The device is intended for mounting in DIN rail. It is used to control and indicate the consistency, order and phase. The device shows the following malfunction of one or several stages of the order of the voltage stages: Under 10%voltage increase: Over 10%asymmetricity voltage phase: 10%Technical Data Opportunity400V, 50Hz .......... .................................................................................................................................... .................................................................................................................................... .................................................................................................................................... ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... - 85% RHIGHTS OF Activation 10.1 10 seconds indication LED Indication for changing state -of -the -art durability1.000.000 cycle red Havaria -Mechanical durability10.000.000 cycles120g.