NEC: Outlet Rating on 20A Breaker? Current Per Outlet?

In summary, the NEC (National Electric Code) requires that a 20A breaker can only supply a maximum of 20A to each individual outlet. This means that the current per outlet cannot exceed 20A and the total current draw from all outlets on the circuit cannot exceed the breaker's rating. This regulation is in place to ensure safe electrical practices and prevent overloading of circuits.
  • #1
EM_Guy
217
49
If you have multiple outlets connected to the same 20A breaker, do the outlets need to be rated for 20 A? Or, is it acceptable to have the outlets rated somewhat lower? Where can I find this information in the NEC? If I do not need each outlet to be rated for 20 A, then is the current rating a function of the number of outlets connected to the breaker? If so, what is current rating per outlet as a function of the number of outlets on a single 20 A breaker?
 
Engineering news on Phys.org
  • #4

What is NEC and why is it important?

The National Electrical Code (NEC) is a set of safety standards and guidelines for electrical installations in the United States. It is important because it ensures the safe and efficient use of electricity and helps to prevent electrical hazards.

What does the "Outlet Rating on 20A Breaker" mean?

The "Outlet Rating on 20A Breaker" refers to the maximum amount of electrical current that can safely flow through a single outlet on a 20-ampere (A) circuit breaker. This rating is typically determined by the outlet's wiring and design.

What is the purpose of a 20A breaker?

A 20A breaker is designed to protect the circuit and prevent electrical overloading. It can handle a maximum load of 20A and will trip if the current exceeds that amount, thereby cutting off the electrical supply to the circuit and preventing potential hazards.

How many outlets can be placed on a 20A circuit?

The number of outlets that can be placed on a 20A circuit depends on the total current draw of the devices plugged into those outlets. As a general rule, a 20A circuit can handle up to 10 outlets, but this number may vary depending on the specific electrical load of each device.

What is the current per outlet on a 20A circuit?

The current per outlet on a 20A circuit can vary, depending on the number of outlets and the electrical load of each device plugged into them. As a general rule, the current per outlet should not exceed 15A to ensure the safety of the circuit.

Similar threads

  • Electrical Engineering
Replies
33
Views
554
Replies
5
Views
1K
Replies
11
Views
8K
  • Electrical Engineering
Replies
23
Views
3K
  • Electrical Engineering
Replies
10
Views
3K
Replies
16
Views
2K
  • Electrical Engineering
Replies
5
Views
1K
Replies
22
Views
1K
Replies
7
Views
3K
  • Mechanical Engineering
Replies
3
Views
1K
Back
Top