Input filter FEE 3050, 3-phase, class A FEE3050

Input filter – protection and reliability in power systems

The FEE 3050 input filter is a key element ensuring electromagnetic compatibility (EMC) in power supply installations for inverters and drive systems. Designed to operate in 3-phase networks, it effectively suppresses interference, protecting both the installation itself and other devices connected to the same network. The filter's Class A rating guarantees a high level of noise and interference reduction, which translates into stable and trouble-free operation of connected receivers.

Application and benefits

Anti-interference filters from the FEE series, such as the 3050 model, are particularly recommended for use with inverters with a power of up to 22 kW. Their task is to eliminate unwanted components of the electrical signal spectrum, i.e. those elements that do not carry significant information, but only generate interference. Thanks to this, the filter minimizes the impact of devices on the environment and increases the system's resistance to external interference.

• Protection against interference: Reduction of electromagnetic interference improves the stability of inverters and drive systems.
• Compliance with standards: Ensures compliance of the installation with applicable electromagnetic compatibility standards.
• High efficiency: Effectively suppresses both symmetrical and asymmetrical interference currents.
• Versatility: Suitable for use in various industrial and commercial installations.
• Economical solution: It is an optimal choice for applications requiring high interference suppression efficiency at a reasonable price.

Construction and operating parameters

FEE filters are characterized by a solid construction ensuring reliable operation in demanding industrial conditions. An important aspect is the filter's "reciprocity" – its identical suppression effectiveness in both directions (from source to receiver and vice versa), which ensures optimal protection regardless of the nature of the interference. The FEE 3050 filter is designed to operate in power supply networks with a voltage of up to 480V AC and a rated current of 50A, making it an ideal solution for inverters with a power of 22kW. It is important to ensure proper filter connection, paying attention to the power supply side indicated by the manufacturer.