applications where automatic control of lighting, heating, or other electrical loads is desired.
The time switch operates with an operating voltage of 230 volts at 50 hertz and has a single changeover contact (1SK). The synchronous motor ensures stable and precise time function, making it suitable for continuous operation in professional installations.
With a compact design of 3 TE (modules), it fits into standard DIN rail setups. The product is part of Siemens’ 7LF5300 series, known for reliability and long service life in industrial and commercial environments.
- Synchronous time relay: Provides precise and stable time control.
- Operating voltage 230V/50Hz: Standard for most electrical installations.
- 1 changeover contact: Enables simple circuit control.
- Compact design: 3 TE width for DIN rail mounting.
- Siemens 7LF5300 series: Known for reliability and quality.
Pros and cons
- Reliable and precise time control
- Compact format for panel mounting
- Suitable for automation of fixed installations
- Long service life and stable operation
- Requires fixed installation in an electrical panel
- Not suitable for battery operation or mobile applications
Pros and cons
Pros
- Reliable and precise time control
- Compact format for panel mounting
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires fixed installation in an electrical panel
- Not suitable for battery operation or mobile applications
Pros
- Reliable and precise time control
- Compact format for panel mounting
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires fixed installation in an electrical panel
- Not suitable for battery operation or mobile applications
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-6
- Item number: 2904009
- EAN: 4001869335759
- Type: Synchronous time relay / time switch
- Operating voltage: 230V / 50Hz
- Contact configuration: 1 changeover contact (1SK)
- Module width: 3 TE
- Measuring function: Current flow
- Measuring unit: kWh
- Weight: 150 g

The Siemens Contactor day 1sk 230V/50Hz is a synchronous time relay used for automatic control of electrical circuits. The unit is equipped with one changeover contact and is intended for operation at 230 volts and 50 hertz.
The product is part of Siemens’ range of components for panels and boxes and is developed to deliver stable and precise time control in daily applications. The synchronous motor ensures accurate time function, making it suitable for fixed on/off cycles.
With a weight of 147 grams and a compact design, the contactor is easy to integrate into existing installations. It is a practical choice for controlling lighting, heating, or other electrical systems where repeated time intervals are desired.
- Synchronous time relay: Provides precise and stable time control.
- One changeover contact: Simple and efficient circuit control.
- 230V/50Hz operation: Standard voltage for most installations.
- Compact design: Easy to mount in panels and boxes.
- Siemens quality: Known for reliability and long service life.
Pros and cons
- Reliable and precise time control
- Compact and lightweight construction
- Easy integration into existing panels
- Suitable for daily on/off functions
- Only one changeover contact limits areas of use
- Requires fixed installation and electrical connection
Pros and cons
Pros
- Reliable and precise time control
- Compact and lightweight construction
- Easy integration into existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits areas of use
- Requires fixed installation and electrical connection
Pros
- Reliable and precise time control
- Compact and lightweight construction
- Easy integration into existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits areas of use
- Requires fixed installation and electrical connection
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-5
- Item number: 2904010
- EAN: 4001869335742
- Type: Synchronous time relay with 1 changeover contact
- Operating voltage: 230V / 50Hz
- Measuring function: Current power
- Measuring unit: kWh
- Weight: 147 g










