Shelly 3EM | 3-Channel WiFi Smart Energy Meter with Contactor Control – 120A (per channel) | Compatible with Alexa & Google Home | Remote control iOS Android App | Solar/Net Metering | No Hub Required
£88.99
Price: £88.99
(as of Jun 10, 2025 23:14:43 UTC – Details)
From the brand
Shelly is one of the fastest-growing IoT brands, delivering cutting-edge automation solutions for residential, commercial, and industrial environments.
Driven by a commitment to fulfill the vision of a happier, safer, and more sustainable lifestyle, we elevate appliance control and energy management to an unparalleled standard.
Easy installation & reliable performance. Integrate Shelly devices with Alexa, Google Home, SmartThings or the Shelly Smart Control App
Lightning Solutions
Smart Facilities
Climate Control
Sensor Security
Shelly 3EM is a Wi-Fi-Smart 3-phase professional energy meter with contactor control with three independent measurement channels up to 120 A each,Contactor control (or load up to 10 (A).Many appliances, homes, and buildings use more energy than they need, leading to energy waste and higher spending. With Shelly 3EM will help monitor electricity usage in real-time.
365 Days of Data storage and Preventive Monitoring – The measurements from Shelly EM are stored in a free cloud for 365 days. When an electrical appliance is damaged, it doesn’t simply stop working,usually, it increases the amount of energy used. Shelly 3EM power monitoring will immediately read the increase in energy consumption and will notify you, saving you additional expenses on repairs or replacement of equipment
Solar Panel Monitoring and Smart & Efficient Car Charger – Keep track of how much energy your solar panels and wind turbines are generating and save effortlessly.Shelly 3EM is developed to monitor one, two, or three phases and allows you to monitor the status and history and the current and past electrical power consumption of your car.
Shelly Customer Service – Shelly is one of the fastest-growing Smart Home brands in the world with devices, providing solutions for the automation of private homes, buildings and businesses. We provide our customers with professional support and a 2 years device warranty
Shelly Smart Control app will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation
Customers say
Customers find the smart energy meter compatible with EcoFlow systems, with one mentioning it integrates well with the EcoFlow Powerstream. They appreciate its energy monitoring capabilities, with one customer noting it can track up to three power feeds.
10 reviews for Shelly 3EM | 3-Channel WiFi Smart Energy Meter with Contactor Control – 120A (per channel) | Compatible with Alexa & Google Home | Remote control iOS Android App | Solar/Net Metering | No Hub Required
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£88.99
John Bailey –
Shelly 3EM + EcoFlow PowerStream
Whilst this is a 3 phase meter, it is equally happy on a single phase system – just link all 3 inputs together. It’s very easy to install, but does require a 240Vac supply – easily found if it’s being installed into a consumer unit. Wi-fi connection is simple enough but will require a smartphone/tablet/laptop etc to get it set up. The Shelly app works well and keeps a log of energy usage for its own graphs. The meter also understands the concept of feeding energy back into the grid (PV etc).This model can also be integrated into the EcoFlow system to control the output of their PowerStream micro-inverters to maximise the usage of “home grown” energy before taking expensive units from the grid. It works well in that respect.
UKInfamous –
Get one if you use a Ecoflow Powerstream!
Monitors energy consumption brilliantly, I bough this as it is now compatible with the EcoFlow Powerstream, no more need for smart plugs, this device monitors whole house consumption and lets the PowerStream micro inverter know what to feed in to the house.
lawrence –
Ecoflow and HASSIO compatable
If you have a powerstream the shelly will allow you to get the true grid pulled watts and you can get rid of all the powerstream plugs ,allows automations with powerstream .this is a must .
Amazon Customer –
Perfect Partner For EcoFlow Powerstream
Slows me to monitor the my home energy usage and works hand in hand with the EcoFlow platform to create automations for energy management
iBearsy –
Works well once I got it wired up
This Shelly 3EM needs to be wired into your main electric distribution board so it really needs a qualified electrician. Once wired in it works well and gives you a lot of information. I’m using it with single phase and so I can monitor up to 3 power feeds. I’ve also paired this with an Ecoflow PowerStream and the Shelly helps to automate the whole system. Very good product once you get it wired in.
Quentin Morel –
J’ai récemment installé le Shelly 3EM pour suivre la production de mon système photovoltaïque, et voici mon retour d’expérience :Points positifs :Installation facile : Le Shelly 3EM est assez simple à installer, surtout avec l’application Shelly Cloud. Il est livré avec des instructions claires, et en tant qu’utilisateur non-expert, j’ai pu l’intégrer rapidement à mon installation solaire.Mesure de la production et de la consommation : Le compteur 3EM mesure non seulement la production photovoltaïque, mais aussi la consommation en temps réel. Jâapprécie particulièrement le fait qu’il permette de suivre la consommation d’énergie sur chaque canal, ce qui est parfait pour optimiser lâutilisation de mon électricité produite.Contrôle bidirectionnel : Le fait que le Shelly 3EM soit bidirectionnel permet de suivre non seulement ce que je produis, mais aussi ce que je renvoie à mon réseau, ce qui est essentiel pour moi.Compatibilité avec Alexa et Google Home : Une autre fonctionnalité très pratique est sa compatibilité avec Alexa et Google Home. Je peux consulter mes données de production et de consommation d’énergie à l’aide de simples commandes vocales, ce qui rend l’ensemble du système encore plus intuitif à utiliser.Application mobile intuitive : L’application Shelly (disponible sur iOS et Android) est très facile à utiliser et offre une vue d’ensemble claire de la production d’énergie, avec des graphiques et des rapports détaillés.Précision et fiabilité : Les mesures sont très précises, ce qui est important pour un suivi efficace de la production d’énergie et pour optimiser ma consommation d’électricité.Points négatifs :Nécessite une bonne connexion Wi-Fi : Comme il se connecte via Wi-Fi, il est important d’avoir une connexion stable pour garantir une transmission fluide des données.Pas d’affichage intégré : Le Shelly 3EM nâa pas dâécran intégré, ce qui signifie quâil faut utiliser lâapplication mobile ou une plateforme compatible pour consulter les données. Cela peut ne pas plaire à certains utilisateurs qui préféreraient un affichage local sur le dispositif.Conclusion :Le Shelly 3EM est un excellent choix pour ceux qui souhaitent surveiller la production et la consommation d’énergie de leur système photovoltaïque de manière simple et connectée. Il offre des fonctionnalités complètes, une installation facile et une grande compatibilité avec des plateformes domotiques comme Alexa et Google Home. Je le recommande vivement à ceux qui souhaitent optimiser leur gestion énergétique à la maison tout en ayant un suivi précis de leur système solaire.
JYA –
This unit is wider than your typical 1-pole circuit breaker.So make sure you have room in your circuit panel (I didnât and so had to return it).Accuracy is not that great and will typically read a couple of watts even when thereâs nothing else plugged in the circuit
PLEIN LES COUILLES –
Fonctionne nickel
Amazon Customer –
Funkar bra. Enda är att manualen kan vara lite otydlig vilken riktning strömkännarna ska monteras.
Stanislav –
Alles top!