... Different type for Selection Automatic Voltage Switch,AVS,Voltage Protector,Power Protector,Multi Guard Model Number: AVS5A, AVS13A, AVS15A, ... then contact your dealer.In addition to the above protection, the AVS 13RL includes RFI (radio frequency Interference) ... and surge capability. Thus, the AVS13RL provides protection against over-voltage, under-voltage, power-back surges, spikes, and lighting.3) ...