Device to Switch 24V AC

[rog 2]

Hi All,

I am looking for a switch which is able to get 230V as power (I am fine with that) but is able to switch 24V AC.

As far as the specification of Fibaro goes, their switches handle DC only when it comes to lower line-in power. I lost two of the modules already. So, any experience for a switch in such an environment. It is about a valve which is operating on 24V AC

Thank you

Roger

[jakub.jezek 372]

Hi @rog,

 

From Fibaro product range, there is only FGS-2x2, but like you said, you need Live In. I don't know about Z-Wave device that input is 230V and Out 24V DC.

 

I would go with Fibaro Switch 2 (FGS-2x3) and use contactor, which means external power supply for 24V.

 

Regards,

Jakub

[Vinisz 15]

I use an ETH008 relay board for that, I have 24v AC solanoids (5 of them) for watering the garden

[rog 2]

@jakub.jezekThe Fibaro switches need 230V power source (no problem in my case) but I need to be able to switch 24 AC - they only do DC and they get destroyed.

@Vinisz I have the same challenge to solve (watering the garden, the valve have 24V AC). How do you integrate the ETH008 into your Fibaro environment?

[Vinisz 15]

With a virtual device, very very easy, I can send you the lua code if you want, or an example VD

Edited May 30, 2018 by Vinisz

[jakub.jezek 372]

@rog, what kind of valve you want control? For Heating, Watering, ...?

 

If Heating kind, would not be easier (and maybe cheaper) to change accurator for 230V AC version?

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In any "low voltage" case, i would probably go with 24V DC device. Qubino seems to be sollution for ON/OFF control:

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[Jamie mccrostie 82]

@rog

You know you can use either a fibaro double switch 2 or fibaro double relay and then slave another dumb relay more suitable for the 24v ac load off each fibaro contact set.

I do this for many different loads as fibaro switches and relays generally only switch resistive loads.

As always your mixing voltages in your control box so you need to be careful with physical seperation and care with cable routings between the two voltages.

I see now this is what @jakub.jezek suggested in his first post.

Edited May 30, 2018 by Jamie mccrostie

[rog 2]

I guess that the problem is more around a possible power spike on the transformation side. Most probably I am going to go to the primary side and control the 230V input

Thank you

[Jamie mccrostie 82]

2 hours ago, rog said:

I guess that the problem is more around a possible power spike on the transformation side. Most probably I am going to go to the primary side and control the 230V input

Thank you

 

If the secondary side is fused correctly that shouldnt be a problem

If rhe contacts have welded give the module a smack with a screwdriver, that may give it a second life

Edited May 31, 2018 by Jamie mccrostie

[rog 2]

Well, I have not seen anything obvious on the module. It just stopped working, I cannot reset it, include it again. Nothing. no reaction.

As it is not the first one which went south when I controlled non 230V AC and this is the only setup the actually fail (all the other modules work fine), this has to be the issue

[Vinisz 15]

If you are worried for mixing voltages, with the ETH008 I don't have that problem, the relay board itself is powered by a 12v DC adapter so there is no 220v directly connected anywhere within the board.

[Jamie mccrostie 82]

6 hours ago, rog said:

Well, I have not seen anything obvious on the module. It just stopped working, I cannot reset it, include it again. Nothing. no reaction.

As it is not the first one which went south when I controlled non 230V AC and this is the only setup the actually fail (all the other modules work fine), this has to be the issue

Moisture?

[rog 2]

No. They are in a dry place and well packaged. I have other switches doing 230V switching at similar place and they work without issue

[Jamie mccrostie 82]

Weird, a fault on the switched load wouldnt effect the modules opperation out side its switch contacts if it was on a different voltage.

I also personally think switching a 24v ac valve coil would work without any problems with relay but possible as ive said out side fibaros spec.

Hey but as you said they dont go so somethings no right

[rog 2]

Just an update: I went to the primary side of the transformer and since then it works like a charm (after having burned 3 switches on the secondary side)

[andyb749 4]

The Fibaro Relay FGS-212 will do what you want.   It has a volt free relay contact that will switch 10A resistive at voltages up to 240V AC.   If switching an inductive load, then the 10A is derated.

[Nadeem 2]

Hello

Anyone found Zwave 24v AC input and 24v AC ouput Relay module for EU region.
pls share here details.

[Tim__ 126]

Easiest way to solve switching 24V AC is by using a slave relay (or relay board) connected to a Smart Implant (which can run on 12V DC from plug pack).

[Nadeem 2]

thanks for your answer but Actually i want to find relay module which is fit into backboxes as i dont have much more space or cant be installed in open area any new device.

i am looking for 24v AC input (L,N) and output port to have 24v AC 

Edited December 18, 2024 by Nadeem

[Martin_N 154]

@Nadeem

It might help if you were more specific, maybe even attach a photo of the place where you want to place the device, some maximum dimensions,...

Instead, are you asking the same (equally strict) question in three threads?

Please include a photo, write the type of device you have.

Often the questioner does not realize all the connections and a new perspective from an unbiased person can help.

Isn't it possible to place the switch outside the device and connect only two wires to the box?

[Nadeem 2]

Sure Below are images which i am using it 
its from smart apex brand which has inputs 

Now Here in my Case i have 2 Compressor Valves but as per switches i can only connect 1 or together in 1 output 
From AC machines wiring has been done till switch panel for 2 individual valves control.

i want to use small relay to connect 2nd compressor and i can make scenarios as per temperature setting to work.

i hope this clarification will be enough for everyone to understand my case and provide solution 

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/monthly_2024_12/image.png.a454a3687396931444eb1e281fde4e25.png" />WIRING FROM AC MACHINE HAS 24V AC L,N,VALVE1,VALVE2, FAN L,M,V POINTS