Description: 【Material】: Constructed with premium metal materials and thickened copper foil to ensure durability and reliable performance in demanding environments 【Function】: Effectively suppresses both external electromagnetic interference from the power grid and internal high-frequency noise generated by electronic devices, providing clear audio and stable power supply 【Wide Application】: Widely used in precision measuring instruments, building automation systems, elevators, variable frequency drives, lighting equipment, communication devices, automotive electronics, and more 【Features】: Features an inductive low-pass filter design that delivers outstanding filtering results for both common-mode and differential-mode interference across a broad frequency range (10kHz–150MHz) 【Easy Installation】: Maintains stable operations under continuous use with 25A current rating; easy to install at the power entry point of your device for optimal noise reduction Specification: Material: Metal Size Chart: 9.5cmx2.9cmx2.6cm/3.74inchx1.14inchx1.02inch Package Includes: 1 Piece 25A Power EMI Filter Board Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.