Shelly
Shelly EM Relay. Pack with Clamps - Smart Consumption Monitor
Shelly EM Relay. Pack with Clamps - Smart Consumption Monitor
4.6 / 5.0
(5) 5 total reviews
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Shelly EM is an advanced Wi-Fi-powered energy meter designed to provide accurate monitoring and efficient control of your electricity consumption. This device measures the energy usage of household appliances, electrical circuits, and office equipment (such as lighting systems, power lines, security systems, heating, and cooling) on two electrical circuits on the same phase or independently. Its functionality also includes direct contactor control, making it a versatile and practical solution for homes and businesses.
Main features of the Relay Shelly EM :
- Real-time energy metering : Accurately monitor power consumption on two different circuits, ideal for home and commercial installations.
- Solar Power Monitoring : Compatible with renewable energy production systems, such as solar panels, for detailed control of energy generation.
- Heavy-Duty Appliance Control : Manage and monitor high-power devices such as air conditioners, heaters, and industrial appliances.
- Built-in Wi-Fi Connectivity : No additional hubs required, connecting directly to your Wi-Fi network for remote access from the Shelly Cloud app.
- Compatibility : Integration with voice assistants such as Alexa and Google Assistant, and home automation platforms such as Home Assistant and MQTT.
- Compact design : Easy to install in electrical panels or small spaces, with support for current sensors (CT clamps).
Key benefits of the Relay Shelly EM :
- Energy efficiency : Identify savings opportunities by knowing exactly how and where energy is used in your home or business.
- Remote Management : Access and control your electricity consumption from anywhere through your mobile device or automation system.
- Versatility : Ideal for multiple applications, from home monitoring to energy management in small businesses.
With Shelly EM , optimize energy consumption in real time, control high-demand devices, and keep a detailed record of your energy impact, contributing to more efficient and sustainable use.


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Description
Description
With Shelly EM, you can monitor the quality of your electrical network in terms of active power, reactive power, voltage, and power factor. Monitor your facility or home to avoid additional expenses or drastic power outages that could damage your appliances and machines.
Key Features of Shelly EM:
-Energy measurement: two independent measurement channels.
-Current measurement: up to 120 A per channel.
-Controlling a contactor(or charge up to 2A).
-Easy controlthrough the Shelly app, various protocols and platforms, as well as voice assistants.
-No HUB required.
Includes ainternal temperature sensorfor protection against overheating.
Shelly EM canautomatically turn off the entire circuitif consumption or energy (prepaid energy option) reaches the set limit.
Designed to fitto most standard electrical panels and switches.
Integration with other Shelly devicesand support for Android, iOS, Amazon Alexa, Google Assistant, and home automation servers using MQTT, CoAP, and REST APIs.
Total energy monitoring:
Know how much energy your home uses with Shelly EM. The perfect solution for single-phase homes, Shelly EM can make a big difference in your savings by constantly monitoring the total energy in your breaker box and giving you immediate control over your current usage. Connect a contactor to Shelly EM and save energy by automatically turning off non-essential appliances.
Energy consumption analysis for cost optimization:
All the connected electrical appliances that aren't used overnight or the lights that are left on generate unnecessary energy. Smart energy metering will help you identify and eliminate any redundant energy consumption from each connected appliance in your home or facility.
Control of heavy loads with contactors:
In addition to accurate energy metering, Shelly EM allows for contactor control of heavy-duty appliances such as powerful water heaters, hot tubs, heat pumps, and large kitchen appliances. This way, you can both monitor and control the consumption of larger appliances in your home or facility and maximize your savings.
Monitoring and control of solar panels:
Keep track of how much energy your solar panels and wind turbines generate and save effortlessly. Shelly EM provides real-time information on the efficiency of your solar and wind power system, as well as historical data on how much energy has been generated and consumed. This helps you control the flow of energy, making the most of your solar panels and wind turbines. To take it a step further, connect a contactor to Shelly EM, so you can automatically turn off non-essential appliances in your home to save energy.
Preventive monitoring:
When an appliance breaks down, it doesn't simply stop working. Typically, the amount of energy used increases in an attempt to compensate for its operational capacity. Since there's no visible difference in its performance, it could take months before you can identify a problem, leading to inefficiency and wasted energy. However, Shelly EM will immediately report the increase in energy consumption and save you additional expenses on repairs or equipment replacement.
Connectivity
Connectivity
- Wireless/WiFi: Protocol802.11 b/g/n
- Radio frequency: 2400 – 2500 MHz
- Range: Up to 50 m outdoors and up to 30 m indoors (depending on the building materials)



Shelly EM Specifications
POWER | |
---|---|
AC power supply | 110-230V ±10%, 50/60Hz |
DC power supply | No |
SPECIAL FUNCTIONS | |
Contactor Control | Yes – Shelly EM has an integrated relay with a rated current of 2A per output for contactor control |
Roller shutter mode | No |
Device temperature protection | Forks |
Overload protection | No |
Power measurement | Forks |
FEATURES | |
Channels | 2 Channel |
Operational temperature | 0 to + 40 °C |
Device power consumption | < 1 W |
Intelligent On/Off | Forks |
Local and remote control | Forks |
Sunrise/Sunset | Forks |
Weekly Schedule | Forks |
UL Listed option | No |
CONNECTIVITY | |
Wireless/WiFi Protocol | 802.11 b/g/n |
Radiofrequency | 2400 – 2500 MHz |
Range | Up to 50 m outdoors and up to 30 m indoors (depending on the building materials) |
DIMENSIONS | |
Size | 39mm x 36mm x 17mm |
Es el primero que compro y lo quería para que cuando está una caldera de 14 kW no deje arrancar un calentador de agua a la vez. Se pueden programar para todo lo que te imagines. Mandar correos cuando se activa o desactiva. Programar escenas. Etc.
El nuevo relé Shelly EM funciona perfectamente, en substitución del anterior Shelly EM del mismo modelo que ha dejado de funcionar a los 23 meses.
Rapidez y precio.
Trato inmejorable 100% recomendable
Un producto genial! Muy fácil de utilizar