wiring an Eaton 200 amp box adding a 30 breaker. need to know where the neutral is connected
The neutral or white wire goes to one of the silver busses in the panel. If this is a main panel it won’t matter which one if a sub panel one will have all the white wires the other will have all the bare or green wires follow what they did before. 120v 30 amp is not a common residential circuit you are using 10 gauge wires I hope. And the device will be listed?