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⚡ Empower your space with smart energy mastery
Shelly Pro EM 50A is a professional-grade, DIN-rail mounted energy meter designed for precise monitoring and control of two independent single-phase circuits. Featuring 1% measurement accuracy, simultaneous LAN and Wi-Fi connectivity, and onboard memory storing up to 60 days of data, it enables seamless integration with Alexa, Google Home, and the Shelly app—no hub required. Ideal for residential, commercial, and industrial use, it supports advanced automation with scheduling, scripting, and contactor control to optimize energy consumption and enhance smart building management.















| ASIN | B0CH1JW2CW |
| Best Sellers Rank | 2,456 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 1 in Solar & Wind Energy Power Meters |
| Brand | Shelly |
| Customer Reviews | 4.6 out of 5 stars 895 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 03800235268148 |
| Included Components | 1x Shelly Pro EM 50A + 2x 50 A Current Transformers |
| Item Dimensions | 10.9 x 8.5 x 8.5 centimetres |
| Item Weight | 63 Grams |
| Item dimensions L x W x H | 10.9 x 8.5 x 8.5 centimetres |
| Item weight | 63 Grams |
| Manufacturer | Shelly Europe |
| Manufacturer Part Number | 8100 |
| Material | Plastic |
| Model Number | 3800235268148 |
| Number of Items | 1 |
| Number of items | 1 |
| Unit Count | 1 unité |
| Voltage | 55 |
M**E
Good quality but expensive
Works exactly as described and been installed for 5 months without problem.
A**N
Reliable and Consumer Unit compatible
Reliable and Consumer Unit compatible. Fitted multiple units and have had perfect reliability and good accuracy for last 6 months.
C**N
FANTASTIC
I connected one ct clamp to live power in from grid and one to live power in from pv out to grid , I put a plug on mains supply , Works great and seems very accurate . This is one of the best I have tried with a very good app on tablet and phone
S**E
Brilliant!
A fantastic bit of kit. Allows me to control a contactor to remotely turn my hot tub on and off overnight on cheap rate electricity. It also feeds the current power usage into Home Assistant via the Shelly integration. Couldn’t ask for more!
A**N
Perfect for Home Assistant
Added this to monitor two circuits within my home to give me more granular power consumption, works perfectly with the Shelly Home Assistant integration. If you have a bus bar within your distribution board it will probably obstruct it which will mean either cutting down the bus bar so you have free space at the end or installing in a separate box as I have.
S**S
Easy set up, but does not react to other equipment like the 3EM version.
Works very well with lots of information to view and log, unfortunately it was not compatible with other equipment so I had to return it but that no detriment to the Shelly
S**T
Great device
Using this to monitor incoming power and also EV charger power, Home assistant is outputing 2 graphs showing house usage without the EV usage showing, the Monitor cable was a little short so extened it by 3m testing it on a kettle before and after the extension incase of any issues with monitoring over a longer distance, no issues with the 3.6m cable now
P**L
Fantastic works fab A1 smart meter
A1 works fantastic ,great app to use for control working well with ecoflow stream .
C**R
Buena calidad y entrega rápida a domicilio.
El medidor funciona correctamente y la instalación es sencilla. Instalar la aplicación no es muy intuitivo, pero con paciencia lo conseguirás.
"**"
Excellent quality product.
Item worked as described.
K**R
Works great! Just be sure the clamps face the right direction
I had to have the electrician come back as the clamps that go onto the main are hard coded to incoming or outgoing power. I don't know why they built it that way as the signal clearly comes through just fine either way...just negative when it should be positive. It's great to know how much power I'm using and it was very quick to setup with home assistant for automations based on power usage. I've paired it with some outlet meters from Shelly which are working great to know if I'm actively sitting in the office based on power usage for some useful automations.
D**M
Très efficace. Et précis
Fonctionne parfaitement pour contrôler une batterie Marstek venus E
B**B
Simple with many options
Very easy setup either ethernet or wi-fi. Current readings and voltages match closely with my Fluke DMM. I am still experimenting with all the available features. The desktop and Android apps have both worked well. If you are interested in power consumption with the ability to control the load I would consider this item.
Trustpilot
2 months ago
5 days ago