Q:

How many watts can a 20-amp breaker handle?

A:

Quick Answer

For standard 120-volt service, a 20-amp breaker can support up to 2,400 watts on a single circuit. However, circuits should not be loaded to greater than 80 percent of their maximum capacity for long periods, which makes 1,920 watts the safe maximum for a 20-amp circuit.

Know More
How many watts can a 20-amp breaker handle?
Credit: Mike Weston CC-BY-2.0

Full Answer

Running a circuit near its maximum capacity for long periods can cause the wiring and connections to become warm and may trip the circuit breaker. If a breaker trips repeatedly, appliances should be moved to other circuits to reduce the load on the affected circuit. Constant overloading can lead to damage and increase the risk of fire.

Learn More

Related Questions

Explore