Output filter Du/Dt FSC 3064, for inverters with power 18 - 22kW FSC3064

Output filter dU/dt – inverter and motor protection

The Du/Dt FSC 3064 output filter is a key element protecting inverters with a power of 18-22kW and the motors connected to them. Its task is to reduce voltage surges and electromagnetic interference generated during inverter operation, which translates into increased reliability and lifespan of the entire system. Mounted between the inverter and the motor, it acts as a barrier to harmful impulses that can damage the motor winding insulation or disrupt the operation of other devices.

How it works and why is it important?

Inverters, during transistor switching, generate short-term but high voltages – so-called dU/dt overvoltages. These overvoltages can cause degradation of the motor insulation, leading to failure. The dU/dt filter limits these voltage spikes, thereby protecting the motor from damage. In addition, the filter reduces leakage currents and electromagnetic emissions, minimizing interference in the electrical installation. This improves not only reliability but also the electromagnetic compatibility of the entire drive system.

Specification and application

The FSC 3064 filter is specifically designed to work with inverters with a power of 18-22kW. Its compact dimensions – length 200mm, width 150mm and height 65mm – allow for easy mounting even in limited space. The use of the filter is particularly recommended in industrial applications where reliability and continuity of operation are crucial. It is worth remembering its role in protecting against interference in the power supply network and ensuring the correct operation of sensors and other control devices.