Shelly em Smart Energy Monitor - Wiring Guide

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How to wire up your Shelly em Engery Monitoring module. This videos takes you through connecting power to the Shelly em as well as connect two energy metering clamps ready for installation.
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Shelly EM is a Wi-Fi-operated energy meter with contactor control. It allows you to simultaneously monitor the consumption of any home appliances, electric circuits, and office equipment (lights, power lines, security systems, heating, cooling, etc.) in 2 circuits on the same phase or individually. Shelly EM is perfect for measuring solar energy production, monitoring household consumption, and controlling heavier-load appliances.
#shelly #smarthome #energymonitor

Опубликовано:

16 сен 2024

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Комментарии : 38

@alistairlambert3275 8 дней назад

Thanke Pete, I bought the Shelley 3EM so the inputs are slightliy different but thanks for the crimping and wiring lesson, worked really well.

@Builtbypete 8 дней назад

I'm glad it was helpful. Theses Shelly's are great.

@alistairlambert3275 8 дней назад

@@Builtbypete How does this work when people have solar and batteries? The wire showing the load into the house is going to show minimal electricity. Do they connect to a different wire, and where would you find it?

@Builtbypete 8 дней назад

I guess it depends on setup. If the batteries and or solar get to the house via an inverter, then you could put the sensor son the output of the inverter. Or if the house has a cross over switch you could put the sensors on the output of the cross over.

@alistairlambert3275 4 дня назад

The problem with these systems is they are all trying to do the same thing job and compete. I’m getting a heat pump installed so I will use the Shelly to monitor load and hopefully use it with my Ecoflow system to direct some solar power towards it.

@Builtbypete 4 дня назад

Sounds like a good setup 👍

@jensschroder8214 Год назад

The Shelly 2EM is suitable for split phase at an angle of 180°. Then you need to twist one current clamp around. But the Shelly 2EM is not suitable for three-phase current with an angle of 120°. Then you can use the 2EM to monitor two currents on the same phase. The Shelly 2EM distinguishes consumption and feeding into the grid from electricity.

@akhan999 11 месяцев назад

Strange my comment has been deleted. Wanted to know can this be done directly in garage we’re the power comes into the main fuse and red and black wire going to the meter? And also be plugged directly into wall socket?

@Builtbypete 11 месяцев назад

Hi. Not sure what happened to your other comment. The placement of the Shelly depends on what you want to measure. If it's the whole house then you need to put it on the positive tail comming out of the meter. Just the positive not both.

@akhan999 11 месяцев назад

Also can the Shelley be plugged in directly to socket? I don’t have consumer unit in garage? And yes I want to measure whole house

@Builtbypete 11 месяцев назад

@@akhan999 You can power a shelly from a plug socket. I would put a 2amp fuse in the plug.

@Builtbypete 11 месяцев назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-77Df_yhanvg.html

@akhan999 11 месяцев назад

Thank you so much for responding quickly

@mdemdemde Год назад

Do you know if it is possible to cur the cable of the clamp to reduce its length or will it make the clamp bad?

@Builtbypete Год назад

It should be fine, but you could always shorten the lead if needed.

@mdemdemde Год назад

@@Builtbypete Thanks!

@Builtbypete Год назад

Your welcome. Maybe test it. You could look at the readings with the wire coiled and then without. I might so some testing on mine as well.

@simps100 Год назад

Hi, I want something like this to monitor my washer / dryer energy usage to create automations so it wouldn’t being going into a consumer unit - would this setup be OK if the Shelly it’s self was put into a protective box? I like this thought of something like this completely separate and not changing the washers wiring atall

@Builtbypete Год назад

Hi. You can monitor individual devices, but you would need the clamp to be on the live feed only to get accurate measurements.

@simps100 Год назад

@@Builtbypete thank you - I’m not concerned about it being 100% accurate just really want to know if it’s drawing power or not so I guess it being over the machines power cord should be ok for that purpose?

@BenCos2018 Год назад

@@simps100 never works great to do that tbh they cancel out if you do that and the readings are pretty much useless easier would be to make a box with a socket and a plug where the shelly is mounted inside

@Builtbypete Год назад

Ben is right. The live and the neutral are 180 degrees out of phase so a clamp over both wouldn't see anything. If you want to only know if the device is on and not how much power it's drawing then you could use a smart plug and have it integrate with a smart home hub if you have one.

@ITB_News Год назад

Any way to power this via a battery pack using USB into the battery but wired like you have into Shelly EM ?

@Builtbypete Год назад

Hi. These Shelly units are powered by 120 / 240 V AC. I'm not aware of a way to power it via DC unless via an inverter.

@ITB_News Год назад

@@Builtbypete ahh that's a pitty, looking to replace my aging Wattson energy monitor...

@Builtbypete Год назад

Oh right. I seem to recall a raspberry Pi project somewhere for energy monitoring. You could certainly power that from a battery.

@samip537 Год назад

What tool set are you using?

@Builtbypete Год назад

I just bought myself a cheap generic crimping kit off ebay

@akhan999 11 месяцев назад

How do you know if you need 50A or 120A?

@Builtbypete 11 месяцев назад

Have a look at your meter tails. See if they are 25 or 16 mm squared.

@akhan999 11 месяцев назад

Hmm no idea how to measure that. Maybe I need an Electrican although since I don’t need to go into consumer unit thought it would be doable myself

@akhan999 11 месяцев назад

The diameter seems to be 11mm, and 50A clamp internal diameter is 10. So maybe best to get 120A

@Builtbypete 11 месяцев назад

If the tail is a 25mm squared then the diameter of the copper cores is about 5.6mm. so another couple of mm for insulation would get you to about 10 or 11mm. So my guess would be you have 100A 25mm squared meter tails.

@akhan999 11 месяцев назад

Thanks I’ll get the 120A appreciate all the help. Excited to get this up and running and in my home assistant dashboard