... No breaks, SAI, USV, Uninterruptible power sourceIncluding High frequency online ups :1-10KVA( single phase in, single phase out)10-20kVA(three phase in, single phase ... out) High Frequency online UPS with output transformer: 6-10kVA(single phase in, single phase out) 10-20kVA(three phase in, single phase ... Function According to load capability and environmental temperature ...