19.AF.525-3520 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 19.AF.525-3520 is part of the Combiline EMC Filters series and is designed for three-phase systems. It supports a rated voltage of 400 V AC with a maximum voltage of 500 V AC, and has a rated current of 60 Amps and a peak current of 90 Amps. The filter measures 316 mm wide, 230 mm high, and 305 mm deep, and weighs 32.5 kilograms.
Internal Product Review
The 19.AF.525-3520 is a KEB Combiline EMC filter built for clean, dependable 3-phase power integration. Rated for 400 V AC and 60 A, the design aligns well with demanding industrial drive systems. A 90 A peak current capacity and 30 kW rated power make this filter an excellent fit for higher-load installations.
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Product Description:
The 19.AF.525-3520 is an electromagnetic compatibility filter manufactured by KEB for the Combiline EMC Filters series. Installed on the supply side of a variable-frequency drive, it attenuates high-frequency noise so that surrounding automation devices continue to meet EMC limits. The unit is intended for 3-phase power networks and presents a cabinet footprint of 316 mm width by 305 mm depth while reaching 230 mm in height, dimensions that allow placement beside common drive controllers without exceeding standard panel depths.
The filter is matched to a rated power of 30 kW, which indicates the largest inverter and motor combination that can be connected without derating. Its nominal line voltage of 400 V AC aligns with typical plant distributions, and the core conducts a continuous current of 60 A. Transient overloads up to 90 A are tolerated during braking or acceleration, maintaining stable attenuation performance. Output frequency capability reaches 100 Hz, permitting the connected drive to operate motors above the standard electrical base speed. Although the filter is optimized for 400 V service, its insulation system withstands a maximum network voltage of 500 V AC, offering headroom for utility fluctuations.
Carrier pulses generated by modern inverters begin at a minimum switching frequency of 4 kHz, and the filter’s impedance is designed to block these harmonics from returning to the mains. Internal losses are limited to 190.3 W, a figure used to size panel ventilation fans. The complete assembly weighs 32.5 kg, so mounting brackets must support that load during vibration. Power terminations accommodate copper conductors up to 35 mm², simplifying connection of stiff supply cables and ensuring the rated 3-phase current path remains within allowable temperature rise.
