OnFilter mains filters

OnFilter mains filters

Description

OnFilter CleanSweep EMI filters provide noise-free AC power to your sentive equipment in end-user installations. Innovation design accomplishes maximum noise suppresssion of signals polluting your power lines, freeing your equipment from harmful interference.

Clean power is essential for uninterrupted and problem free operation of electronic equipment. In our ever increasingly 'electronic' world,  electromagnetic interference (noise) becomes more prevalent and is routinely conducted through the power network and ground, causing reliability issues.

The design of the CleenSweep filters focuses on the properties of real-life signals on power lines and produces maximum reduction of the 'worst offenders' on these lines. 

Key Points

Features

OnFilter mains filters are uniquely designed to deal with interference under real rather than laboratory conditions. They were developed after a careful study of the manner in which RF interference is transmitted through mains power distribution cables. The conclusions of this study has led to a filter design which is proven to be far more effective than those which are designed to meet EMC standards only.


OnFILTER AC single phase filters provide effective EMI protection for electrical equipment powered by 50/60Hz, 110 to 250V sources.  These filters are especially effective where conventional EMI protection fails - at lower end of the spectrum.

Long cables in a power network affect the noise signal generated by equipment.  Distributed inductance and capacitance of the cables in addition to the skin effect reduce high-frequency content of the noise; however the same inductance and capacitance create resonant circuits that "ring" on sharp transient signals that are all too common on power lines and transform these short transients into longer low-frequency signals.  These low-frequency signals (generally, up to 1MHz) are not present during electromagnetic emission tests in a laboratory and thus are not controlled by the equipment's own filters. 

Filters can be ordered with a variety of option: connectivity (cable and outlets for different regions) and others.

Product Specification

 

 Single Phase  3 Phase
 Rated Voltage (rms) 110 ... 250v 110 ... 250v
 Rated current (rms) 15 ... 30A 15 ... 30A

 Transient signal attenuation
Differential mode
Common mode


24dB
20dB

 
24dB
20dB
Continuous signal attenuation
Low frequencies
High Frequencies
 
50dB
25dB
 
50dB
25dB
 Power indication LED LED
Size  (W x D x H)  mm.
Up to 20A
Over 20A 


157 x 153 x 75
157 x 254 x 75


157 x 254 x 75
157 x 254 x 75

Associated Downloads

CleanSweep - a technical background. - Describes the cause and cure for mains noise,
Data sheet - OnFilter Single and 3 phase filters

 

Effect of an OnFilter in reducing 'glitch' level.

Effect of an OnFilter in reducing 'glitch' level.

Comparison with 'Standard' filters.

Comparison with 'Standard' filters.

Problems with 'standard' filters when mains impedance varied.

Problems with 'standard' filters when mains impedance varied.