Tripp Lite's SU40K (40kVA) SmartOnline Modular 3-Phase Intelligent, True On-Line UPS System provides 100% system availability with N+1 modular architecture and 1+1 parallel capability. In an N+1 configuration, the SU40K provides two self-contained, redundant 20kVA power modules that can be hot-swapped (with the load powered) if maintenance is required. Connect two SU40K models in parallel (1+1 configuration) to provide fail-safe redundancy (two 40kVA models supporting a 40kVA load) or to increase capacity (two 40kVA models supporting an 80kVA load).The SU40K provides mission-critical equipment with the highest level of power protection available. Large capacity 40,000VA/32,000W UPS continually converts incoming AC power into filtered DC power, and then resynthesizes it back into AC power with a pure sine wave. Perfectly regulated, continuous sine wave output with zero transfer time assures compatibility with all equipment types. The SU40K's high input power factor, advanced IGBT inverter technology and Digital Signal Processor (DSP) technology produce less than 3% input Total Harmonic Distortion (THDi). With low THDi, generators run cooler and last longer, allowing managers to save installation costs by installing a generator with a capacity equal to the equipment load (1:1 ratio). Extremely efficient operation (up to 96%) saves money by lowerin