The MCR Series provides excellent noise filtering and surge protection to safeguard connected equipment against damage, degradation or malfunction. This protection, combined with the excellent voltage regulation inherent to the ferroresonant design, can significantly increase the mean time between failures (MTBF) of protected equipment. MCR portable units are the perfect choice where use of an existing outlet is preferred over hardwiring. There is no easier way to protect your valuable equipment and operations from dirty power caused by impulses, swell, sags, brownouts or waveform distortion.