What is a bypass function?
In a UPS scenario, a bypass feature is in essence, a switch between the input and output of the device. It allows the routing or transfer of incoming power to the output bypassing any internal circuitry. The bypass function uses the A/C supply power as its standby source of power. This feature allows power to continue to flow to connected equipment if the UPS system encounters an internal error or overload condition. The UPS system will automatically transfer to the by-pass quickly to ensure that the connected equipment continues to operate.