What is defined as the maximum continuous operating voltage for an SPD?

The maximum continuous operating voltage for a surge protective device (SPD) is defined as the Maximum Continuous Operating Voltage (Mcov). This parameter represents the highest voltage that the SPD can handle continuously without experiencing failure or degradation. Understanding Mcov is essential for ensuring that the SPD operates effectively without sustenance damage during normal conditions in the electrical system.

By adhering to the specified Mcov, you can prevent false trips and ensure that the protective device does not enter an unsafe operating zone while facilitating normal power flow. This distinction is crucial for system reliability and safety when integrating SPDs into electrical installations, all while protecting sensitive equipment from transient overvoltages.