Mitsubishi UVTSA550-05SVLSU30 Description Description Mitsubishi Under voltage trip. AC 250/450/550V, 0,5/1,0/3,0 s, Synch, Left, Terminal. Related products MITSUBISHI FR-A540-22K Mitsubishi FX2N-48ET-ESS/UL MITSUBISHI FR-PU04 Mitsubishi FX2N-48ER-ES/UL MITSUBISHI FR-A540-0.75K-EC MITSUBISHI A2NCPU