I want to connected an LED at the output of 500V DC. This DC power supply is made by 3phase DC rectifier and is floating.
I would like to have a display on the front panel of the supply which will show the supply is healthy.
I know that it could be done by voltage divider circuit and connecting LED across the one of the resisters. I want to know whether it is safe as per the safety point of view because in this case I need to bring connection to the front panel and if a fault occurs with chassis (grounded,) it would put high voltage on the chassis.