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Accurate electricity measurement is becoming increasingly important in residential buildings, commercial facilities, industrial installations, solar photovoltaic systems, electric vehicle charging points and utility applications. As energy prices rise and distributed generation becomes more common, users need meters that can measure consumption, generation and electrical quality while remaining easy to install and economical to operate. The 100A two-module DIN-rail single-phase MID energy meter is designed to meet these requirements in a compact and versatile format.
The SDM230-Mbus is a single-phase, two-wire energy meter designed for direct connection to loads of up to 100A. It combines active and reactive energy measurement with real-time monitoring of voltage, current, power, power factor, frequency and demand-related parameters. Its backlit LCD, pulse outputs and M-Bus communication interface make it suitable for both local viewing and remote data collection.
One of the meter’s most important advantages is its direct 100A measurement capability. Many installations require current transformers when the load current exceeds the capacity of a conventional meter. By accepting a direct connection of up to 100A, this unit can reduce the number of components required, simplify wiring and lower installation costs. The compact two-module, or 36 mm, DIN-rail design also helps installers use valuable space more efficiently inside distribution boards.
The meter is also MID approved, making it appropriate for applications where measured energy may be used for billing, cost allocation or formal energy accounting, subject to the applicable installation and regulatory requirements. Its combination of accuracy, communication, compactness and direct-load capability creates a practical alternative to larger or less flexible metering systems.
Mbus 100A 2 Module Din Rail Single Phase MID Energy Meter
The SDM230-Mbus is a single-phase multi-function energy meter for 1P2W systems. It is designed for a nominal voltage of 230V and supports a maximum direct current of 100A. The meter can measure imported and exported energy, which makes it useful not only for conventional consumption metering but also for installations with solar generation, battery storage or bidirectional power flow.
The front panel includes an LCD with backlighting, allowing users to read measurements in distribution cabinets, equipment rooms and other locations where ambient lighting may be limited. A clear local display reduces the need to connect a commissioning tool simply to confirm basic values such as voltage, current or accumulated energy.
Two pulse outputs are provided for energy signal transmission. Depending on the configuration and application, the pulse outputs can represent imported and exported energy. Pulse outputs are widely used with building management systems, data loggers, remote displays, programmable logic controllers and energy monitoring gateways.
The M-Bus interface follows EN13757-3 communication requirements and is intended for meter networking. M-Bus is widely used in building and utility metering because it allows multiple meters to share a communication network with centralized data collection. This makes the product suitable for apartment blocks, commercial buildings, managed properties and energy submetering projects.
The product family also includes related variants with pulse-only, RS485 Modbus, dual-tariff, digital-input and LoRaWAN functions. This broader range gives system designers flexibility when selecting a communication method, even when the specific product required for a project is the M-Bus version.
| Item | Specification | Application Value |
|---|---|---|
| System type | Single-phase, two-wire, 1P2W | Suitable for common single-phase distribution circuits |
| Nominal voltage | 230V | Compatible with standard low-voltage single-phase systems |
| Maximum direct current | 100A | Allows direct connection without external current transformers in many installations |
| Rated current | 10A | Provides a defined reference current for measurement performance |
| Minimum current | 0.5A | Supports measurement across a broad operating range |
| Starting current | 40mA | Allows the meter to begin registering at a low current level |
| Display | Backlit LCD | Supports convenient local inspection and commissioning |
| Communication | M-Bus EN13757-3 | Enables centralized remote meter reading |
| Pulse outputs | Two outputs | Supports external energy monitoring and control systems |
| Installation | DIN rail, two modules, 36 mm | Saves panel space and simplifies cabinet integration |
| Certification | MID approved | Supports regulated metering and energy accounting applications |
A modern energy meter should provide more than a cumulative kilowatt-hour value. The SDM230-Mbus is designed as a multi-function measurement device, giving users a wider view of electrical system performance. It measures active energy, reactive energy, voltage, current, active power, power factor, frequency and demand-related values.
Active energy is the energy converted into useful work, heat or mechanical output by connected equipment. It is normally expressed in kilowatt-hours and is the primary value used for electricity billing and consumption analysis. The meter supports active energy measurement in accordance with IEC 62053-21 Class 1.0 and EN50470-1/3 Class B requirements as specified for the product.
