Dpst ssr?

[Cpt_Kirks]

Would it make more sense to use two SPST SSR's, or a single DPST SSR to control 2 120V 2000 watt heating elements?

This is for a HLT, so I am looking at just getting to the right temp and holding it.

Which DPST SSR should I be looking at?

 

[physfarm]

It may be easier to manage the heat dissipated off two separate SSR's. Which would be cheaper? My guess is 2 singles.

 

[TheAleMaster]

While I've never priced out a dual-SSR, others have as most recommend going with two singles.

 

[Cliff897]

Would it make more sense to use two SPST SSR's, or a single DPST SSR to control 2 120V 2000 watt heating elements?

This is for a HLT, so I am looking at just getting to the right temp and holding it.

Which DPST SSR should I be looking at?

Well you gotta answer one question first:
How many hot leads will the element run on?
One? Then one SSR
Two? Then two SSRs

 

[Cpt_Kirks]

Well, there are two seperate 2000 watt 120V elements, on two seperate 120V 20A circuits.

Also, it just occured to me that this will require a 40A DPST SSR, since the total switched amperage will be 40A.

 

[jfkriege]

I priced out DPSR SSRs and decided that it would be cheaper to go with two SSRs. Digikey has them for about $80 without a heat sink when I checked a few weeks ago, and I just picked up three singles for $45 shipped with heat sinks.