Shelly 2.5 - dual channel wifi relay with roller shutter mode

This is my separate video on the Shelly 2.5, taking you through all the features, and functions, wiring and a few use cases. Check the contents at 0:51 if you are only interested in specific section.
My Shelly overview video: • Shelly Overview - What...
Product page: shelly.cloud/shelly-25-wifi-s...
EU store: shop.shelly.cloud/shelly-2.5-...
US store: shopusa.shelly.cloud/shelly-2...

[@L3X369]

Came here to find how to wire 2 sockets, wasn't disappointed. I know I'm a bit late to the party but I didn't even knew shelly existed when I built my home. This is a must have for every smart home out there.

[@nemduma2]

Szia Csongor! This video is just perfect! I was struggling with looking shorter booring Shelly videos to get usefull information without success. This nearly 30 minutes just flew away. :) Thanks for it!

[@sethheinrich10]

I've been trying to figure out what these diagrams mean for days now! You presented it in a super simple way that I could follow! I'm looking forward to more videos!

[@csongorvarga]

Glad it helped!

[@ivankajtor3256]

Köszönöjük szépen! Nagyon hasznos, és rendkívül érthető. Még angolul is. Már rendeltem is egyet. 😀

[@rdy4trvl]

Thank you for the clear and concise wiring diagram! I had planned to use just regular switches but your example with momentary switches won me over. Thanks! (subscribed).

[@MoonlightLobster]

Mate, this is by far and i mean by faaaaar the best video for Shelly relays. Thankyou.

[@MrEl0presidente]

Hands down the best explanation of the wiring, thank you!!!

[@gildaslefur2435]

Great review. You answered all the questions I had about the use of external switches.

[@alanblyde8502]

Excellent narrative I’ve been looking for such a device for our own roller shutters, thank you so much.

[@EduardoReyesDPM]

Thank you for taking the time to explain the wiring and using diagrams

[@csongorvarga]

You are welcome!

[@BirolAkkus]

Thank you for this very clear and very complete review!

[@bjornandersson31]

Perfect video, thanks a lot for the detailed explanation. Keep up the good work!

[@TJACRIJEN]

Excellent video, in a limited time a lot of great information!

[@kobedde]

Great review! I already have several Shelly's in use. Only a 2.5 I still miss for my sunshade.

[@panamafred1]

Thanks for an excellent video. I have been looking for a way to operate a linear actuator and this looks like it is perfect. Thanks!

[@krzysztofpolito5267]

Hello Csongor :) Thank you for this great tutorial, I really appreciate it :)

[@mauro167]

Great video. Perfect for those that are trying "do" things with shelly. Thanks for that

[@csongorvarga]

Glad it was helpful!

[@mretegan]

Excellent video! Thanks a lot for making it.

[@luisma1161]

Great video very simple and very informative. Thank you

[@Casa-vx3nx]

congratulation very good video explanation about Shelly 2.5 Thank you to help on this issue!

[@markocernic8659]

Simply BRAVO ! Perfect explained !! Thanks !!!!!

[@csongorvarga]

Glad it was helpful!

[@MrZeeshany]

thanks for this very clear and step wise instruction vdo. hope you make more like these. probably for shelly dimmer?

Nice video! My shelly 2.5 always reads 0w on load, even when I measure 135W from the multimeter... I have around 50~60 sonoff devices all online and 100% working and they are cheap and good, I bought my first shelly and it hasn't been a pleasent experience.

[@csongorvarga]

Oh, I sorry to hear that. I had no issues with Shellys so far.

[@sonicloud3149]

Well presented vid. Thank you. I’d like to see you do a Shelly Dimmer vid.

[@csongorvarga]

Thanks, will see if I can get some now samples from Shelly.

[@SmartLifeEnthusiast]

Splitting the L-wire on the 2 L-inputs (4:35) shouldn't be necessary, they're both connected via a bus bar internally. They sometimes advise it because the screw terminals can hold less load than the bar, but you'll still be powering both outputs from the same cable (probably with a Wago in front)

[@jamesmaroney878]

I have a 2-speed whole house exhaust fan w/ 4 wires: Neutral, Load, Hi speed (6.5A), Lo speed (3A). I was hoping to wire it like a curtain motor (with close as low speed, open as high speed, and both speeds unable to be on simultaneously). I tried this with a Sonoff DualR3, testing it at first via 2 lights. For each light to stay on indefinitely (unlike a curtain motor), I didn't "calibrate" the motor as the app requested. Once I did that, the DualR3 worked as I had hoped. But after wiring it to the actual fan motor, when selecting either Hi or Lo speed it would start for 1/2 second and then go back to Off. I later found out that this is because the Sonoff, while rated for 15A, will only accept a 1A motor load. Does the Shelly have such limitations as well (motor timer and load limits), or could it possibly work for my situation?

