A duplex receptacle with two circuits on the same yoke is permitted to have what as a means of disconnect?

In the context of electrical installations, particularly for a duplex receptacle with two circuits on the same yoke, it's essential to ensure that there is a proper means of disconnecting power to both circuits for safety and maintenance purposes.

The correct answer is based on the functionality and safety features of the options provided. A double-pole circuit breaker can effectively disconnect both circuits simultaneously. This is ideal because it ensures that when maintenance or service is performed, both circuits are turned off at the same time, reducing the risk of accidental electrical shock.

Additionally, using two single-pole circuit breakers with tie handles offers another viable option. The tie handle mechanism ensures that both breakers operate together. If one circuit breaker is switched off, the other must be switched off as well. This maintains the safety of the duplex receptacle, ensuring that only one circuit is not inadvertently left energized while the other is de-energized.

Both configurations meet the requirements of the National Electrical Code (NEC), which emphasizes safe practices for disconnection. Thus, the option encompasses two methods of disconnecting both circuits effectively and safely, confirming that the answer is comprehensive and appropriate for the given scenario.