





🔇 Silence the static, amplify your productivity!
The JREle CW4L2-20A-S Noise Suppressor Power EMI Filter is a single-phase line conditioner designed for professional-grade equipment. Rated for 20A current and dual voltage (115/250V AC), it operates reliably across a wide temperature range (-25°C to +85°C). Ideal for labs, medical devices, and automation systems, it significantly reduces electromagnetic interference to enhance device stability and longevity. Ground connection is critical to achieve maximum filtering efficiency.
| Customer Reviews | 4.3 out of 5 stars 122 Reviews |
W**R
Solved my problem. Your mileage may vary.
I ran power to my garden shed via a Ground Fault Circuit Interrupter/Arc Fault Circuit Interrupter (GFCI/AFCI) breaker in the load center at my house. I was having trouble with the arcing of the brushes in my compound miter saw tripping the breaker. I placed this filter between the power saw and the outlet in the shed and it stopped the tripping of the AFCI breaker. It makes sense since the purpose of the AFCI is to remove power in the event of an arcing wire connection. Apparently the internal circuitry of the AFCI breaker sees the normal arcing of motors with brushes as an arcing wire.
D**I
excellent suppression of interference from treadmill
Every time the treadmill in our house was in use, broad-spectrum severe interference was generated that made radio reception difficult. I am a ham radio operator and radio listener and it was enough to be a show-stopper under some circumstances. The treadmill in question is a NordicTrack 2150, but the manufacturer sells these (or some variant) under many brand names. I installed this EMI filter and the problem has disappeared, with spurs now below the random noise level. Quantitatively, I'd estimate at least a 40-50dB sort of improvement on low-frequency and mid-frequency bands (e.g. AM radio). Installation was not terribly difficult. (EDIT: Modify your equipment at your own risk. I make no representations regarding the safety, or effect on agency approvals, of this modification.) Release the strain relief from the treadmill frame, then unlatch it from the existing power cable. Then re-latch the strain relief closer to the plug, so that when reinserted in the frame, there will be enough slack cable inside the frame. Find a suitable mounting spot for the filter first, so you'll know if you have enough slack. I drilled two 1/8" holes in the frame of the treadmill and used self-tapping sheet-metal screws. Then cut the cable and remove the outer jacket from both cut ends. Strip the ends of the conductors and crimp on ring terminals and you're done. Make sure that you connect the green wire of the power cord and the green wire from the treadmill frame to the ground terminal of the filter.
J**0
Helped fix flickering LED lamps
Washing machine (direct drive Samsung) when agitating, causing some cheap Chinesium LED bulbs to flicker. Some bulbs ok, others flickered. Wired a male and female cord end onto this suppressor and fed washer through it. Reduced but didn’t completely eliminate flicker. Barely noticeable now.
E**P
Ok but attenuation starts at higher frequency than I was hoping.
Great case, well made terminals, freq response higher than I wanted to clean up power line noise.
T**F
Impressed
Installed this on my outside led pole light. Well actually it's installed in a weather tight electrical box. I was getting bad rf interference on my lower tv channels. Put this little jewel on and cleared the lower channels right up.
B**T
THIS THING WORKS
We added this to a whole-house intercom system and it cleaned up the connection very well. Also ran a wall-mounted CD player thru the same connector on the intercom system that was interfering, and that cleaned up even better. Very pleased. Overall, this works.
R**S
Filter out power-line signalling "noise" if it affects an unreasonably sensitive appliance.
A microwave was rebooting occasionally due to power-line signalling used by light switches and networking devices. Installed this on the 120v power source to the microwave, and the problem was solved. Of course, there's no excuse for a microwave being so sensitive to EMI; the filter should have been built *into* the microwave.
W**P
Looks like a good product
However it didn’t work for me. I was trying to cut down RF interference from two ballasts running grow lights for my tomatoes. They were creating a lot of “hash” on the 80 meter Ham band. I wired this up and put it in the line where the ballasts plugged in. No luck! Finally used some mix 77 torrids on each power lead which solved the problem.
Trustpilot
2 weeks ago
4 days ago