UPS Overview Standby Line Interactive Online   Sometimes called a True Online UPS, the Online UPS is the highest quality UPS option available. They are also referred to as Double Conversion, as the AC needs to be rectified to DC, then Inverted back to DC therefore mains power is isolated from the load by 2 conversions , and is isolated by nature of the DC bus. The advantage is that power comes via the battery, which is constantly being charged. There is no transfer time and as such the UPS is permanently online, except when in bypass from fault clearing, maintenance,or from battery depletion. Online UPS offer a superior level of performance for mission critical installations where the maximum level of uptime is required Advantages include: • No break operation during load transfer • Isolation of the load from power distribution network • Wide input-voltage tolerance • Tight regulation of output voltage • Tight regulation of output frequency • Optional manual bypass • The Online UPS can also be configured to operate minus the DC Battery string as a 50/60 Hz frequency converter Click on the images below to view details and specs on each unit. 9130 9125 9155 9170+ 9305 9355

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