... Comparative Price 4)Different types for Selec Sollatek,Automatic Voltage Switch,AVS,Sollatek,Voltage Protector,Power Protector,Features: 1) AVS13A: ... delay 2) AVS15A: 15A with 3 minutes standard delayThese will switch off the equipment connected to it if the main power ... surges, spikes, and lighting.3) AVS30A: 30A This product will disconnect if the main power goes outside preset limits (the window ...