Class 1.0 performance means that the meter is designed for a defined accuracy level under the relevant test conditions. In practical terms, this supports reliable energy accounting for residential, commercial and light industrial applications. The MID approval further supports the use of the meter in applications where measurement performance and conformity are important considerations.
Reactive energy is associated with inductive and capacitive loads. Motors, transformers, fluorescent lighting systems, power supplies and other equipment may draw reactive power even though reactive energy does not directly produce useful mechanical output. Monitoring reactive energy can help users understand power quality, assess system loading and identify opportunities for power factor correction.
The meter provides reactive energy measurement according to the stated IEC 62053-23 Class 2 and IEC 61557-12 Class 2 specifications. This additional measurement function is especially useful in commercial and industrial facilities where reactive power can affect network efficiency, transformer utilization and utility charges.
Voltage and current readings provide immediate information about the operating condition of a circuit. Voltage monitoring can help identify supply irregularities, overvoltage or undervoltage conditions, while current monitoring shows how heavily the circuit is loaded. Because the meter measures these values directly, users can inspect the relationship between supply voltage, load current and power consumption.
The stated accuracy for both current and voltage is 0.5% of range maximum. This level of performance is suitable for many submetering, monitoring and energy management applications. When used alongside the power and power factor readings, voltage and current data can help maintenance teams investigate abnormal consumption and uneven loading.
Real-time power measurement shows how much active power a load is using at a particular moment. This is useful for checking equipment operation, identifying peak demand periods and evaluating the effect of switching loads on a building or installation.
Power factor indicates the relationship between active power and apparent power. A value close to unity generally indicates that a larger proportion of the electrical current is being converted into useful active power. A lower power factor can indicate the presence of inductive or distorted loads and may result in higher current for the same useful output. The product specifies power factor accuracy of 1% of unity, with a resolution of 0.01.
Frequency measurement is useful for confirming the stability of the supply and identifying unusual operating conditions. The specified frequency accuracy is 0.2% of mid-frequency. Although frequency is normally stable in a utility-connected system, this value can be useful when monitoring generators, backup systems and other power sources.
Demand data helps users understand the average power requirement over a defined period rather than viewing only instantaneous power. This is important where peak demand charges apply or where facility managers need to control simultaneous equipment operation. The meter includes demand-related measurement among its multi-function parameters, allowing it to contribute to broader energy management strategies.
The ability to measure up to 100A directly is one of the clearest practical advantages of this meter. In a conventional current-transformer-based arrangement, the installer must select, mount and wire external CTs. The CT ratio must be suitable for the load, the secondary circuit must be connected correctly and the orientation must be checked carefully. Incorrect CT installation can cause inaccurate readings, reverse power indications or safety concerns.
With direct measurement, the load conductors pass through the meter’s current terminals without the need for external CTs in applications within the specified current range. This can reduce the number of components in the panel and simplify the installation process. It also removes the need to configure a CT ratio for the meter, which can make commissioning faster and reduce the possibility of ratio-related errors.
Direct connection can also improve cost control. External CTs, mounting accessories, additional terminal blocks and extra wiring all add material and labor expenses. For a single meter these savings may be modest, but in projects containing dozens or hundreds of submeters, the cumulative effect can be significant.
Another advantage is easier maintenance. A direct meter has fewer external measurement components that can become loose, damaged or incorrectly replaced. When troubleshooting, technicians can focus on the meter terminals, supply connections and communication wiring rather than checking a separate current transformer circuit.
Direct connection does not eliminate the need for correct protection and installation practice. The circuit must be designed within the meter’s voltage and current ratings, appropriate overcurrent protection must be used, and all conductors must be sized and terminated according to local electrical regulations. Qualified personnel should complete installation and commissioning.
Space inside electrical distribution boards is often limited. Modern panels may need to accommodate circuit breakers, residual-current devices, contactors, surge protection, control relays, communication devices and multiple energy meters. A meter measuring only two DIN modules, or 36 mm in width, can help designers organize these components more efficiently.
The compact form factor is particularly valuable in residential distribution boards, apartment submetering cabinets, small commercial panels and EV charging installations. It allows more meters to be placed within a fixed enclosure and may reduce the need for larger cabinets. It can also simplify retrofits where available rail space is already constrained.
DIN-rail mounting provides a familiar installation method for electrical contractors. The meter can be positioned alongside other modular devices, supporting a clean and standardized panel layout. Clear wiring and appropriate spacing remain essential, but the modular design reduces the mechanical complexity normally associated with panel-mounted metering equipment.
