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Old 11-06-2011, 03:50 PM   #4
flight-guardian
Junior Member
 
Join Date: Sep 2011
Location: SoCal
Posts: 10
Quote:
Originally Posted by flybouy View Post
That is a very dangerous set up. The contactor needs to be in a NEMA enclosure (metal box) with the proper strain reliefs on the cables. The contacts will arch creating a spark every time they are engaged or disengaged and can cause a fire or explosion. The coil can also burn up and catch on fire as they often do with a little bit of moisture and vibration.
there are strain reliefs not in the picture.

the nema metal box is on my todo list. I didn't realize it was that important. that being said I know tons of guys with contactors and double pull relays that aren't in boxes. the contactor is a closed version so no sparking will escape. and there is little amperage on the lines when the contactor activates...only the clock on the micro and the start-up power on the converter which is pretty low.

but I take it under advisement and appreciate your input. it will be easier in a box as well. the mounting to the ceiling of the converter compartment was a royal pita.

-E
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