Mitsubishi UVTNA550-05SWRSU05 Description Description Mitsubishi Undervoltage trip.AC220-250/380-450/460-550V, Time delay, 3pole, NF/DSN32AF,63AF Related products MITSUBISHI FR-PU04 MITSUBISHI FR-A540-22K MITSUBISHI FR-A540-15K-EC Mitsubishi FX2N-16EX-ES/UL MITSUBISHI FX0-20MR-ES MITSUBISHI A1ADP-SP