Shelly Pro 3EM-400A

Industrial Solutions

MODBUS support for easy and fast deployment in existing industrial installations.

Fully supports mjS scripting, allowing you to create advanced customizations and feature for your particular industrial automations.

Shop Now
Shelly 2 Gen 3

Remotely control a wide range of home appliances and office equipment from anywhere. Retrofit your standard electrical wall boxes, power sockets, and light switches or other places with limited space.

Shop Now

Business and Industrial grade solutions

Automate. Earn. Save.

PV System Advanced Automation Solutions with Shelly

Using Shelly devices for advanced automation will enable you to save and earn more!

With the diverse connectivity options, Shelly lowers the cost of integrations and allows advanced automations by connecting to your automation system or to cloud based IoT service providers.

Shelly doesn't require Cloud.
No Cloud Required

Local control.

Control your environment using Shelly devices, without connecting them to an external cloud or server.

switch on off icon
MQTT, HTTP, KNX

Highly Compatible.

Shelly devices have Integrations with multiple IoT protocols, providing high functionality and compatibility.

Bolt Lighting Icon
No Wiring Required

Precise Monitoring.

With measurement accuracy of  1% for to 3 channels up to 400A for each phase using a single Shelly device.

check quality badge icon
Industrial Class Devices

Exceptional Value.

Shelly offers affordable & quality solutions with reliable performance and enhanced capabilities. Designed in the EU.

Shelly Solutions

Precise Energy Management

Always have another source of your critical information, validating your installations proper management and efficiency. Receive alerts and notifications, еnsuring you or your client have precise energy tracking.
Smart

Remote Automation & Control

Not just Smart, but Wise. Use Shelly's Pro devices to switch on and off at the right moment. Dynamically adjust the operations of inverters in your PV system to respond to real-time conditions, using Shelly scripting and scenes.

Industry Grade Security

Shelly's ecosystem supports mTLS for MQTT, HTTP, secure outbound WebSockets and more. Its industry-grade security allows for direct connections to your cloud infrastructure, reducing the cost of deploying complex networks and VPNs.
Virtual Components & Scripting

Extensibility

Expand the built-in functionality of Shelly devices, by creating additional device logic with scripting and exposing this logic by Virtual Components.

Monitor & Control
your Photovoltaic System or Professional Automated installation everywhere you go -
  totally free!

01
02
03
Home Automation

Maximize your energy efficiency


With Shelly, you can monitor both how much energy your appliances consume and how much your photovoltaic system produces. When your solar panels are generating more energy than you're using, Shelly allows you to turn on appliances like water heaters to use up the excess energy, preventing waste. By optimizing your solar energy usage in real time, you can maximize efficiency and save on electricity costs.
Business Automation

Data-Driven Energy Management


For businesses looking to invest in photovoltaics, Shelly provides detailed consumption monitoring, helping you understand your energy needs. By tracking how much energy your business consumes, Shelly helps you make informed decisions about the size of your photovoltaic system and whether to invest in energy storage. Use real-time data to plan wisely and optimize your solar investment for long-term cost savings.
Industrial Automation

Optimize Energy Selling


In industrial settings, Shelly helps you monitor and manage your energy production for selling on the energy market.

With real-time tracking and insights, you can make strategic decisions based on day-ahead prices, ensuring you sell your energy at the best rates.
Energy efficient house with Solar Panels on the roof
Energy efficient house with Solar Panels on the roof
Home Automation

Maximize your energy efficiency


With Shelly, you can monitor both how much energy your appliances consume and how much your photovoltaic system produces. When your solar panels are generating more energy than you're using, Shelly allows you to turn on appliances like water heaters to use up the excess energy, preventing waste. By optimizing your solar energy usage in real time, you can maximize efficiency and save on electricity costs.
Business Automation

Data-Driven Energy Management


For businesses looking to invest in photovoltaics, Shelly provides detailed consumption monitoring, helping you understand your energy needs. By tracking how much energy your business consumes, Shelly helps you make informed decisions about the size of your photovoltaic system and whether to invest in energy storage. Use real-time data to plan wisely and optimize your solar investment for long-term cost savings.
Industrial Automation

Optimize Energy Selling


In industrial settings, Shelly helps you monitor and manage your energy production for selling on the energy market.

