Modular primary distribution contact board

An aircraft power distribution system comprising:

• a power distribution box;
• a generator supplying power to the power distribution box;
• a load receiving power from the power distribution box;
• wherein the power distribution box includes a board supporting plug-in pins receiving power, a contactor supported by the board and configured to selectively provide power to a secondary power distribution connector supported on the board in response to a command, the board including power traces connecting the plug-in pins to the secondary power distribution connector;
• and
• a secondary circuit board supported by the board, the secondary power distribution circuitry mounted on the secondary circuit board.

A power distribution panel comprising:

• a board supporting plug-in pins receiving the power, a contactor supported by the board and configured to selectively provide power to a secondary power distribution connector supported on the board in response to a command, the board including power traces connecting the plug-in pins to the secondary power distribution connector;
• current-sensing circuitry supported by the board and connected to at least one of the plug-in pins and the power traces, the current-sensing circuitry configured to monitor current to the power traces;
• secondary power distribution circuitry supported by the board and configured to provide the command;
• and
• a secondary circuit board supported by the board, the current-sensing circuitry mounted on the secondary circuit board.

A power distribution panel comprising:

• a board supporting plug-in pins receiving the power, a contactor supported by the board and configured to selectively provide power to a secondary power distribution connector supported on the board in response to a command, the board including power traces connecting the plug-in pins to the secondary power distribution connector;
• current-sensing circuitry supported by the board and connected to at least one of the plug-in pins and the power traces, the current-sensing circuitry configured to monitor current to the power traces;
• secondary power distribution circuitry supported by the board and configured to provide the command;
• and
• a secondary circuit board supported by the board, the secondary power distribution circuitry mounted on the secondary circuit board.