Installed a new 208 volt photo cell for some parking lot post lights. Tied 120v line to black, and load to red, and white to neutral, and the other 120 volt phase side goes to the other side of the lights. But it is not working. This comes from a 3 phase 120/208 volt panel. So it switches one side of the 2 - 120's. (opposite phases of course). Should be simple. The lights work when I bypass the photo cell. Am I forgetting something? Is there a different photo cell for panels with a wild leg? (208 to neutral).
Sounds like you have let the smoke out of it.... And it sounds like you have a 240 delta panel? What voltage are these lights?
Normally I take a 120 photo cell and operate a 120 coil contactor from it. The photo cell also has a max amperage that you may have exceeded. But it sounds as though your photo cell got 240 though the load from the other leg.
Sorry 'bout all the colors - just messing with the new tool box up there...