With real-time tracking and insights, you can make strategic decisions based on day-ahead prices, ensuring you sell your energy at the best rates.

Shop Shelly Pro Line

Browse Shelly Professional line devices for DIN-rail with 5 year warranty.

Shelly Pro 1

Shelly Pro 1

$53.49
$53.49 $0.00
1-phase, 1-channel relay with potential-free outputs (dry contacts), supporting up to 16A for professional lights and appliance automation for residential or commercial use.
Lights
Appliances
Irrigation
Pool automation
Water manifolds
Shelly Pro 3EM

Shelly Pro 3EM

$128.99
$128.99 $0.00
Next-generation DIN-mountable 3-Phase Energy Meter  Shelly Pro 3EM is a DIN rail mountable three-phase energy meter. Enhanced with all the gen2 firmware flexibility and LAN connectivity, it provide...
Variant: 120A
Shelly Pro Dual Cover / Shutter PM

Shelly Pro Dual Cover / Shutter PM

$105.49
$105.49 $0.00
Dual-cover smart controller with integrated precise power meters - control and monitor the consumption of each cover separately. Perfect for automation of roller shutters, curtains, gates, etc.
Covers & Blinds
Power monitoring
Shelly Pro 3

Shelly Pro 3

$75.49
$75.49 $0.00
3-Phase, 3-channel relay with potential-free outputs, supporting a total of 48A for professional automation of residentials or commercial use. Control temperature or lights automation in large spaces.
Lights
Appliances
Valves
Heating & Cooling
Shelly Pro 3EM Switch Add-on

Shelly Pro 3EM Switch Add-on

$21.49
$21.49 $0.00
Galvanically isolated switch designed to expand the capabilities of the Shelly Pro 3EM device. Easily control electrical devices with greater flexibility and control over your consumption.
Contactor control
Shelly Pro 1PM

Shelly Pro 1PM

$65.49
$65.49 $0.00
1-phase, 1-channel relay with an integrated power meter, which allows you to measure the precise power consumption of all automated lights or heavier appliances.
Shelly LAN Switch
Out of stock

Shelly LAN Switch

$47.49
$47.49 $0.00
DIN-mountable Ethernet switch with 5 RJ45 ports, engineered for reliability and performance. Ensures a consistent and stable direct network connection to your devices.
Shelly Pro 2

Shelly Pro 2

$70.99
$70.99 $0.00
1-phase, 2-channel relay with potential-free outputs (dry contacts), supporting a total device maximum of 25A for professional lights and appliance automation
Lights
Appliances
Irrigation
Pool automation
Water manifolds
Shelly Pro 2PM

Shelly Pro 2PM

$88.99
$88.99 $0.00
1-phase, 2-channel relay with two integrated precise power meters that allow customers to control and monitor the consumption for each channel separately. Suitable for roller shutter automation.
Shelly Pro 4PM
Out of stock

Shelly Pro 4PM

$105.49
$105.49 $0.00
Professional 4-channel DIN rail smart switch with power metering, supporting up to 16A per channel. Control and monitor the consumption for each channel separately.
Lights
Heating & Cooling
Appliances
Load shedding
Shelly Pro 3EM-400

Shelly Pro 3EM-400

$246.49
$246.49 $0.00
Shelly Pro 3EM-400 is a DIN rail mountable three-phase energy meter. Enhanced with all the gen2 firmware flexibility and LAN connectivity, it provides professional integrators with additional optio...
Variant: 400A
Shelly PRO EM-50

Shelly PRO EM-50

$80.99
$80.99 $0.00
1-Phase Energy Meter with an integrated switch for contactor control. Control and monitor the consumption of any home appliances, electric circuits and office equipment.
Energy saving
Power monitoring
PV systems
Shelly Wave Pro 1

