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 subpanels can use as little as 50-amp. Double-pole breaker ...

A new installation in general can run anywhere from $100 up to $4,000, depending on the scale of the job. This doesn't exactly narrow it down much, though. Unfortunately, the cost largely depends ...

But how much is a new circuit breaker going to cost you? A new installation in general can run anywhere from $100 up to $4,000, ... (240-volt) 200-amp breaker, which could run you around $250.