[@kahon82]

Köszönöm ;)

[@demorez5]

i was hoping to find here some tips on how to actually fit this behind a switch with all the stiff cables and 3-4 wago connectors. i was also considering to install it behind the shutter outside, but i don't have enough wires to connect the switches. i barely managed to fit the shelly i3s behind the switches, where i actually used double switch boxes - one of them housing the shelly and the other the wago connectors. i am quite convinced that it is impossible to actually install this in a regular switch box. but any tips are welcome.

[@ferenckonrad9097]

Hello Csongor! I am looking for a similar smart (controllable trough wifi with smartphone) temperature controller relay like Sonoff TH10 but with two controlled circuits. When below MIN then it will turn ON curcuit "A" (heating), then turns OFF when higher than MIN but below MAX. If higher than MAX then turns ON cicruit "B" (cooling). I do the same now with STC-1000 but it is not smart, need to change the temperature on the spot. Is it manageable with this Shelly 2.5? Do you know a cheap thermal controller (nothing special, only indoor use) shelly can operate with? Smartpid m5 mini is too expensive for me, costs 4x more than this unit. I hope you can help me out with this issue. :)

[@randumtasx]

Hi I was wondering if you'd be able to help with a wiring diagram. I'm looking to control a valve that is operated by a dpdt switch. The valve has two wires and opens/closes by reversing the polarity of the switch. Would I be able to do this with the shelly 2.5 via wifi and also still use the physical switch? Any help or diagram would be great!

[@pocat00]

where did you get the momentary switches

[@bassdrive]

Congratulations on a helpful review. How can I get feedback on the condition of the blinds, whether it is open or closed. I think on this principle to drive a pair of garage doors. The garage door automation has a magnetic sensor that sends a status signal, but how do I connect it to the relay?

[@csongorvarga]

Thanks. There is no feedback for this device. This is designed for blind motors with built in limit switches. Those turn off the motor when the limit is reached. This is why I said to set the run time a few seconds longer than the actual time it takes for the blinds to go up or down. So the Shelly powers the motor for a few extra seconds to make sure it is full up or down. The limit switch inside the motor will turn the motor off anyway.

[@hpgurgel]

Great stuff - Is the neutral wire required for this model? I don't have any neutral wires in my house although some switches are on double walls so it can be done if required however this isn't an option for the ones on the internal walls. I have 4 roller shutter motors and some wall switches (some single and some double & quad) for lighting (will need a dimmer for a couple of these) which I am planning to automate. Which models would you recommend please?

[@csongorvarga]

Shelly does not have any model which works without the live wire. So you need to get neutral somewhere. Maybe you can put the Shelly where the shutters are where you have neutral. But than you need to run the switch wires up there. Unless you go full automation and phone control. There are dimmers available as well from Shelly, but I don't know how well they work with bulbs. I never tested Shelly, only dimmers from other makers, and none of them worked well with LED and fluorescent bulbs. Shelly could be different, or you may need to shop around for a proper bulb.

[@BruhMan_5]

I just wired my Shelly 2.5 but for some reason I have power coming out of both my SW and can't control the lights with the physical switch at all. Any reason why?

[@BrianThomas]

I love the detail in your videos. Very well done. I have a question for Csongor or for anyone that can answer it. I'd love to implement these smart relays in my sheds at my house in New England. If you know New England weather it can get pretty cold during the winter and very hot during the summer. Has anyone used these relays outside in harsh temps and how do they respond in real world. I know that they have operating temps of O degrees C / 40 degrees C. Is there a way to keep the relays warm/cool if it's going to be implemented outside?

[@khaledghadban3320]

I use it for lighting my house garden , i live in Sweden.

[@fedge1701]

Hi Good presentation .. Does the Shelly 2.5 need the neutral wired to the unit ?