The compact enclosure also supports the use of the meter in distributed monitoring architectures. For example, individual circuits in a multi-tenant building can each be monitored by a dedicated meter, while an M-Bus network collects data at a central location. This approach provides more detailed information than a single meter at the building incomer.
M-Bus, or Meter-Bus, is designed specifically for the communication requirements of utility and building meters. The SDM230-Mbus supports M-Bus EN13757-3 communication, allowing the meter to exchange measurement data with a compatible master device, data concentrator or building management system.
Centralized communication eliminates the need for technicians to visit every meter simply to record readings. A building operator can collect data from multiple apartments, offices, retail spaces or equipment circuits from a central workstation. This improves the efficiency of regular data collection and supports more frequent analysis of consumption patterns.
The product specifies an M-Bus communication distance of up to 1,000 meters under suitable installation conditions. The available baud rates range from 300bps to 9,600bps, with selectable parity and stop-bit settings. Actual network performance depends on cable type, topology, the number of connected devices, master capability, electrical noise and installation quality.
In apartment buildings, each dwelling can have its own submeter while the property manager uses a central M-Bus master to collect readings. This supports transparent energy allocation and reduces manual meter-reading work.
In commercial properties, individual offices, retail units or common-area services can be monitored separately. Facility managers can compare consumption between tenants, identify unusual changes and prepare internal cost reports.
In industrial facilities, the meter can monitor workshops, auxiliary buildings, production lines or individual machines. The resulting information can be combined with production data to evaluate energy intensity and identify inefficient operating periods.
In solar photovoltaic installations, the meter can measure a single-phase circuit and provide imported or exported energy information. When integrated with an appropriate monitoring platform, the data can help distinguish grid consumption from locally generated or exported energy.
In EV charging applications, the meter can be installed upstream or downstream of a suitable charging circuit, depending on the system design. It can provide energy data for operational monitoring, user allocation or internal reporting. Application-specific billing and regulatory requirements should always be evaluated before deployment.
Two pulse outputs provide an additional integration method. Pulse signals can be connected to a pulse counter, data logger, programmable controller or energy management gateway. They are useful when a project already uses pulse-based acquisition equipment or when a simple energy signal is preferred over a full digital communication network.
The availability of both M-Bus and pulse outputs gives system designers more than one way to collect information. M-Bus can provide broader data access, while pulses can be used for a simple total-energy counter or a separate monitoring function. This flexibility can be helpful when integrating the meter into existing infrastructure.
Traditional energy meters were often installed with the assumption that power would flow only from the utility supply to the consumer. That assumption is no longer valid in many modern installations. Solar panels, battery energy storage systems, microgeneration and some energy management systems can create power flow in both directions.
The SDM230-Mbus supports bidirectional measurement, allowing the meter to distinguish between imported and exported energy according to the configured application and wiring arrangement. This capability is important for sites where a consumer may also generate electricity or where energy can move between a local source and the grid.
Bidirectional measurement can support several use cases. A solar-equipped residence may consume energy from the grid at night and export surplus energy during sunny periods. A commercial facility may use battery storage to reduce demand during peak periods and recharge the battery at other times. An EV installation may incorporate local generation and controlled charging. In each case, understanding the direction of energy flow provides a more complete picture of system operation.
Correct wiring and configuration are essential for bidirectional applications. Installers should verify the terminal arrangement, phase direction, energy registers and communication mapping before the meter is placed into service. The meter should also be used in accordance with the applicable technical and regulatory requirements of the project.
The Measuring Instruments Directive, commonly known as MID, establishes requirements for certain measuring instruments placed on the European market. A MID-approved energy meter has been assessed against applicable conformity requirements, providing users with greater confidence when the device is selected for regulated energy measurement and billing-related applications.
The product has been approved to meet the requirements of EU Directive 2014/32/EU. This is an important distinction between a meter intended primarily for internal monitoring and one designed for applications where measurement results may have formal commercial significance.
MID approval does not replace the need for correct installation, sealing, commissioning or local legal compliance. The meter must be used within its rated conditions, installed according to the manufacturer’s instructions and applied in a manner consistent with relevant national rules. Nevertheless, the approval provides a strong foundation for projects that require documented measurement performance.
