Hey!
I have two panels about ready to ship. I calculated the thermo load when sizing the enclosure but I am worried they are both still getting a bit warmer then I like.
One has a PLC, touch panel and such in it ... the other has 12 contactors in it.
One panel measures 36 x 36 x 8 (contactor panel) ... the other 36w x 48H x 12D.
These are going inside a protected climate controlled building.
So, I found a fan (120 mm ... quite with good air flow) ... and a louvered 3R grill (about twice the size of the fan opening).
Now, where to put them ...
I am thinking the fan should blow in and be low ... with the vent high?
I could also put the vent low and suck the air out high.
Or???????
I have always avoided putting in a fan, but I had the contactors on all day and they are measuring 130 deg surface temp on their coils (hottest spot ... low temp near the top of only 80 deg). This is with the door of the enclosure open and no load on them (not that it will generate any heat).
Any advice would be greatly appreciated.
Thanks!
I have two panels about ready to ship. I calculated the thermo load when sizing the enclosure but I am worried they are both still getting a bit warmer then I like.
One has a PLC, touch panel and such in it ... the other has 12 contactors in it.
One panel measures 36 x 36 x 8 (contactor panel) ... the other 36w x 48H x 12D.
These are going inside a protected climate controlled building.
So, I found a fan (120 mm ... quite with good air flow) ... and a louvered 3R grill (about twice the size of the fan opening).
Now, where to put them ...
I am thinking the fan should blow in and be low ... with the vent high?
I could also put the vent low and suck the air out high.
Or???????
I have always avoided putting in a fan, but I had the contactors on all day and they are measuring 130 deg surface temp on their coils (hottest spot ... low temp near the top of only 80 deg). This is with the door of the enclosure open and no load on them (not that it will generate any heat).
Any advice would be greatly appreciated.
Thanks!