What is the recommended wiring diagram for a 125 amp sub panel installation?

The recommended wiring diagram for a 125 amp sub panel installation typically involves using a 2-pole breaker in the main panel, running 4 wires (2 hot, 1 neutral, 1 ground) from the main panel to the sub panel, and connecting them to the corresponding terminals in the sub panel. It is important to follow local electrical codes and consult a professional electrician for proper installation.