I have a lighting contactor that needs a control transformer. It is 120v coil and only 277v is avaible.
I cannot find any info on the contactor itself as to what the coil draw is. I also checked all the rest of the contactors we got around the shop of various brands and found no info.
Spent some time on yhe Square D website and got some numbers so I have something to work with.
That took a few hours of hunting and downloading, so I wonder if there a rule of thumb for this sort of thing?
Last but not least, I have to ground one side of the 120 secondary right?
many thanks
