Constant duty solenoid temperature question

[TT_Vert]

So I have to replace a temperamental constant duty solenoid in my RV. The replacement unit I had in there before decided to start sticking open (Cheap Chinese ****) so I went out and bought a Cole Hersee 24213 200A continuous duty solenoid. I decided to bench test it and it seems to get much hotter than I'd like although it seems it's w/in specs. I am applying 12V to it w/ no current passing through the contactor and it's getting to about 120F on the top and 100 on the bottom. Operating temp is -49F to 185F so I'm good but the other two solenoids (original and cheap Chinese replacement) never got this hot. In all fairness this does bolt directly to a sheet metal box so it's possible it is sinking a bunch of the heat away while in situ but hot electronics are never happy electronics and I don't need this failing thousands of miles away from home. Any opinions on this? I'm going to let it sit on the bench for at least another 12 hours in the morning when I'm awake in case it goes thermo-nuclear but I'm curious on opinions.

What say you?
Dave

 

[The Cobbler]

Cole Hersee is ( or was) a top notch company. when I was in automotive electrical many years ago anyway.

is it still supplied in the metal can? was the other one that failed in a composite housing?
I would call them and ask what the running temp is /

It is probably well within spec . keep in mind you're energizing an electrical coil and creating magnetism

 

[TT_Vert]

All 3 are metal housings. I do understand the design and that it creates heat but knowing the temp of the other 2 were much cooler is what led me to question this. Perhaps the magnetic field of these two was weak generating less heat. That could also be why they are both not functioning. It'd be odd that both had the same failure MO but possible.

Right in the data sheet it states : Operating Temp: -40° to +85°C. (-40° to +185°F)

I have to assume that is the ambient temp or the component temp.

Dave

 

[The Cobbler]

It does seem warm . maybe try it mounted as you say it might sink a lot of the heat .
good luck with it

 

[ichabod]

Can you check the current flow to the coil. See if that’s in spec.

 

[TT_Vert]

Can you check the current flow to the coil. See if that’s in spec.

Yeah I should have included that last night, it's drawing 500mA which is dead at spec. So it's dissipating ~6W