FX3U series power supply units from Mitsubishi. These FX series power supply units are used to add power onto the 5 V and 24 V extension buses when the built-in service power supplies are not sufficient. They are designed to be used with all FX3G and FX3U main units and up to two modules can be added onto the one system.

Mitsubishi FX3U

FX3U CPU's are compatible with existing FX2N expansion modules as well as the new FX3U ADP expansion modules and may be used as a replacement for FX2N PLC's.