... Automatic Voltage Switch,AVS,Voltage Protector,Power Protector,Sollatek Fridge Guard/Spike Protection//Surge Protection,Multi Guard Model Number: AVS5A, ... off the equipment connected to it if the main power goes outside preset acceptable limits and will re- ... and extra spike and surge capability. Thus, the AVS13RL provides protection against over-voltage, under-voltage, power-back surges, spikes, ...