New Industry Products

New Compact Three-phase EMI Filters from LCR Suppress EMI Emissions

November 07, 2011 by Jeff Shepard

LCR Electronics announced that it now offers the 096C series filters for high current three-phase applications. The 096C series features high inductance common mode coils to increase filter attenuation performance.

Designed to handle currents from 250 to 800A at 50°C, these filters are well suited for high current applications such as solar and wind power inverters, uninterruptible power supplies (UPS), battery chargers, CNC machines, injection molding and electrical discharge machining (EDM) equipment.

High current filters are traditionally designed with single turn common mode coils. The 096C series filters feature multi-turn coils to increase common mode inductance and increase the filter attenuation capabilities to suppress EMI emissions generated by high current switching devices from 100 KHz and up. These filters are in compliance with all safety and environmental requirements of UL1283 and IEC 60939.

The 096C series is rated 600Vac line-to-line or neutral for dc to 400 Hz applications, with low leakage current to ground. These filters are designed to withstand 2,250Vdc line-to-line or neutral, 2,800Vdc line-to-ground test voltage and 140% of the rated current for 15 minutes.

Higher current and optional liquid-cooled filters for applications with high ambient temperatures are also available.