Siemens energy meters – overview of selected models


Siemens energy meters – overview of selected models


Energy meters play a key role in modern homes, where accurate measurement of electricity consumption is important for both economy and energy management. Siemens is one of the leading manufacturers of energy meters and offers models ranging from simple household meters to advanced digital solutions with communication functions.
In this article, you will find an overview of what to look for when choosing an energy meter, as well as an introduction to the different types and manufacturers available on the market.
The article presents a selection of Siemens energy meters that represent different functions and areas of application. The aim is to provide an informative overview of the possibilities – from basic models to more advanced variants with remote reading and data collection. The information is based on publicly available product descriptions from manufacturers and distributors, summarised to give a clear picture of the most important features.
Factors to consider when buying an energy meter
When choosing an energy meter, it is important to take into account both technical requirements, installation conditions, and future needs. Here are some of the most important factors to consider.
1. Measurement principle and accuracy
Energy meters can be electronic or electromechanical. Electronic meters are the most common today, as they provide high precision and the possibility of digital reading. Make sure the meter meets applicable standards for accuracy and calibration.
2. Single-phase or three-phase measurement
In most homes, a single-phase meter is sufficient, but if you have larger installations, heat pumps or electric car chargers, a three-phase model may be needed. Siemens offers both types, allowing you to choose the one that suits your consumption pattern.
3. Communication and reading
Many modern energy meters support remote reading via wireless networks or wired connections. This makes it easier to monitor consumption in real time and integrate the meter with an energy management system. Consider whether you want a model with data collection capability or integration with smart home solutions.
4. Installation and compatibility
Check whether the meter fits your existing installation. Some models are designed for DIN rail mounting in a distribution board, while others require a separate enclosure. Siemens offers flexible solutions that fit both new and existing installations.
5. Price and functionality
The price depends on features such as communication, measurement accuracy and design. A simple model may be sufficient for basic consumption, while an advanced meter with data collection can provide better insight into energy use over time.
Products in focus

The Siemens Mechanical Hour Counter 230V 60Hz is a compact device designed to record the total operating time of electrical systems. It works by counting hours when the device is powered, providing an accurate overview of how long a given device or machine has been in use.
The mechanical design makes it particularly suitable for environments where simplicity and operational reliability are a priority. Since it requires no software or digital configuration, it is easy to install and use in many types of distribution boards and control systems.
The hour counter is part of the Siemens 7KT series (model 7KT5807) and has been designed for long service life and stable performance. It can be used in both industrial and commercial installations where accurate recording of operating hours is required.
- Mechanical hour 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 where reliable operation is required.
- Easy installation: Can be directly integrated into distribution boards and control systems.
- Long service life: Mechanical design without complex electronic components.
Pros and cons
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Pros and cons
Pros
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
Cons
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Pros
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
Cons
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Specifications
- Manufacturer: Siemens
- Model: 7KT5807
- Type: Mechanical hour counter
- Voltage: 230V
- Frequency: 60Hz
- EAN: 4001869311012
- Product number: 2904002

This mechanical hour counter from Siemens is designed to measure and record operating time in electrical circuits with a supply voltage from 10 to 27 volts DC. It is suitable for use in control cabinets, machines, and other industrial applications where precise time recording is required.
The device is part of Siemens' 7KT series and comes in a compact format, making it easy to integrate with existing installations. The mechanical design ensures stable operation without the need for software or external configuration.
Weighing only 95 grams, the hour counter is easy to handle and install. It has been developed to provide reliable measurement over a long period, making it suitable for both new and existing systems.
- Supply voltage: 10–27 V DC
- Mechanical design: Operates without the need for electronics or software
- Measurement 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 with existing systems
- No digital functions or data reading
- 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 with existing systems
Cons
- No digital functions or data reading
- 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 with existing systems
Cons
- No digital functions or data reading
- Limited to DC voltage between 10 and 27 volts
Specifications
- Manufacturer: Siemens
- Model: 7KT5801
- Product number: 2904003
- EAN: 4001869310961
- Supply voltage: 10–27 V DC
- Measurement function: Current flow
- Measurement unit: kWh
- Weight: 95 g
- Product type: Mechanical hour counter

