Best selling Energy monitors from Shelly
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1. Shelly Pro 3EM 120A V2
The Shelly Pro 3EM V2 is an advanced three-phase energy meter specifically designed for DIN rail mounting. This multi-function meter offers comprehensive power monitoring capabilities suitable for residential, commercial and industrial applications. With a maximum current carrying capacity of 120 amps per phase, it enables real-time monitoring of power consumption across all three phases without the need for a separate central unit. The integrated WLAN and LAN connectivity enables flexible network integration and remote access to energy data via compatible applications. The device measures active energy with a class B accuracy rating, ensuring reliable data collection for effective energy management. The compact design facilitates installation in standard distribution boxes and makes it an ideal monitoring device for high power installations, including photovoltaic systems.
2. Shelly Pro 3EM-3CT 63
Next generation of DIN rail mountable energy meters for single or three-phase applications with a combined 63A, 3-phase current transformer.
The Shelly Pro 3EM-3CT63 is a DIN rail mountable energy meter for single or three phase applications. It is equipped with all the flexibility of Gen2 firmware and LAN connectivity and offers professional integrators additional options for end customer solutions. It can operate standalone on a local LAN and/or Wi-Fi network or via cloud home automation services using Modbus, MQTT, HTTP and WebSocket. All incoming connections support TLS.
The device reports the accumulated energy as well as the instantaneous voltage, current, active and apparent power per phase/channel in real time. It stores data in non-volatile memory, which can be retrieved at 1-minute intervals over a period of up to 60 days.
The device has a real-time clock that maintains the correct time if the connection to an SNTP server is lost.
The Shelly Pro 3EM-3CT63 can be accessed, set up and monitored remotely by the user and the device can access and communicate with an automation system as long as they are on the same network.
The device has an integrated web interface that can be used to monitor and control the device and customise its settings.
Note: The device does not have a built-in relay. The contactor is controlled via a Shelly Pro 3EM switch add-on connected to the Shelly Pro 3EM-3CT63.
What our customers think
Pro
- Simple installation Solar Manager
- Simple installation, easy integration into the network, detailed app and overview
- Not dependent on WLAN, also works with LAN
Contra
- The brackets are very large
- Current clamps too large, cables too short
- You have to register for the app
3. Shelly Pro 3EM 120A
The Shelly Pro 3EM is a Wi-Fi-operated, DIN-mountable 3-phase power consumption meter with Wi-Fi, Bluetooth, and LAN connectivity. With its 1% accurate active energy measurement, the Shelly Pro 3EM can be used to monitor the consumption of all household appliances, circuits, and office devices individually. Historical data is stored for up to 60 days, with each phase having a one-minute resolution. Additionally, the scripting functionalities allow for the execution of complex scenarios and provide advanced monitoring options.
Includes 3 current transformers 120 A.
What our customers think
Pro
- Simple installation Solar Manager
- Simple installation, easy integration into the network, detailed app and overview
- Works to a limited extent even without the cloud
Contra
- Ampere blocks are somewhat large and do not fit everywhere
- Cable to power terminals too short
- Graphic display on the app looks overloaded - too much information
4. Shelly PRO EM - 50
The Shelly Pro EM-50A is a DIN-mounted single-phase energy meter with an integrated switch for relay control. With an accuracy of 1% in measuring active energy, the Shelly Pro EM-50 can be used to monitor consumption and control various household appliances, circuits, and office equipment. The device features a data history of 60 days in 1-minute intervals. Additionally, its scripting capabilities allow for the execution of complex scenes and provide more comprehensive monitoring options.
What our customers think
Pro
- LAN capable
- App controllable
5. Shelly Split Core
Current transformer clamp for Shelly Pro 3 EM. Rated primary current: 120 A. Rated secondary current: 40 mA. Accuracy: 1%. Can measure up to 120 A for each phase and the neutral conductor. Phase sequence error detection (optional). Memory that can be retrieved over a period of up to 60 days in 1-minute intervals. Two-way energy consumption monitoring. Monitor your home, office, or factory to avoid unnecessary expenses or voltage drops that can damage your household and office appliances. Shelly Pro 3 EM can calculate two-way consumption: produced and consumed energy for each of the three phases. The device can also be configured to measure three separate circuits of a single-phase electrical system. Displays the quality of your power grid in terms of active power, reactive power, voltage, and power factor.
6. Shelly 3EM-63W Gen3
The Shelly 3EM-63W Gen3 (Wire Model) is an advanced three-phase energy meter specifically designed to accurately measure energy consumption in three individual phases. With a maximum load of up to 63 A and an accuracy of 99 %, this device fulfils IEC 62053-21 Class B standards. It enables real-time monitoring of power data such as current, voltage and power factor with a resolution of one minute. In addition, the Shelly 3EM-63W stores energy consumption data at hourly intervals for up to five years, enabling comprehensive analysis of energy consumption. The compact design integrates electronics and current transformer in one unit, minimising the space required on the DIN rail. Easy installation and advanced connectivity options make this device an ideal choice for modern smart home applications.
