The Delta Ultron EH series is a true online double conversion UPS. It is a proven power supply solution for IT rooms, telecommunications, banks, medical facilities, laboratories and other environments where business critical applications cannot be interrupted. For a modest initial investment, the Double Converter - EH UPS series offers both excellent quality and one of the lowest operating costs for UPS systems in the 10-20 kVA range. To further reduce operating costs, the units can be operated in ECO mode with an efficiency of up to 96%.