A line interactive UPS contains a regulator that boosts the mains power supply when it falls. It can regulate power to an acceptable level, without the use of a battery, during a brownout or surge in supply voltage.Similar to an offline UPS, there is a short period (ie transfer time) when a line interactive UPS will switch to battery mode during a blackout.
Most line interactive UPS units have additional features including sinewave output, enhanced software and connectivity options. They provide a high level of protection, at an affordable price, for corporate applications.
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