Blue Gate 3KVA/2100W Online UPS HF Series - BGK 3.0HFi, offers seamless power backup, with zero transfer performance. The Blue Gate Online UPS range has zero switching time, making them ideal for sensitive equipment like servers, networking devices, and similar equipment that will not tolerate any power switchover time. The Blue Gate 3KVA UPS, like others in the series, boasts an advanced UPS design, with a central processing system. It is equipped with advanced voltage compensation technology, advanced frequency technology and advanced PFC technology. You get undistorted standard sine wave from a wide range of input variables, as a result.