[@csongorvarga]

Thanks. Yes it does.

[@andrewrowland9095]

Thanks for this. I am thinking of replacing some hopeless switches to my roof vent. They were supposed to have a thermostat and open/close relative to the room temperature and a rain sensor to close the vent when it rains. The thermostat is just terrible and does not perform as I would hope (opening and closing at the wrong temperatures) but the rain sensor is a good story. Can you think of any way to reuse the rain sensor in the wiring of a Shelley 2.5 in roller shutter mode? I was going to write my own home automation to use my heating thermostat to control via wifi when I open or close but was hoping to still auto-close when it rains! Any thoughts?

[@csongorvarga]

I think there are a lot of options, I am not sure which will work best. Commercial sprinkler systems have good rain sensors. Those usually have a cork or other material inside which expand when wet and switches a simple on/off switch. It may work, but could react to rain too slowly. I would also try a zig-zag like PCB rain sensor. Those are available everywhere. Keep in mind that they may not last for long, so install it in a place where it is easy to replace. And if you will use your own home automation you can flash the shelly to Tasmota and use the hidden pins on the back to connect to GPIO0 so the shelly 2.5 can handle the rain sensor as well, does not need a separate device.

[@acejoe5996]

Szia Csongor, köszönöm a videókat, nagyon sok segítséget adnak. Ez alapján kötöttem be a Shelly 2.5-et két egymás melletti konnektorba. Ha és MQTT mellett használom. Kicsit magasnak tűnik a hőmérséklet, 55 C kikapcsolt , 1 relével 65 C , kettővel 70 C, mennyire kell aggódni emiatt ? Köszönöm

[@csongorvarga]

Jo kerdes. Erre meg nincs tapasztalatom. De ugy gondolomha tul magas lenne akkor a sajat szoftvere majd kozbeszol.

[@acejoe5996]

@@csongorvarga Státusz szerint, "temp : normal" de lehet inkább egy PM-et teszek be helyette, már csak a 16A miatt, igaz egy Tv megy róla + egy éjjeli lámpa. De valahogy nehezebben megy az elalvás ha egy -60 fokos vmi van mellettem a falba , tudom túlparázom :D

[@salomonsacal2247]

@csongorvarga Thanks for sharing! a question, if i have a 3 gang switch plate, is there any shelley product? or what do you suggest ? i need 1 shelly 2.5 and 1 shelley 1? for 3 gangs? thanks!

[@csongorvarga]

Yes I am afraid you need two. But check the Shelly Facebook group, new products have came out which I did not see yet.

[@salomonsacal2247]

@@csongorvarga oh great thanks very much for sharing!

[@user-gl2ec7qw1n]

why the two L have to be connected and not only one of them?

[@rainerhassold5764]

Hi Csongor, can you comment on the use of the Shelly 2.5 in Shuttermode with a double switch (two separate buttons, one for up and one for down) that actually are switches, locking in the switched position, not like the spring loaded push buttons you use in the video. These switches are common here in Germany for blinds. Thanks Rainer

[@csongorvarga]

I think that will work as well, because even in shutter mode you can set regular switch mode. Shelly has a Facebook group where they provide support. Probably the best is to ask them to prototype this. I am away from home how, I cannot test it for you.

[@SmartLifeEnthusiast]

Looking at the button types, I see the "Toggle Switch". How would that one work? Would that be a single-switch rolling shutter setup?

[@csongorvarga]

I did not test that. I assume the first press starts the blinds (up or down) and pressing it stops.

[@attilageczi8108]

Szia Csongor! Igazán szuper a kisfilmed. Pergola lemezeit szeretném vezérelni ezzel a megoldással, csak nekem egyenáramú motorom van. Megoldható így is?

[@csongorvarga]

Haaaat, Shelly tud menni egyenaramrol is, 24Vnal kezdodik. Szoval attol fugg hany voltos a motor.

[@attilageczi8108]

@@csongorvarga 24V-os. Csak nagyon speciális a Polaritas váltás.

[@csongorvarga]

@@attilageczi8108 Jogos, az akkor ez így nem fog menni sajnos. Hacsak valami külső relés megoldással, de az már nem fog elférni a fali dobozban...

