Relay with Electrical water heater solution

Hello everybody

This is the first time I've posted a topic here. So please forgive me if I make some mistakes.
I have an Electrical water heater with capacity 2500W. Now I want to re-design the electrical system of my house with C-bus system. I wonder if I can use L5504RVF20 to control my old Electrical water heater automatically. Line supply voltage of my electric provider is 220 VAC. Please help me with my solution.

Thanks in advance

 

Yes you could use that but it would be easy to use a single pole DIN mount relay if you have a spare output on an L5512RVF.
Noise or hum would be worth considering when selecting a contactor.
If hum is likely to be a problem or you have other heavy loads to switch then the magnetic latching L5504RVF20 would be a good choice.

 

Thanks so much for your help

But I have a question: The load rating per channel of L5512RVF is 10A and my Line supply voltage is 220V. So that the output capacity per channel is around 2200W or less. Does L5512RVF's channel provide enough capacity for my Electrical water heater.

 

No it doesnt.
I was suggesting to use a single pole din mount contactor operated by the 12channel relay.
With consideration to selecting a quiet one.
Or use the 20A CBus unit you mentioned.

 

Let me know if you are still not sure what I described.
I would hate to think I convinced you to use the 10A relay directly to your hot water load.

 

Nope. I've just understanded what you said . But that lead me to another problem. Could you suggest the model of Schneider's contactor you prefer to use. I don't know much about Schneider product range

Maybe that's the last problem I want to ask you today. Thank you

 

I can't say a model right now but yes Schneider would be a good place to look or maybe Hager.

 

Hello Anbvn
From memory I think the one I used was Hager ES220.
It is connected to the electric booster of a solar hot water system.
It is not used often and does have a slight hum.
Hager also does one which is supposed to be hum free ESC225S.
Clipsal also has 4CNT1 contactor.
If you have multiple loads above 10A the L5504RVF20 might be more convenient for you.
Daryl

 

You provided 2 completed soultions for my system. I can design a system which is compatible with 1 water heater or more.

Once again, thank you so much!