This is the on/off switch to the entire breaker panel. A 200-amp breaker is appropriate for a home upwards of 2000 square feet. Smaller buildings can use 150-amp or 100-amp; small homes and ...

However, most homes need larger breakers for more demanding appliances like washing machines and refrigerators. This requires a much more robust double-pole (240-volt) 200-amp breaker, which could ...