• Overvoltage Protection: Shuts off power if the voltage rises above a safe limit (like 260V) to prevent burning out appliance parts.
• Undervoltage Protection: Disconnects power if the voltage drops too low (like 175V), which can cause motors and compressors to overheat or stall.
• Delay Recovery: Waits for a set time (usually 30 to 180 seconds) after the voltage returns to normal before restoring power, protecting appliances from rapid power cycling.