Description
Single-phase line filter for your electronics cabinet
Line or EMC filter is electronics device, that is intended to eliminate electromagnetic interference (EMI) and radio-frequency interference (RFI). It is usually placed on the input mains power supply line into the electronics cabinet. It could also be used on individual components that emit a lot of noise (frequency drives, servo drivers etc.). Simply said, line filter “cleans up” electricity before it enters your device.
There are two versions, one has Y-capacitors at the output and one doesn’t. The Y-cap version has better filtering but higher leakage currents towards ground. Other one has just the opposite – lower leakage currents but worse filtering.
Why is such filter necessary?
- Noise reduction – blocking high-frequency EMI & RMI interference
- Protection from power surges – protects the electronics from transient events on grid
- Improved reliability – reducing noise imrpoves reliability and increase lifespan of electronics
- Compliance with regulation – helps to meet EMC standards to not interfere with other equipment
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