US Patent 10925173 Programmable AC power distribution device

A programmable AC power distribution device includes a control circuit board disposed on a connecting plate. A fixing plate is disposed in a case. The connecting plate is connected to the fixing plate through a coupling member. Thereby, the connecting plate with the control circuit board can be disassembled only by removing the coupling member. When the control circuit board is to be reinstalled, the connecting plate can be easily fixed to the fixing plate through the coupling member. The assembly and disassembly of the control circuit board can be improved effectively, thereby greatly improving the efficiency of the check and repair of the control circuit board.