Input filter FEE 3006, 3-phase, class A FEE3006

EMI Filters for Inverters – Protection and Reliability

The FEE 3006 input filter is a component dedicated to reducing electromagnetic interference generated by inverters and drive systems. Its task is to ensure compliance with EMC (electromagnetic compatibility) standards and protect both the inverter itself and other devices in the installation from the negative effects of interference. Class A, to which this filter belongs, indicates its intended use in industrial applications, where the level of interference is usually higher than in a residential environment.

These types of filters work by eliminating unwanted components of the electrical signal spectrum, suppressing both symmetrical and asymmetrical interference currents. The effectiveness of the filtration is measured by the insertion loss expressed in decibels (dB). The FEE 3006 filter has been designed to minimize interference emissions in the frequency range from 150 kHz to 30 MHz, which is crucial for meeting safety requirements.

Characteristics and application of the FEE 3006 filter

FEE EMI filters are characterized by simple installation and high durability. They are designed to work with inverters with a power of 1.5 to 2.2 kW and a rated current of 6A. This ensures optimal protection for devices of this power. The filter design allows operation at temperatures from -25°C to +85°C, and the permissible overload current is 1.5 times for 1 minute per hour and 4 times during switching. The IP20 degree of protection provides basic protection against accidental contact.

The installation of the input filter is an important element in improving the reliability of the entire drive system. Reducing interference translates into more stable operation of the inverter and minimizes the risk of damage caused by overvoltages or disturbances in the power supply network. The FEE 3006 filter finds application in a wide range of industrial applications, such as:

• Electric motor control systems
• Industrial machines and equipment
• Power supplies for sensitive electronic devices
• Applications requiring compliance with EMC standards

Construction and operating parameters

FEE EMI filters are characterized by low temperature increases and low leakage current. These are important parameters affecting the efficiency and safety of use. It is important to select the filter correctly for a specific application and to follow the manufacturer's recommendations regarding installation and operation. The FEE 3006 filter is designed for three-phase power supply with a voltage from 380V to 480VAC and a operating frequency of 60Hz. It provides high attenuation of symmetrical and asymmetrical interference components, which translates into stable operation of the electrical installation.