The Siemens Contactor week 1sk 230V/50Hz is a synchronous time relay used to control electrical circuits according to a set time programme. The device is intended for installation in electrical distribution boards and is suitable for applications where automatic control of lighting, heating, or other electrical loads is required.
The relay 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 timing, making it suitable for continuous operation in professional installations.
Thanks to its compact design with a width of 3 TE (modules), it fits standard DIN rail mounting systems. The product is part of the Siemens 7LF5300 series, known for its 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 installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Pros and cons
Pros
- Reliable and precise time control
- Compact format for installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Pros
- Reliable and precise time control
- Compact format for installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-6
- Article number: 2904009
- EAN: 4001869335759
- Type: Synchronous time relay / contactor
- Operating voltage: 230V / 50Hz
- Contact configuration: 1 changeover contact (1SK)
- Module width: 3 TE
- Measuring function: Current
- Measuring unit: kWh
- Weight: 150 g

The Siemens Contact Day 1sk 230V/50Hz is a synchronous time relay used for automatic control of electrical circuits. The device is equipped with one changeover contact and is designed to operate at a voltage of 230 volts and a frequency of 50 hertz.
The product is part of Siemens' range of components for panels and boxes and has been developed to provide stable and precise time control in everyday applications. The synchronous motor ensures accurate timing operation, making it suitable for fixed on/off cycles.
With a weight of 147 grams and a compact design, the time relay is easy to integrate with existing installations. It is a practical choice for controlling lighting, heating, or other electrical systems where recurring time intervals are desired.
- Synchronous time relay: Provides precise and stable time control.
- One changeover contact: Simple and effective circuit control.
- Operation 230V/50Hz: Standard voltage for most installations.
- Compact design: Easy installation in panels and boxes.
- Siemens quality: Known for reliability and long service life.
Pros and cons
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Pros and cons
Pros
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Pros
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-5
- Product number: 2904010
- EAN: 4001869335742
- Type: Synchronous time relay with 1 changeover contact
- Operating voltage: 230V / 50Hz
- Measuring function: Current
- Measuring unit: kWh
- Weight: 147 g
Product descriptions

The Siemens Mechanical Hour Counter 230V 60Hz is a compact device designed to record the total operating time of electrical systems. It works by counting hours when the device is powered, providing an accurate overview of how long a given device or machine has been in use.
The mechanical design makes it particularly suitable for environments where simplicity and operational reliability are a priority. Since it requires no software or digital configuration, it is easy to install and use in many types of distribution boards and control systems.
The hour counter is part of the Siemens 7KT series (model 7KT5807) and has been designed for long service life and stable performance. It can be used in both industrial and commercial installations where accurate recording of operating hours is required.
- Mechanical hour 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 where reliable operation is required.
- Easy installation: Can be directly integrated into distribution boards and control systems.
- Long service life: Mechanical design without complex electronic components.
Pros and cons
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Pros and cons
Pros
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
Cons
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Pros
- Reliable and maintenance-free design
- Easy to install and use
- No software or programming required
- Suitable for industrial applications
Cons
- Lacks advanced features such as data collection or digital readout
- Limited to use at 230V and 60Hz
Specifications
- Manufacturer: Siemens
- Model: 7KT5807
- Type: Mechanical hour counter
- Voltage: 230V
- Frequency: 60Hz
- EAN: 4001869311012
- Product number: 2904002

This mechanical hour counter from Siemens is designed to measure and record operating time in electrical circuits with a supply voltage from 10 to 27 volts DC. It is suitable for use in control cabinets, machines, and other industrial applications where precise time recording is required.
The device is part of Siemens' 7KT series and comes in a compact format, making it easy to integrate with existing installations. The mechanical design ensures stable operation without the need for software or external configuration.
Weighing only 95 grams, the hour counter is easy to handle and install. It has been developed to provide reliable measurement over a long period, making it suitable for both new and existing systems.
- Supply voltage: 10–27 V DC
- Mechanical design: Operates without the need for electronics or software
- Measurement 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 with existing systems
- No digital functions or data reading
- 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 with existing systems
Cons
- No digital functions or data reading
- 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 with existing systems
Cons
- No digital functions or data reading
- Limited to DC voltage between 10 and 27 volts
Specifications
- Manufacturer: Siemens
- Model: 7KT5801
- Product number: 2904003
- EAN: 4001869310961
- Supply voltage: 10–27 V DC
- Measurement function: Current flow
- Measurement unit: kWh
- Weight: 95 g
- Product type: Mechanical hour counter

