UPS Models From Emerson Network Power Earn ENERGY STAR®
Two of the company’s three-phase, transformer-based models received the distinction.
Emerson Network Power has announced two models of the Liebert® NXLuninterruptible power supply (UPS) earned ENERGY STAR® qualification, the 480V input 800 and 1100 kVA models. The highest-capacity transformer-based UPS in the industry, the Liebert NXL offers the operating efficiency typically found in a transformer-free UPS with the added dependability and fault tolerance the transformer provides. Both qualified models of the Liebert NXL UPS are available for 60 Hz applications across North America.
As part of its larger electrical equipment efficiency improvement program, the Environmental Protection Agency (EPA) instituted its ENERGY STAR for UPS program in late 2012, affecting UPS products rated greater than or equal to 1500 watts. To qualify for the ENERGY STAR certification, the Liebert NXL was subjected to testing by a UPS-specific certification body recognized by the EPA. This certification process examines products based on average power, efficiency and efficiency variation for determination of steady-state, and UPS products meeting the EPA’s requirements use an average of 35 percent less energy than their standard counterparts.