Cosel YAC EMI/EMC Filters are three-phase, four-wire system filters that provide excellent attenuation performance and suppress conducted noise in the 150KHz to 1MHz frequency range. These filters feature a 55mA maximum leakage current 500V 60Hz (Y-connection) and 500VDC 5MΩ minimum isolation resistance (terminal-mounting plate) at room temperature and humidity. The YAC filters comply with UL60939 (overvoltage category: III, Altitude: 3000m), CSA C22. 2 No. 8 (C-UL) EN60939 (DEMKO) (overvoltage category: III, Altitude: 3000m), and ENEC standards. These filters are ideal for high-power office equipment and energy storage systems applications.