Product Introduction

VIP1-1B-03 is a single-phase 3A EMI power filter with rated voltage of 115/250VAC and an operating frequency of 50/60Hz. It adopts an ultra-low leakage current design, with maximum leakage current of only 2uA at 115VAC/60Hz and 5uA at 250VAC/50Hz. This single-stage filter can operate stably within a wide temperature range from -25℃ to 100℃. It passes rigorous 2000VAC line-to-ground hi-pot testing and maintains insulation resistance higher than 100M ohm at 500VDC. It effectively suppresses common-mode and differential-mode electromagnetic interference on power lines to guarantee safe and consistent equipment operation.

Application & Purpose

This EMI power filter is widely applied to PLC, servo drives, inverters and other industrial automation devices. Its core function is to filter high-frequency electromagnetic noise and power harmonics on AC power lines. It avoids device misoperation and abnormal shutdown caused by power interference, helps finished products pass EMC compliance tests, and supports stable continuous running of automated production systems.

FAQ

1. Q: What effect will mismatched rated current bring to the EMI filter A: If the actual working current exceeds the filter rated value, magnetic core saturation will occur. This will greatly reduce the noise attenuation ability and shorten the service life of the filter.
2. Q: What is the difference between single stage and multi stage EMI power filter A: Single stage filter uses one set of inductor and capacitor circuit with compact size and lower cost, suitable for moderate electromagnetic noise. Multi stage filter adopts multiple groups of filter circuits and delivers stronger noise suppression for heavy interference scenarios.
3. Q: Why does the filter require high insulation resistance A: High insulation resistance isolates the power circuit from the ground terminal. It prevents stray current leakage and insulation breakdown under normal working voltage to keep the filter running reliably.
4. Q: What is the purpose of hi-pot test for power filter A: The hi-pot test verifies the dielectric strength of internal insulating materials. It confirms the insulation can withstand short term overvoltage and avoid insulation failure during long time operation.
5. Q: Can the filter be mounted in a sealed cabinet A: It supports operation from -25℃ to 100℃. It can be installed inside equipment cabinets, but proper ventilation is needed. Continuous operation at the upper temperature limit for long periods should be avoided.