What our customers think
Pro
- Easy assembly
- Simple installation
- Very small
Contra
- Only 2.4 GHz
- The app is calculating the electricity costs incorrectly
- The app is a bit confusing to navigate
7. Shelly 3EM-63T Gen3
The Shelly 3EM-63T Gen3 (Flat Terminal Model) is an advanced three-phase energy meter specifically designed to accurately measure energy consumption in three individual phases. With a maximum load of up to 63A and an accuracy of 99%, this device fulfils IEC 62053-21 Class B standards. It enables real-time monitoring of power data such as current, voltage and power factor with a resolution of one minute. The integrated data storage allows energy consumption data to be stored for up to five years, enabling comprehensive analysis of energy consumption over longer periods of time. The Shelly 3EM-63T is easy to install and requires no additional space on the DIN rail as the electronics and current transformers are integrated in a compact housing. The device also offers broad compatibility with over 200 smart home systems, making it a flexible solution for modern households.
What our customers think
Pro
- Simple installation
- Easy assembly
- Very small
Contra
- Only 2.4 GHz
- The app is calculating the electricity costs incorrectly
- The app is a bit confusing to navigate
8. Shelly 3EM
The Shelly 3EM distinguishes and detects energy consumption and energy feed-in to the grid. The measurement data is displayed in the app, the optionally activatable cloud, and the web interface in clear graphics. Additionally, MQTT can be activated to register it with a corresponding MQTT broker. It is factory calibrated with the included clamps, achieving an accuracy of over 99%. Furthermore, it features a relay contact that can be used to control a relay, for example. Installation is done in the distribution box on the DIN rail. The measurement values are displayed in real-time. It is also possible to calculate energy costs. The Shelly 3EM can be controlled via the Shelly app, the optionally activatable cloud, as well as through MQTT and REST API. Energy consumption thresholds can be set, and when reached, the Shelly 3EM can switch off the power via the relay contact. Control based on time or sunrise and sunset is also possible. In addition to measuring energy consumption, the energy fed into the grid can also be measured. The Shelly 3EM automatically detects how much energy is consumed and how much is fed in, presenting this information clearly in a graphic. The measurement data is stored in the cloud for 365 days. The data is also written to a CSV file in 5-minute intervals, which can be exported by the Shelly 3EM. The Shelly 3EM features a programming and debug header that can be used for flashing alternative firmware. It is equipped with an ESP8266 with 4 MB of flash. It can be integrated into various smart home systems: Home Assistant, Hubitat, openHAB, Domoticz, REST API, MQTT, ioBroker, nymea, and HomeSeer.
Included in delivery: 1x Shelly 3EM, 1x user manual, 3x current transformers 120A.
What our customers think
Pro
- good app via the cloud to check the current values
- Simple installation (⚠️Durch ELEKTRIKER⚠️)
- Easy assembly
Contra
- Only works with WiFi
- Conversion converter far too large
- Clamps are relatively large
9. Shelly Pro 3EM 400A
Shelly Pro 3EM-400 is a three-phase energy meter for DIN rail mounting. Equipped with full gen2 firmware flexibility and LAN connectivity, it offers professional integrators additional options for end customer solutions. It can operate standalone on a local LAN and/or Wi-Fi network or via cloud home automation services via MQTT, HTTP and WebSocket. All incoming connections support TLS. The device reports the cumulative energy as well as the instantaneous voltage, current, active and apparent power per phase in real time. It stores data in non-volatile memory, which can be retrieved at 1-minute intervals for a period of up to 60 days. The device has a real-time clock to maintain the correct time if the connection to an SNTP server is interrupted. Shelly Pro 3EM-400 can be remotely accessed, set up and monitored by the user. The device can also access and communicate with an automation system as long as it is in the same network infrastructure. The device has an integrated web interface that allows you to monitor and control the device and customise its settings. The device does not have a built-in relay. The contactor is controlled via a Shelly Pro add-on, which is connected to the Shelly Pro 3EM-400. Scope of delivery: 3x 400 A current transformers
What our customers think
Pro
- Simple installation (for electricians)
- Daily, weekly, monthly and annual consumption readable in the app
- Works to a limited extent even without the cloud
Contra
- Current clamps too large, cables too short
- The cables of the measuring clamps are somewhat short
- Graphic display on the app looks overloaded - too much information
10. Shelly EM Mini Gen4
The Shelly EM Mini Gen4 is a compact smart home energy meter designed to accurately measure current, voltage, power and energy consumption in real time. With multi-protocol connectivity via Wi-Fi, Bluetooth, Zigbee and Matter, it can be flexibly integrated into modern smart home systems – ideal for consumption analysis, load monitoring and automated control. The Shelly EM Mini Gen4 is a versatile energy meter for alternating current (AC) that can be installed in flush-mounted sockets or distribution boxes. It accurately measures current, voltage, power, active energy and energy consumption, and delivers this data in real time for monitoring, consumption analysis and automation. Its multi-protocol connectivity via Wi-Fi, Bluetooth, Zigbee and Matter enables flexible integration into smart home environments, as well as control via an app, voice assistants or automation rules. The compact EM Mini Gen4 supports a wide variety of loads, from small domestic appliances to larger groups of consumers, and is suitable for energy optimisation, load control or detailed consumption analysis. Integration with smart home automation systems enables more efficient processes and schedules for energy management.
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