Where must a safety switch be located when considering a motor, starter, and panel that are "within sight" of each other?

The requirement for a safety switch to be located outside and within sight of the motor emphasizes the importance of accessibility in emergency situations. Having the safety switch nearby ensures that an operator can quickly disconnect power to the motor without needing to access the starter or control panel, which could be critical in a hazardous situation. This setup promotes safety by allowing for immediate action in the event of malfunction or emergency.

Furthermore, the phrase "within sight" indicates that the motor and the safety switch should be visible to each other without obstruction, ensuring that the person operating the switch can monitor the motor's status as necessary. This minimizes risk and enhances safety by ensuring that control over the motor's power supply is always within reach and can be effectively managed in real time.

In contrast, the other options would imply potentially inadequate placement of the safety switch. For instance, placing it only between the starter and the panel would not prioritize accessibility in case of an emergency, potentially creating delays that can worsen any incident involving the motor. Therefore, the preferred location for the safety switch is outside and within sight of the motor itself.