LCR's 3 Phase EMI filters (RFI filters, EMC filters) are typically used in Power Electronic products. These EMI filters attenuate mains-borne EMI generated back into the power line. LCR's 3 phase EMI filters also protect sensitive electronics and make them less susceptible to surges, Electrostatic Discharge (ESD) and other harmful voltage and current surges. Typical applications for these EMI filters (RFI filters, EMC filters) are in three-phase industrial drives, controllers, frequency converters and industrial machine tools.
Other applications include industrial power supplies, UPS, fixed computer systems (mainframes), MRIs and X-Ray equipment, Heavy duty industrial equipment and more.
LCR offers the following 3 phase EMI filters (click for PDF):
The following specifications cover LCR4310 series 3 Phase Filters from 5 Amp through 125 Amp. For specific needs LCR manufactures these filters over 125 Amp and up to 2,000 Amp, if required.
Electrical Specifications
Rated Current: 5A – 125A
Maximum Operating Voltage: 440VAC at 50/60 Hz
Dielectric Withstand Voltage (Hi-pot):
Line to Line: 1,700 VDC
Line to Ground: 2,250 VDC
Leakage Current
Leakage Current=Mains Voltage / Xc (Reactance)
where Xc = 1 / (2 X 3.1416 X Mains Freq Xx SCy(uF))
LCR can customize these filters to meet customer’s specific needs / unique requirements. Should you not find a filter suitable to your needs, please contact LCR or call us at 1-800-527-4362.
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