The Siemens Contactor week 1sk 230V/50Hz is a synchronous time relay used to control electrical circuits according to a set time programme. The device is intended for installation in electrical distribution boards and is suitable for applications where automatic control of lighting, heating, or other electrical loads is required.
The relay 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 timing, making it suitable for continuous operation in professional installations.
Thanks to its compact design with a width of 3 TE (modules), it fits standard DIN rail mounting systems. The product is part of the Siemens 7LF5300 series, known for its 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 installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Pros and cons
Pros
- Reliable and precise time control
- Compact format for installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Pros
- Reliable and precise time control
- Compact format for installation in distribution boards
- Suitable for automation of fixed installations
- Long service life and stable operation
Cons
- Requires permanent installation in an electrical distribution board
- Not suitable for battery operation or mobile applications
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-6
- Article number: 2904009
- EAN: 4001869335759
- Type: Synchronous time relay / contactor
- Operating voltage: 230V / 50Hz
- Contact configuration: 1 changeover contact (1SK)
- Module width: 3 TE
- Measuring function: Current
- Measuring unit: kWh
- Weight: 150 g

The Siemens Contact Day 1sk 230V/50Hz is a synchronous time relay used for automatic control of electrical circuits. The device is equipped with one changeover contact and is designed to operate at a voltage of 230 volts and a frequency of 50 hertz.
The product is part of Siemens' range of components for panels and boxes and has been developed to provide stable and precise time control in everyday applications. The synchronous motor ensures accurate timing operation, making it suitable for fixed on/off cycles.
With a weight of 147 grams and a compact design, the time relay is easy to integrate with existing installations. It is a practical choice for controlling lighting, heating, or other electrical systems where recurring time intervals are desired.
- Synchronous time relay: Provides precise and stable time control.
- One changeover contact: Simple and effective circuit control.
- Operation 230V/50Hz: Standard voltage for most installations.
- Compact design: Easy installation in panels and boxes.
- Siemens quality: Known for reliability and long service life.
Pros and cons
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Pros and cons
Pros
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Pros
- Reliable and precise time control
- Compact and lightweight design
- Easy integration with existing panels
- Suitable for daily on/off functions
Cons
- Only one changeover contact limits application possibilities
- Requires permanent installation and electrical connection
Specifications
- Manufacturer: Siemens
- Model: 7LF5300-5
- Product number: 2904010
- EAN: 4001869335742
- Type: Synchronous time relay with 1 changeover contact
- Operating voltage: 230V / 50Hz
- Measuring function: Current
- Measuring unit: kWh
- Weight: 147 g
Different types of energy meters
Energy meters come in many variants, depending on their purpose and technology. Here is an overview of the most common types.
1. Mechanical meters
Classic mechanical meters with a rotating disc are still used in some older installations. They are reliable but lack the digital features offered by modern meters.
2. Electronic meters
These meters record consumption digitally and can display data on a screen. They are more precise and can often communicate with other systems, making them suitable for both domestic and commercial applications.
3. Smart meters
Smart meters are advanced devices that can automatically transmit consumption data to the energy supplier and allow the user to access detailed information about electricity use. They contribute to better energy management and can be integrated with smart homes.
4. Submeters
Submeters are used to measure consumption in specific parts of an installation, e.g. in a flat, rental room or machine. They are useful if you want to divide consumption between several users or functions.
Different brands of energy meters
The energy meter market includes many manufacturers, each with its own areas of specialisation and technological strengths.
Siemens
Siemens is known for its high quality and reliability. Their energy meters combine precision with modern communication technology and are suitable for both domestic and professional installations.
Schneider Electric
Schneider Electric offers a wide range of meters, including models with advanced energy management and integration with building automation systems. They are mainly aimed at companies and larger facilities.
ABB
ABB produces robust energy meters focusing on precision and reliability. Their range includes both simple meters and advanced smart meters for industrial applications.
Landis+Gyr
Landis+Gyr is one of the largest manufacturers of smart meters in the world. It is known for solutions that support the needs of energy suppliers in data collection and consumption analysis.
Kamstrup
Kamstrup is a Danish manufacturer specialising in smart meters for measuring electricity, water and heat. Their products are widely used in both private homes and distribution networks.
Frequently asked questions
What is the difference between a regular energy meter and a smart meter?
A regular energy meter only records consumption, while a smart meter can communicate with the energy supplier and provide access to detailed real-time electricity consumption data.
Do I have to buy and install the energy meter myself?
In most cases, the main meter is supplied and installed by the network operator. If you want to have submeters for internal use, you can buy them yourself and have them installed by a qualified electrician.
How accurate are modern energy meters?
Electronic and smart energy meters are usually very accurate and meet international standards. This means you can trust the recorded consumption data.
Can I read my consumption digitally?
Yes, many modern energy meters have digital displays or can be read using an app or web portal. This makes it easier to monitor consumption and identify energy savings.
How do I maintain an energy meter?
Energy meters usually require minimal maintenance. The most important thing is to ensure proper installation and protect the meter from moisture and dust. Any calibration should be carried out by a specialist if necessary.