For system designers, MID approval can simplify product selection. Instead of combining a basic monitoring meter with a separate device for formal energy accounting, one approved meter may serve both operational monitoring and eligible billing-related purposes. The suitability of the complete installation should always be confirmed by the responsible engineer or authority.
A basic single-function meter may display only accumulated active energy. Such a device can be adequate for simple consumption recording, but it provides limited insight into voltage, current, power factor, frequency or reactive energy. The SDM230-Mbus offers a much broader measurement set, helping users diagnose operating conditions and make better energy management decisions.
The backlit display also improves local usability. A technician can inspect electrical values directly at the panel rather than relying entirely on a remote system. This is useful during installation, maintenance and fault investigation.
Some multi-function meters provide extensive measurement capabilities but occupy more panel space or require additional accessories. The two-module design of the SDM230-Mbus is more suitable where space is limited. It delivers essential multi-function measurement in a form factor that is easier to integrate into modular distribution equipment.
CT-based meters are necessary for high-current systems beyond the direct input range of a meter, but they add components, wiring and configuration requirements. For circuits up to 100A, direct connection can be simpler and more economical. It can also reduce uncertainty related to CT ratio selection, polarity and secondary wiring.
Pulse-only meters can provide an energy total to an external counter, but they do not necessarily expose the full range of real-time electrical values. The M-Bus version combines pulse outputs with digital communication, allowing access to more detailed information through a compatible master system.
A general-purpose monitoring device may be suitable for internal analysis but may not meet the requirements of applications involving regulated energy measurement. MID approval gives the SDM230-Mbus a stronger position where formal measurement conformity is a project requirement.
The performance of an energy meter depends not only on its circuit design but also on the consistency of its manufacturing process. Measurement products must maintain stable electrical characteristics, reliable communication and durable mechanical construction across large production volumes. Eastron Electronic Co., Ltd. combines product development, manufacturing and laboratory testing capabilities to support these objectives.
The company operates as a specialist manufacturer of electricity meters, power analyzers, current sensors, communication modules and energy management products. This focused product scope allows engineering teams to build experience in electrical measurement, embedded software, communications and energy applications.
Its development activities are supported by teams in China and the United Kingdom, together with cooperation involving universities and technical institutions. This combination of in-house development and external technical cooperation helps the company follow changes in energy management, communications and metering technology.
A significant manufacturing advantage is the company’s professional laboratory. The laboratory is capable of conducting EMC, low-voltage directive, accuracy and environmental tests according to relevant IEC, EN, GB and UL standards. Testing during product development and production support helps identify design weaknesses before products reach the field.
EMC testing is important because meters are installed alongside switching devices, variable-speed drives, power supplies and communication equipment that may generate electrical interference. A meter must continue to measure and communicate correctly in an electrically active environment.
Accuracy testing verifies measurement performance across relevant operating conditions. Environmental testing helps assess the product’s ability to function under changes in temperature, humidity and other conditions encountered during service. Low-voltage and safety-related testing supports evaluation of insulation, electrical protection and safe operation.
Laboratory capability also improves engineering feedback. Instead of relying only on external testing at the end of a development cycle, designers can test prototypes, review results and make changes earlier. This can shorten development cycles and improve product consistency.
The company follows an ISO 9001 quality management system. A quality management system provides a structured framework for design control, purchasing, production, inspection, documentation and corrective action. For metering products, consistent processes are especially important because small changes in components, calibration or assembly can affect measurement performance.
Production has been approved by SGS according to MID standards, supporting the company’s ability to manufacture products for regulated metering applications. In addition, the company holds patented technologies in software, embedded software and hardware and has been recognized as a high-tech enterprise and a high-tech research and development center for electricity application.
These capabilities are relevant to the SDM230-Mbus because the product combines precision measurement, embedded processing, LCD operation and digital communication in one compact enclosure. Each function requires controlled design and manufacturing practices.
For a product used in large submetering projects, consistency is as important as the performance of an individual sample. A project owner may install dozens or hundreds of meters and expect their readings, communication behavior and physical dimensions to remain consistent. A structured quality system, controlled production process and dedicated testing capability help support this requirement.
Manufacturing strength also includes technical support after delivery. Product documentation, application guidance, communication information and troubleshooting assistance can reduce commissioning time and help integrators create repeatable installation procedures.
