What type of disconnecting means can be used for a motor?

A receptacle or twist lock plug can serve as a disconnecting means for a motor because it provides a practical and safe method for energizing and de-energizing a motor during maintenance or operation. These types of disconnecting means not only allow for easy plugging and unplugging, facilitating swift disconnection from the power source, but they also ensure a secure connection that minimizes the risk of accidental disconnection while the motor is under load.

In many applications, especially in portable or movable setups, using a receptacle or twist lock plug is beneficial. It meets the requirements set by the Canadian Electrical Code, which stipulates that any disconnecting means should allow for convenient and safe operation. This allows users to turn off the motor without needing specialized tools or extensive procedures, promoting both efficiency and safety.

The other choices, while they each include disconnecting means used in various applications, do not serve the same level of practical function as a receptacle or twist lock plug for motors in a typical setting. A switch alone may not provide sufficient safety or convenience, particularly in high-power applications. Fuses are protective devices primarily used to interrupt the circuit in case of overcurrent and are not designed as a method for manual disconnection. Disconnecting breakers can also work,