Filter

This is a CW4L2-20A-S single-phase EMI power filter, an electrical component designed to suppress electromagnetic interference (EMI) and radio frequency interference (RFI) in AC power systems.

Function: Blocks high-frequency noise from entering or leaving sensitive electronic equipment, ensuring compliance with EMC standards. It improves system stability and protects components from voltage spikes and transient interference.

Structure: A compact, metal enclosure with screw terminals for secure wiring and a mounting bracket for panel installation. The internal circuit includes inductors and capacitors to attenuate both common-mode and differential-mode interference.

Performance: Rated for 20A continuous current at 115/250V AC, with attenuation of up to 60 dB at 100 MHz. It complies with CE, RoHS, and UL safety standards, and features a wide operating temperature range of -25°C to +85°C.

Application: Widely used in industrial control systems, medical equipment, and precision instruments, where clean, interference-free power is critical for reliable operation.