240 volt, 40 amp relay search...

[AnthonyZ]

After a quick, couple off searches, I've found no such device. It's to be used to preheat a client's steam shower and I need to trigger it via HAI outputs with intermediate relays if need be.. I know that I'm gonna have to suspend my resi mindset for the moment and look at some industrial apps. Anyone able to send me in the right direction? Oh, and yeah, price is an issue but I think it's fair to say the client can afford it if it is a little...um..."exclusive".

 

[paulw11]

After a quick, couple off searches, I've found no such device. It's to be used to preheat a client's steam shower and I need to trigger it via HAI outputs with intermediate relays if need be.. I know that I'm gonna have to suspend my resi mindset for the moment and look at some industrial apps. Anyone able to send me in the right direction? Oh, and yeah, price is an issue but I think it's fair to say the client can afford it if it is a little...um..."exclusive".

Hi,
The keyword you need is "Contactor". Here is an example
Digikey have a lot of others listed. There are probably other (possibly cheaper) sources, but not being in the US I couldn't tell you what they are

Paul

 

[FrankMc]

Hi Anthony

As Paul suggested best to use a Contactor ....I would suggest maybe an Alan Bradley one since your U.S based ...You,ll probably have to drive it from a small "ice cube"relay which can be driven from ther HAI outputs....i use omron ones myself see link....
http://www.newark.com/jsp/level5/module.js...en_US/79371.xml

HTH
Frank

 

[TonyNo]

Here is a nice option.

280V 50A SSR (Solid State Relay) w/AC input

 

[Spanky]

ELK is coming out with a 60 amp, DPDT contactor relay in a metal enclosure designed to be triggered from 120 VAC which can be used with any powerline or wireless appliance module. It should be available in 4 to 6 weeks.

 

[Captain Caveman]

I guess the Elk-9100 is underated for your application?

 

[BraveSirRobbin]

Here is a nice option.

280V 50A SSR (Solid State Relay) w/AC input

This solid state relay should work in your application. Hopefully you don't need any type of motor/inductive starter as this is for a shower steamer (have no idea what you are actually switching).

A couple of notes if you go this route: You need a load attached to switch solid state relays (usually). You should probably mount this on a metal plate in its own electrical box (usually a separate thicker plate mounted on standoffs in a typical electrical box). You need to heat sink this relay to that plate when you mount it meaning sand off the paint on the plate and use heat sink grease. If you don't do this you may have to derate the amperage going through the contacts.

Also, note that the one Tony suggested is 24 Volts DC controlled. You can get THIS Omron brand one that should work directly with a 12 volt output from your HAI system (though more expensive).

 

[TonyNo]

Also, note that the one Tony suggested is 24 Volts DC controlled

That one is actually AC controlled (90-280VAC).

 

[BraveSirRobbin]

Also, note that the one Tony suggested is 24 Volts DC controlled

That one is actually AC controlled (90-280VAC).

Good catch my friend! With that in mind, can you look over the one I selected to make sure I didn't make another mistake?!?
Thanks,

BSR

 

[TonyNo]

That one actually says what it is, so you should be fine.

Input Voltage 5-24 VDC, Max Input Volts 32 VDC, Min Input Volts 4 VDC