Power module and power distribution system

A power module, comprising:

• an input busbar, an output busbar, an internal protection unit, an uninterruptible power supply, a battery input terminal, and a cabinet having a third accommodation space, a fourth accommodation space and a fifth accommodation space, wherein:
• the input busbar and the output busbar are set as an entirety within the third accommodation space, the internal protection unit is set as an entirety within the fourth accommodation space, the input busbar is electrically connected to an alternating current (AC) input terminal of the uninterruptible power supply through the internal protection unit, and the output busbar is electrically connected to an AC output terminal of the uninterruptible power supply through the internal protection unit;
• the battery input terminal is electrically connected to a direct current (DC) input terminal of the uninterruptible power supply and an external protection unit disposed outside the power module;
• and
• the uninterruptible power supply is set as an entirety within the fifth accommodation space and disposed independently from the input busbar and the output busbar.