The Z1 Sine Wave EMC Filters series is a line of line-side filter units designed to reduce harmonic current distortion on the main supply network in drive applications.
The series is used ahead of frequency inverters or other equipment with B6 rectifier front ends and is intended to draw a more nearly sinusoidal input current while improving power quality on the supply side. Across the series, units are available for multiple voltage classes and power ranges, with high efficiency, IP20 open-type construction, and the ability to reduce THDI to low levels when installed under the specified network conditions. The design also emphasizes lower voltage drop than a conventional line choke, reduced capacitive current during no-load operation, parallel capability for higher power applications, and operating stability during load changes. These filters are suited for industrial installations that need compliance with harmonic standards, protection against supply-side irregularities, and improved operating conditions for connected inverter systems.
