COSEL EMI Filter Distributor | NAC and EAC Series

BeiLuo supplies genuine COSEL EMI filters, the single-phase line filters that suppress the conducted noise on a mains input so a power supply and its system meet the EMC limits. An EMI filter sits between the mains and the power supply, and its common-mode and differential-mode elements attenuate the high-frequency noise that a switching converter reflects onto the line, so the finished equipment passes the relevant conducted-emissions standard. COSEL offers the NAC series, a general-purpose compact filter that mounts on a chassis or a DIN rail, and the EAC series, a general-purpose compact filter with a defined attenuation from about 150 kHz to 1 MHz, both in single-phase 250 V AC and DC versions with a range of rated currents and capacitor codes. The line-to-ground capacitor code sets the leakage current and the attenuation, so a designer can match the filter to the safety limit of the application, and the screw terminals and the DIN-rail option make the installation straightforward. Typical applications include a switching power supply, an industrial control panel, a medical unit that must meet a low leakage limit and a telecom or a test system. Every filter BeiLuo ships is factory-traceable and includes an import declaration, a certificate of origin and a RoHS compliance file. Our FAE team helps you choose the current, the leakage and the mounting.