REL 2200N is a True Online, Pure Sinewave, Double Conversion and DSP Controlled UPS System. The UPS System protects your critical load by eliminating the Utility Power fluctuations, Sags and Surges and Failures by inherent Voltage regulation function and Battery Bank Support. The UPS System consists of A Rectifier/ Charger Assembly, An Inverter Assembly, Static Bypass Assembly, Manual Maintenance Bypass Assembly and a Battery Bank as shown in the Figure.