Mains noise filter SF-32.3M.A1

Network interference filter SF-32.3M.A1 (hereinafter referred to as the filter) is used to protect the power supply circuits of electronic devices from industrial and high-frequency natural interference, as well as to prevent the spread of industrial interference through the power supply circuits from industrial equipment.
    
The filter is connected to the break in the power line. For connection to the mains and load, the filter has two groups of screw terminals.
    
The filter is produced in a non-flammable steel housing and provides for fixing the device with bolts d = 4mm.
    
In accordance with GOST, according to the nature of the occurrence of interference, they are divided into anti-phase and common-mode. The antiphase interference current in the signal wires coincides in direction with the useful signal current. The common mode current has the same direction in the forward and reverse wires of the network.
    
The filter is designed in such a way that it effectively suppresses various types of interference, thereby providing protection against:
– lightning strikes near cables or power lines;
– switching processes when turning on / off a powerful network load;
– current surges when the voltage is turned on/off in the network, accidents at substations;
– interference of switching power supplies;
– interference from powerful engines, generators, etc.