2bluewagons
Well-Known Member
Hi all,
Sorry if this has been asked before but search did not turn up info for my exact situation. I am building a relatively compact panel using this enclosure. The design includes two 25A SSRs, each controlling a 1500w element. For dissipation of heat, I am planning on mounting one SSR to the bottom of the nice thick enclosure and the other one to a heatsink mounted to the top of the enclosure.
I have two questions regarding this design:
Is it best if the SSR is mounted directly to the heatsink, requiring me to cut a square hole in the lid? Or is it ok (or better even?) to sandwich the lid in between the SSR and heatsink? I would use thermal grease on all contact surfaces.
How close can I locate the two SSRs? Keep in mind they will be inverted to one another (like Maverick and Goose to the MIG), so would there be a significant amount of heat that would radiate to the internal space of the enclosure with just 25A combined max passing through the two SSRs? Currently my intent is to overlap them just slightly kind like this with just over an inch vertical clearance between height of the terminals:
..heatsink
|.............|
|.............|
|.............|
|________|
........._________
.........|.............|
.........|.............|
.........|.............|
.........|.............|
...........enclosure
Thanks for any help
Sorry if this has been asked before but search did not turn up info for my exact situation. I am building a relatively compact panel using this enclosure. The design includes two 25A SSRs, each controlling a 1500w element. For dissipation of heat, I am planning on mounting one SSR to the bottom of the nice thick enclosure and the other one to a heatsink mounted to the top of the enclosure.
I have two questions regarding this design:
Is it best if the SSR is mounted directly to the heatsink, requiring me to cut a square hole in the lid? Or is it ok (or better even?) to sandwich the lid in between the SSR and heatsink? I would use thermal grease on all contact surfaces.
How close can I locate the two SSRs? Keep in mind they will be inverted to one another (like Maverick and Goose to the MIG), so would there be a significant amount of heat that would radiate to the internal space of the enclosure with just 25A combined max passing through the two SSRs? Currently my intent is to overlap them just slightly kind like this with just over an inch vertical clearance between height of the terminals:
..heatsink
|.............|
|.............|
|.............|
|________|
........._________
.........|.............|
.........|.............|
.........|.............|
.........|.............|
...........enclosure
Thanks for any help