Residential buildings often need separate measurement for apartments, garages, common services or auxiliary equipment. The compact two-module design allows meters to be installed in centralized distribution boards without consuming excessive panel space. M-Bus communication allows the building operator to collect readings from multiple apartments through a central system.
The backlit display provides a local reference for residents, maintenance personnel or inspectors. The direct 100A rating is suitable for many individual residential circuits, although the actual load calculation and protection design must be completed by a qualified professional.
Commercial properties benefit from circuit-level or tenant-level energy data. A building may contain offices, retail units, restaurants, workshops and shared services with very different consumption profiles. Installing individual meters can help allocate costs, compare performance and identify unexpected energy use.
Because the meter provides voltage, current, power and power factor information in addition to energy totals, facility managers can use it for more than billing allocation. It can help identify overloaded circuits, equipment operating outside expected schedules and poor power factor conditions.
Single-phase solar installations require measurement of energy imported from and exported to the grid. The meter’s bidirectional capability can support this requirement when correctly installed and configured. It can also provide data for a broader energy management system that combines generation, consumption and storage information.
In a residential solar system, the meter may be used to monitor the relationship between household consumption and photovoltaic production. In a small commercial system, it may provide circuit-level data for evaluating self-consumption and exported energy.
EV charging equipment can create substantial electrical loads, particularly when several chargers operate simultaneously. A dedicated energy meter can record the energy used by a charging circuit and provide data for operating analysis, user allocation or facility management.
The meter’s direct 100A capability may suit many single-phase charging applications, subject to the charger rating, cable size, protective devices and local electrical regulations. M-Bus communication can connect the meter to a central building or charging management system.
In industrial facilities, the meter can monitor individual machines, auxiliary systems, workshops, offices or remote buildings. Its multi-function measurement capability helps maintenance teams examine load behavior, power factor and supply conditions.
Utility and energy service providers may also use compact meters in submetering projects where direct measurement and remote reading are needed. The appropriate certification, communication architecture and legal metering status should be confirmed for every project.
Before installation, the project engineer should confirm that the system is a single-phase, two-wire circuit and that the nominal voltage and maximum current fall within the meter’s ratings. The circuit design should include appropriate isolation and overcurrent protection.
During wiring, installers should follow the supplied wiring diagram and verify line and neutral terminals carefully. Incorrect wiring can affect measurement accuracy, create reverse energy indications or present a safety hazard. All terminal screws should be tightened according to good electrical installation practice.
For M-Bus networks, the installer should plan cable routing, device addressing, master capacity and network topology. Communication cables should be separated from sources of excessive electrical interference where practical. Each meter should have a unique address within the network, and the baud rate and other communication settings should be documented.
After energizing the system, commissioning personnel should compare the displayed voltage and current with independent test instruments when appropriate. They should also confirm the energy direction, pulse activity and M-Bus response. A commissioning record should include the meter identification, address, installation location, initial reading and relevant configuration parameters.
In a bidirectional application, the commissioning process should include tests under both import and export conditions if those operating states are available. This confirms that the correct registers are being collected and that the monitoring software interprets the data correctly.
Energy meters generally require limited routine maintenance when correctly installed, but periodic inspection is still valuable. Operators should check for loose terminals, signs of overheating, damaged conductors, moisture, unusual display behavior or communication errors.
Remote data collection can help identify problems before they become serious. A sudden change in current, power factor or energy consumption may indicate equipment failure, a schedule change or an installation issue. Communication alarms can reveal cable faults, duplicate addresses or master-device problems.
The backlit LCD remains useful even in a highly automated system. During maintenance, technicians can compare the local display with the values received by the monitoring platform. This helps separate meter-side issues from gateway, network or software problems.
The meter’s compact format and direct connection can also reduce lifecycle complexity. Fewer external components mean fewer points requiring inspection, while the modular DIN-rail form allows replacement without redesigning the entire distribution board. Any replacement must be carried out by qualified personnel with the circuit safely isolated.
When selecting a meter, the first consideration should be the electrical system. The SDM230-Mbus is intended for single-phase, two-wire applications with a nominal voltage of 230V and direct current up to 100A. Projects requiring three-phase measurement, higher current or external CT connection should use a product designed for those conditions.
The second consideration is the communication architecture. M-Bus is appropriate when a dedicated metering network and central master are available or planned. Projects based on industrial automation networks may prefer an RS485 Modbus variant, while simpler systems may use pulse outputs alone. Selecting the communication method at the design stage avoids costly interface changes later.
