Can you move electric breaker box?
Answer for USA, Canada and countries running a 60 Hz supply service.
Yes. The NEC requires that your service disconnecting means be as close as practical to where the service conductors enter a building. In a home, your service disconnecting means is the main breaker in the panel.
If you choose to move your panel away from the closest practical location, you must install a separate disconnecting means and make your grounding conductor, grounded conductor (neutral), and grounding electrode conductor (conductor to your ground rods) bonds within that enclosure. You must then isolate your grounding conductor and grounded conductor (neutral) everywhere else. This is where the confusion arises because in homes we are used to sharing the same set of terminals for the ground wires and neutrals.
In this type of installation you must have a ground bar which is bonded to (usually just connected to) the panel enclosure for your ground wires and a separate set of terminals for your neutrals that is isolated (insulated) from the panel enclosure.
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.