Why are surge protectors critical in motor applications?

Surge protectors are critical in motor applications primarily because they shield motors from voltage spikes. Motors often operate in environments where electrical noise and sudden changes in voltage can occur, such as during startup or shutdown, or due to external factors like lightning strikes or switching of nearby equipment. These voltage spikes can cause significant damage to the motor's components, such as insulation breakdown, winding damage, or even complete failure. By using surge protectors, these transient voltage events are mitigated, ensuring that the motor operates safely and reliably, thereby protecting both the motor and the connected equipment from potential harm. This protective measure is essential for maintaining the longevity and proper functioning of motors in various applications.