EMC input filter FLD 3030, 3-phase, class B, for inverters with power 11-15kW FLD3030

EMC Filter for Inverters – Protection and Reliability of the Installation

This three-phase EMC input filter class B is designed to provide optimal protection for inverters with a power of 11-15 kW. Its task is to suppress electromagnetic interference, which can negatively affect the operation of devices and cause compatibility problems. This filter is a key element in ensuring stable and reliable system operation, minimizing the risk of failures and downtime.

Design and Application

Filters from the FLD series are characterized by a solid book-type construction, which facilitates their installation even in tight spaces. They are dedicated to use with long power cables (up to 50m), which is a common challenge in industrial installations. The use of high-quality components guarantees low power losses and long device life – up to 25 years at a temperature of 50°C. This filter finds wide application in industrial installations, drive systems and power supplies, where high resistance to electromagnetic interference is required.

Advantages and Benefits

• High Attenuation: Provides effective suppression of both symmetrical and asymmetrical disturbances, reducing the interference level below European standards (EN 50081-2). In some cases, it allows meeting the more stringent requirements of EN 50081-1.
• Compact Dimensions: Book-type construction minimizes occupied space, making installation easier in limited space.
• Low Leakage Current: Minimizes energy losses and increases system energy efficiency.
• Durable Construction: Ensures reliable operation for a long time, even in harsh industrial conditions.
• Overload Resistance: Withstands short-term overloads (4 times the rated current during switching and 1.5 times for 1 minute once per hour), which increases installation safety.
• Wide Operating Temperature Range: Enables operation in the range of -25°C to +85°C, which provides flexibility of use in various environments.
• Screw Terminals: Facilitate connection of power cables.

Technical parameters of the FLD 3030 model: rated current is 30A, weight is 1.8 kg, and dimensions are 335 x 150 x 305 mm (length x width x height).

EMC filters of the FLD series are an investment in the stability and reliability of your electrical installation. They provide protection against interference, minimize the risk of failures and allow for efficient energy use.