Shelly Wave Pro 1

$53.49
$53.49 $0.00
1-channel DIN rail Z-Wave smart switch with dry contacts, supporting up to 16 A, designed for professional lights and appliance automation in residential or commercial use.
Lights
Appliances
Irrigation
Heating & Cooling
Pool automation
Shelly Wave Pro 1PM

Shelly Wave Pro 1PM

$65.49
$65.49 $0.00
Professional 1-channel DIN rail Z-Wave smart switch, up to 16 A. Equipped with an integrated power meter, allowing you to measure power consumption of all automated lights or heavier appliances
Power monitoring
Appliances
Lights
Heating
Floor heating
Shelly Wave Pro 2

Shelly Wave Pro 2

$70.99
$70.99 $0.00
2-channel DIN rail Z-Wave smart switch with dry contacts, supporting up to 25 A, designed for professional lights and appliance automation in residential or commercial use.
Lights
Appliances
Irrigation
Heating & Cooling
Pool automation
Shelly Wave Pro 2PM

Shelly Wave Pro 2PM

$88.99
$88.99 $0.00
Professional 2-channel DIN rail Z-Wave smart switch, supporting up to 25 A. Equipped with an integrated power meter, allowing you to measure power consumption for each channel separately or together.
Power monitoring
Appliances
Lights
Heating
Floor heating

Business Solutions and Customer Projects from around the world

Smart Electric Car Charger

Mark Boyle 🇬🇧
I automated my EV charger using a Shelly 1 to control charging times based on my night-time tariff, optimizing energy use for my Nissan Leaf.
Smart Electric Car Charger

Heater Smart Switch

by Gerhard Müller 🇩🇪
To automate my home heating system, I installed a Shelly 1PM Mini Gen3 switch to control the gas boiler based on sensor data, reducing standby energy consumption.
Heater Smart Switch

Project Luma: Home Cinema

Luca Scaringella 🇩🇪
Luma is a fully automated home cinema that I built with my father, combining his construction skills with my technical expertise in software engineering, using Shelly components, a custom server, and app.
Project Luma: Home Cinema

RV Trailer As A Shelly Smart Home

Christian Hunziker 🇩🇪
It all started with the desire to monitor the temperature in the refrigerator while traveling and the first Shelly H&T. In the meantime, almost 30 Shelly products are in use and have turned it into a real "smart home on wheels".
RV Trailer As A Shelly Smart Home

Door Closed and Locked Monitoring with Shelly BLU Door Window

Beat Frei 🇩🇪
By adding a limit switch to the Shelly Blu Door/Window sensor, I enabled it to detect both closed and locked status. Now, you can check the door's security anytime via the Shelly app, ensuring peace of mind.
Door Closed and Locked Monitoring with Shelly BLU Door Window

Using Photovoltaic Energy for Water Heating 

Bence Harvan 🇭🇺
With Shelly devices, you can efficiently use excess photovoltaic energy to heat water in your home. The system directs surplus energy to the water heater, reducing grid dependence. This setup helps lower energy costs and promotes sustainability.
Using Photovoltaic Energy for Water Heating 

Smart Automation For A Windmill Villa With Pool

Nuno Vicente 🇵🇹
With Shelly I control pool systems, lights, and monitor water levels remotely for my holiday home. Sensors help manage temperature, humidity, and even notify me when the rat trap is triggered.
Smart Automation For A Windmill Villa With Pool
SHELLY APP

Shelly Smart Control is Free!

Download our free app to manage spaces, monitor energy, and track expenses. Upgrade to Premium for even more features!

Discover Shelly app

Integrations

Shelly devices are compatible with multiple protocols, such as MQTT, KNX, REST, HTTP and more!


On top. use your Shelly Devices with your preferred voice assistant like Alexa, Google Home, Android and iOS, or integrate it with IoT Home Automation Hubs and systems like Home Assistant, IoTBroker, Homey, Habitat and more!

Alexa
Google
Home
Home
Assistant
Smart
Things
Homey
MQTT
KNXNet
REST
Webhooks
openHAB
URC
See all
Shelly Compatibility and Integrations