[@rdy4trvl]

What is the manufacturer/model of the momentary switch you use on your desktop model? I can find momentary Leviton switches (in US) but they appear to be a rocker that indicates up/on, down/off.

[@csongorvarga]

Interesting. My local store sells a lot of Legrand switches, they have a basic line which is very cheap and frankly good enough for the video. I think I have this: pdf.legrandaruhaz.hu/F02187EN-00.pdf. It looks like Legrand has a US store as well, but the lineup is obviously a lot different: www.legrand.us/wiring-devices/light-switches-and-dimmers/residential-switches/c/lgnd031206

[@rdy4trvl]

@@csongorvarga Thanks for the info. I have heard of Legrand but I can't recall seeing it in one of our (US) big box home improvement stores. And thanks for the link to the US store.

[@michalniznik4881]

Hi, can I use DIN version Shelly pro 2 for electric blinds (roller shutter) too?

[@csongorvarga]

I did not user Shelly pro 2, but it looks like it does not support shutters.

[@hassanibakary8042]

why switch is not working , i connect my switch one way to the shelly but is not workin

[@mariansorin12]

Nice video! Is it possible to install this device with a double switch which already controls 2 bulbs? Thanks.

[@csongorvarga]

Yes, I think I have covered that scenario in the video.

[@bssantos1]

Hi, if the shelly crash (like burn) the manual botons keeps working? other qustion... can we open\close all shelly at the same time? tks

[@marianstamateschannel1962]

Yes. Yes.

[@hyperspaced77]

Excellent video! Is it running ok with Google assistant / IFTTT ?

[@csongorvarga]

Yes Google home works. There is no native IFTTT integration for shelly. But you can use the Webhooks service in IFTTT to create a trigger and add the IFTTT webhook in the Actions to one of the URL action in the settings.

[@hyperspaced77]

@@csongorvarga Thank you.

[@hyperspaced77]

@@csongorvarga Sorry if I'm asking a lot. But given that 2.5 has UL certification and the price difference to Shelly 1 is small, it there a reason not to use Shelly 2.5 everywhere?

[@csongorvarga]

@@hyperspaced77 Yes very good point. You are correct. My only point would be that a Shelly 1 has a 16A relay, the Shelly 2.5 only 10A relay per channel. In the past I usually dismissed this difference, as I don't have a lot of devices that draw more than 10A. But there is a reason for this ratings: if you have 16A circuit breakers in your house, the breaker is not going to protect the Shelly 2.5 if there is an over current. With the 2.5 you can only rely on the software over current protection to protect it. These are those "let's hope it never happens" moments.

[@georglinde3910]

Very good explanation ! I'm just wondering, if this shelly is capable to fulfill the following scenario: I have 2 simple 2-way switches (so just 2 terminals per switch), and I want to use the 2 switches to turn on an off a light from either switch. Unfortunatly these switches are not momentary switches and these can't be changed. So in fact I just need only one output, but both inputs (one at either switch). The logic must be something like XOR: S1 ON, S2 OFF: Output ON S1 OFF, S2 ON: Output ON S1 ON, S2 ON: Output OFF S1 OFF, S2 OFF: Output OFF Would this be possible? Cheers, Georg

[@csongorvarga]

I think the only way it would work, if you wire S1 and S2 as 2 way switches and the output goes into the Shelly.

[@georglinde3910]

@@csongorvarga Ok, thanks! So I will check my possibilities...

[@francisxm202]

I think most US houses use solid copper wiring. does the wiring fit in the screw post on the shelly?

[@csongorvarga]

Yes, they have decent size screw posts. I could get two wires into one post as well, although I was using multi core.

[@francisxm202]

@@csongorvarga thank you!

[@fawwazallie7736]

1:33 AM how did I get here???? (Awesome stuff btw)

[@gsuccidesign]

How can you use this Shelly 2.5 to drive a 12v actuator? It's like a shutter (ON - OFF - REVERSE) but needs to be 12v. Can I use a 24v to 12v adapter? Is the wiring the same as shown for the shutter, only without the shutter switch?

[@csongorvarga]

Shelly needs 24V DC at least. But you can use a 24V to 12V adapter on the switched side. But you need two of them.

[@gsuccidesign]

@@csongorvargaThank you for your reply. I could feed the Shelly 110V: but then can I use a 24 to 12 adapter between the shelly and the motor/actuator? Where do I find a wiring diagram for this application? I do not have any switch, this will be controlled only by wifi...