The third consideration is the regulatory role of the meter. If the reading will be used for formal commercial energy accounting, the project team should verify MID requirements and local rules. The product’s MID approval is a significant advantage, but the complete application must still comply with installation and legal requirements.
The fourth consideration is the expected load profile. Direct measurement is attractive for circuits up to 100A, but designers should account for continuous loading, starting currents, future expansion and protection coordination. A margin between expected operating current and the maximum rating may be appropriate depending on the application.
The meter is designed for a single-phase, two-wire system, commonly identified as 1P2W. Its stated nominal voltage is 230V.
The maximum direct current is 100A. This allows many residential, commercial and small industrial circuits to be measured without external current transformers.
Yes. The meter supports bidirectional measurement for applications where energy may be imported from or exported to the supply network, such as solar photovoltaic and battery-supported systems.
The product provides M-Bus communication according to EN13757-3. It also includes two pulse outputs for external energy monitoring equipment.
Yes. When connected to a compatible M-Bus master, gateway or data acquisition system, the meter can provide remote measurement data and reduce the need for manual readings.
The meter occupies two DIN modules and has a stated width of 36 mm. This compact size is useful in distribution boards with limited rail space.
The meter measures or provides information related to active energy, reactive energy, voltage, current, power, power factor, frequency and demand-related parameters.
Yes. The unit includes a backlit LCD, which improves readability during installation, inspection and maintenance when cabinet lighting is limited.
Direct connection can reduce the number of components, simplify wiring, eliminate CT ratio configuration and lower installation complexity for circuits within the meter’s direct current range.
Yes. The product has been approved to meet the requirements of EU Directive 2014/32/EU. Users should still verify the specific legal and installation requirements applicable to their project.
It can be considered for suitable single-phase EV charging circuits within its voltage and current ratings. The charger design, protection system, cable sizing and applicable regulations must be reviewed by a qualified professional.
No. It is a measurement device and communication component. A complete energy management solution may also require a communication master, gateway, software platform, data storage, dashboards and control equipment.
Installers should check the system type, voltage, current, terminal wiring, protective devices, M-Bus address, communication parameters, energy direction and agreement between local readings and the monitoring system.
The 100A two-module DIN-rail single-phase MID energy meter provides a balanced solution for accurate measurement, compact installation and remote data collection. Its direct 100A capability reduces the need for external current transformers in many applications, while its 36 mm width helps conserve valuable distribution-board space.
Its multi-function measurement capabilities extend beyond basic energy counting. Users can monitor active and reactive energy, voltage, current, power, power factor, frequency and demand-related information. Bidirectional measurement supports modern installations that include solar generation, battery storage or other sources of reverse power flow.
The combination of M-Bus communication, two pulse outputs, a backlit LCD and MID approval makes the product suitable for a wide range of residential, commercial, industrial, EV charging and energy management applications. Compared with basic meters, CT-dependent solutions or pulse-only devices, it offers a more complete set of functions in a compact and economical format.
The manufacturer’s strengths in electricity measurement, embedded technology, product development, laboratory testing and ISO 9001 quality management further support the product’s value. EMC, accuracy, environmental and low-voltage testing capabilities help maintain product reliability, while MID-related production approval supports regulated metering applications.
For projects that require direct measurement up to 100A, centralized M-Bus reading, compact DIN-rail installation and dependable multi-function monitoring, the SDM230-Mbus is a practical and technically versatile choice. Correct electrical design, qualified installation and compliance with applicable regulations remain essential to achieving the best long-term performance.
IEC 62053-21, Electricity Metering Equipment: Particular Requirements for Static Meters for Active Energy.
IEC 62053-23, Electricity Metering Equipment: Particular Requirements for Static Meters for Reactive Energy.
IEC 61557-12, Electrical Safety in Low-Voltage Distribution Systems and Related Equipment.
EN 50470-1, Electricity Metering Equipment: General Requirements, Tests and Test Conditions.
EN 50470-3, Electricity Metering Equipment: Particular Requirements for Static Meters for Active Energy.
EN 13757-3, Communication Systems for Meters and Remote Reading of Meters: Application Layer.
European Union Directive 2014/32/EU on Measuring Instruments.
ISO 9001, Quality Management Systems: Requirements.
Manufacturer product information for the SDM230 single-phase multi-function energy meter series.
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