Legality

It is generally not legal to serve multiple circuits off of one circuit breaker in most electrical codes, including the National Electrical Code (NEC) and the Canadian Electrical Code (CEC).

Exceptions

There may be exceptions in certain cases, such as:

Panelboards

Panelboards are specifically designed to distribute power from a single circuit breaker to multiple branch circuits.

Ground fault circuit interrupters (GFCIs)

GFCIs are allowed to protect multiple branch circuits as long as they meet specific requirements, such as having a rating for the total load of all circuits combined.

Maximum Number of Circuits

The maximum number of circuits that can be served by a single circuit breaker depends on several factors, including: Type of circuit breaker Amperage rating of the circuit breaker Load requirements of the circuitsIn general, it is not recommended to serve more than three circuits off of a single circuit breaker.

Consequences of Overloading Circuits

Overloading circuits can lead to a number of hazards, including: Tripped circuit breakers Overheated wires Electrical fires

Recommendation:

For safety reasons, it is strongly recommended to follow the specific regulations and limitations outlined in the applicable electrical code when installing electrical circuits. If you are unsure about the legality or safety of a specific installation, consult with a qualified electrician. Flag for review