[@gabyxze1]

hello, do you know a is it possible to make a scene that the trigger is the voltage value consumed?

[@csongorvarga]

I am not sure I understand: you can create a scene if the actual power draw in watts goes above, or drops below a certain value. For example if you have a motor connected, and the motor is working very hard you can shut it down. But you cannot create scene based on the power consumption like in watthours or kilowatthours (which is the power consumped over time).

[@ranaway34]

Is the Shelly 2.5 - dual channel can control two shutter rollers? what is the meaning of dual channel in that case? thanks

[@csongorvarga]

Shutter rollers usually have two inputs. One for going up and one for going down. So both channels are used for a single shutter.

[@cristinabajet]

Thank you very much! What if I have a remote control for the shutter?

[@csongorvarga]

You are welcome. The remote will not talk to the Shelly obviously. If the remote controls the blind directly, it will still work. The only downside that the Shelly will no longer know the actual position of the blind. If you lower the blind with the Shelly and pull it up with the remote and want to lower it with the Shelly again nothing will happen since the Shelly thinks the blind is already down.

[@cristinabajet]

@@csongorvarga makes sense. But could I feasibly connect the shelly "directly" to the motor? Thank you!

[@csongorvarga]

@@cristinabajet Yes, that is how it works for me too. A generic blind motor has 3 wires. A common neutral and 2 live wires for up and down. And these accpet direct mains voltage that you can connect direclty to the Shelly. If it has a 4th wire as well, that could be ground (PE).

[@csongorvarga]

But please check your model first, so far I have only seen a few models, and they were all working like that.

[@cristinabajet]

@@csongorvarga thanks!!!

[@909Twodogs]

I am interested in this device but does it work with low voltage DC battery shutters ?

[@csongorvarga]

Yes and no. It can be operated from DC as well, but only 30 - 50 VDC. Do this rules out 12V or 24V, so only 48V DC is possible. I guess that limits its usefulness in DC.

[@t-lm]

redony mozgatasi funkcioban hozza lehet adni a Home Assistanthoz?

[@csongorvarga]

Nem mentem be a részletekbe, de miért ne lehetne. Utána kéne nézni hogy olyankor milyen MQTT vagy HTTP parancsokat kell kiadni, de szerintem biztos lehet.

[@EasyRun74]

Is there a setting, where you can choose if only one switch will be active? . So if sw1 is active and you what sw2 to be active. Then sw1 has to be switched off first, before sw2 can be active. I want to use this shelly with a switch who has 3 states , actually 3 speeds for a fan. Sw1 sw2 0 0 speed low 1 0 speed mid 0 1 speed high 1 1 can not be made

[@csongorvarga]

The window blind mode is exactly like that. Because the blind can either go up (SW1) or go down (SW2) but never both.

[@EasyRun74]

@@csongorvarga aah ok yes thx. But will they switch off after a time, or can it be set to endless instead of the standard 20sec auto off?

[@csongorvarga]

@@EasyRun74 Well, that is a good question. I don't know if you can do that by setting the time to zero. I did not test that.

[@b16bkostas]

if you use the one L as 220 and the other as 24 is that ok?

[@csongorvarga]

I don't think you can mix voltages. So all AC or all DC.

[@bonk841]

Can this work with rf Roller shutter?

[@csongorvarga]

This does not have the RF part. I don't know how your shutter RF receiver is integrated to the actual motor, but the best solution would be if you could connect the Shelly directly to the motor. So the shelly can control the motor directly and you could also use the RF remote for manual control. There are a lot of ifs here and probably a very involved DIY project. Unless the blind motor and the RF receiver/controller is a separate unit, but in most cases it is integrated.

[@stevekerchner7533]

Thank you for the video! I'm trying to use the Shelly 2.5 to control a 3-wire ball valve using 24VDC. The 3-wire Ball Valve requires that the (-) be fixed and the (+) is used on the other two wires to open and close the valve. It looks like the Shelly is setup to use the opposite strategy with the N being (+) and the (-) being used to switch the circuit. Here's a video that claims to connect the two, but the diagram has the (+) connected the ball valve (-) kzbin.info/www/bejne/Z4WngZVviaahjNE. Any ideas? Thanks!