All Power Vision SMPS have enormous reserves of power by the integrated power boost An easy start of consumers with high inrush currents is guaranteed Also the rapid triggering of low-cost standard circuit breakers thanks to the Top Boost technology is possible for the first time The power supplies are equipped with internal input fuse The use of the devices without the usual fuse for protecting the device saves money & space in your system The three-phase Power Vision switching power supplies are available in three editions The electronics monitor the amount of input voltages, possible phase loss, frequency & phase sequence.