A device that provides for the electrical power quality needs of the connected electrical or electronic load. In the case of a linear power supply, a line conditioner might be a voltage regulator. In the case of a switch mode power supply, a line conditioner might be an isolation transformer with a noise filter and surge diverter. In the case of a simple electrical device like a motor, a line conditioner might be as rudimentary as a surge diverter. The term line conditioner is frequently misused. It must be understood that not all line conditioners function alike, and the capabilities of a line conditioner must be matched to the power quality needs of the connected load.
Any device with a primary function to condition the quality of commercial power received by a load. This term is not applied uniformly among power protection manufacturers. A Tripp Lite line conditioner employs the use of a tap-switching voltage regulator. Other companies refer to surge suppression products with active filtering as line conditioners, while still others refer to their isolation transformer products as line conditioners. Others could theoretically refer to UPS systems as line conditioners as well. When fielding a request for a "line conditioner," it's critical to learn what that customer is specifically looking to accomplish (surge protection alone, voltage regulation, line isolation or battery backup).