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Relay Shelly 3 EM
Relay Shelly 3 EM
Relay Shelly 3 EM
Relay Shelly 3 EM
Relay Shelly 3 EM
Relay Shelly 3 EM

Relay Shelly 3 EM

96.70 120.88 -20%
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Electric energy meter in three-phase and single-phase circuits. Monitor the consumption of the entire installation or the electricity generated from solar panels. 3 independent single-phase circuits can also be monitored. Contactor control functionality allows connection of an external power contactor to drive larger loads.

Example of automation for saving in contracted power: If several high-power consumers coincide and an ICP jump is in danger, program the temporary shutdown of less preferred consumers. Pool treatment plant, air conditioning, oven.

Example in photovoltaic installation:

Charge the electric car or turn on the heating in times of excess photovoltaic production.


Interruptor, pulsador, sensor de movimiento o incluso otro Shelly via Wifi
(configurable desde la aplicación)


google home

home assistant

Wi-Fi connected

Shelly 3EM can be connected to any Wi-Fi network or can operate as an Access Point.

Power supply

Each phase of Shelly 3EM must be 110-230V ±10, 50/60Hz AC

Contactor control

Shelly 3EM has an integrated 10A relay output for contactor control.

Main features

Monophase systems

Shelly 3ЕМ can also monitor monophase electrical systems with up to 3 points simultaneously.

Mobile app control

Turn Shelly 3EM on/off directly from your smartphone or tablet.

You can manage Shelly 3EM’s output from the Shelly Cloud app, MQTT or Rest API.

Overconsumption and overpower protection

Shelly 3EM can automatically turn off the whole circuit if consumption or energy (pre-paid energy option) reaches the set limit.

Product features

Embedded web server

Turn on/off Shelly 3EM’s contactor output directly, without the need of any additional controller or hub.

Sunrise/sunset schedules

Shelly 3EM can automatically turn on/off the power based on the sunrise/sunset hours.

Weekly schedules

Choose a time and create custom daily schedules for your Shelly


Technical Specifications


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By Mihai M. on  26 Aug. 2021 (Relay Shelly 3 EM) :

producto profesional

Aspecto profesional, montage en carril Din, control de consumo y vertido a red por parte de la instalación fotovoltaica. El relé de mando lo tengo conectado a modo de señalización a una pequeña tira led que me indica cuando estoy en consumo < 0 W. Da mucha satisfacción!!!

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