3FD Control
Mod. 22 - Single-phase mains controller with display
Mod. 33 - Three-phase mains controller with display

Mod. 22
This device, for motor protection, controls that the drop voltage doesn’t exceed the established value, by turning off the relay when it happens.
The maximum and minimum voltage can be set by the potentiometer on the frnt panel.
The display is LCD.

Mod. 33
This unit is designed to monitor a 3 phase supply, one failure phase and a lowering of power supply.The relay allows the motor start only if there are the above mentioned conditions.
The maximum and minimum voltage can be set by the potentiometer on the frnt panel.
The display is LCD.