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Shelly 3EM is a professional-grade 3-phase WiFi energy meter offering real-time monitoring of up to 3 circuits with 120A capacity each. It features 365 days of cloud data storage, integrated 10A contactor control for load automation, and compatibility with Alexa and Google Home. Designed for homes and businesses, it supports solar and EV energy tracking, enabling smarter energy management without requiring a hub.











| ASIN | B0918NR3YC |
| Best Sellers Rank | 23,262 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Power Monitors |
| Brand | Shelly |
| Connector Type | Screw |
| Connector type | Screw |
| Contact Current Rating | 120 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Contact material | Copper |
| Contact type | Normally Open |
| Country Of Origin | Bulgaria |
| Current Rating | 120 Amps |
| Current rating | 120 Amps |
| Customer Reviews | 4.5 out of 5 stars 2,329 Reviews |
| Global Trade Identification Number | 03800235262214 |
| Included Components | 1xShelly 3EM |
| Item Type Name | 1 |
| Item Weight | 10.8 Ounces |
| Manufacturer | Shelly Europe |
| Manufacturer Part Number | Shelly 3EM |
| Model Number | 3800235262214 |
| Mounting Type | Wall Mount |
| Mounting type | Wall Mount |
| Number of Terminals | 2 |
| Operation Mode | Automatic |
| Specification Met | RoHS |
| Unit Count | 1 stück |
| Wattage | 1 watts |
J**Y
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.
M**E
Works well, easy to install and use
Responsive device, with a decent app and the added bonus that it will integrate with the Ecoflow app (the actual reason I bought it). I bought a separate enclosure for it and wired it into that. Seems to have no problem maintaining a WiFi connection and helps me avoid giving any solar back into the grid.
U**L
Shelly just works......
As always shelly does it again. Works well once paired via shelly app. Works in tandem with ecoflow stream. The good thing is you can use normal two wire power cable with plug on the end and works fine. No need to add to fuse box.
A**R
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
N**.
Works with EcoFlow etc
Works with EcoFlow stream AC pro and EcoFlow 800w micro inverter / 2x400w panels, balcony solar. Easy enough install using a 3 pin plug and 3 amp fuse in the plug. I added a din rail compartment to hold it and put the smart meter in the meter box. I used A ct clamp and put that on the brown live after the meter. It all connected easily through the app using WiFi search to find the unit. Set up the shelly account then added this to the ecoflow account via the app. If the power reading is in the minus figures then chances are you might have the power reading clamp the wrong way round. (if necessary unplug solar). I could check consumption was right as I'm on octopus with a smart mini reader too and the figures differed by 4 watts. Really really pleased.
I**Y
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.
F**E
Worth the money and their TECH Support Team are EXCELLENT.
It does what it says on the box and for the price is good, HOWEVER, this is now a discontinued product by Shelly and isn't available on their website. You can still get support BUT they do recommend you go with the EM-63W Gen3 (W for Wired or T for Tag I think), however you can also use Shelly EM Gen3, Shelly Pro EM-50 and Shelly Pro 3EM-120A and purchase a 50amp CT clam for about £10 rather than using the big bulky 120amp ones! Also got it connected to Home Assistant and the Shelly Mobile App.
L**E
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 .
Q**L
Un compteur d'énergie solaire connecté de haute qualité
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. J’apprécie particulièrement le fait qu'il permette de suivre la consommation d'énergie sur chaque canal, ce qui est parfait pour optimiser l’utilisation 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 n’a pas d’écran intégré, ce qui signifie qu’il faut utiliser l’application 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.
M**X
Ok
Perfekt
J**U
Fiable
Retourne la conso precise de mon cumulus, quasiment en temps reel. Integration a home assistant tres simple. Il m’a aussi remonté un re tour de phase sur mon reseau elec dont je n’avais connaissance. Bref du bon matos
C**M
The perfect "missing link" for Home Assistant integration
Despite shipping from Germany to Australia, this arrived much faster than the estimated date. It has been the "missing link" for my home setup, allowing me to monitor my solar and battery circuits without needing individual plugs for every appliance. The Highlights: - eamless Setup: I had an electrician install it (as required in AU), and the process was quick. It adopted to the Shelly Cloud immediately and integrated into Home Assistant without any fuss. - Highly Accurate: The consumption data is spot-on. There is only a very slight delay, providing what is essentially real-time monitoring for three separate circuits. - Solar Friendly: It’s been perfect for tracking our total energy flow alongside our solar and battery storage. Verdict: If you want a reliable, hub-free way to get professional-grade energy data into your smart home dashboard, this is it. Fast, accurate, and incredibly easy to automate.
C**N
Buen dispositivo, instrucciones poco intuitivas
El empaquetado y envío correcto y rápido, el equipo una vez configurado funciona correctamente y es bastante acertado en cuanto a precisión de la medida. Trae tres pinzas de 120A, la instalación es bastante sencilla, pero hay que tener un mínimo de conocimientos de electricidad para instalarlo. Las instrucciones tanto para instalar y sobre todo, para acceder y añadir a algún sistema domótico, son muy poco intuitivas. La aplicación de Shelly, imprescindible para configurarlo en Shelly Cloud, me dio varios errores y se congelaba constantemente, ahora parece funcionar bien, pero me costó añadir el 3EM a la aplicación. Ojo, porque parece que va a ser discontinuado porque ya ha salido el EM3 3 gen y este ya no aparece en la página oficial de Shelly. En mi caso para añadirlo como meter a un sistema solar de balcón, tenia que ser este modelo. Para añadirlo a la app de Shelly, antes hay que acceder a la wifi que crea el dispositivo, buscando la Ip del mismo que es la del “router” de la wifi, después configurarlo para que se conecte a la wifi doméstica, (ojo, que una vez configurado solo será accesible a través de la wifi doméstica y de la ip que está le asigne), después añadirlo a la app de Shelly a través de la opción “escanear red” poniendo tu red doméstica. Y por último añadirlo a tu sistema domótico… nada intuitivo para personas sin unos conocimientos mínimos.
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