AVR D Series U Series NB Series► Tower NB Series► Rack SB Series PS Series UPS Line Interactive A Series On-Line P Series►Tower On-Line P Series►Rack On-Line Smart Series 3 Phase ALP Series UPS for Elevator ►1KVA~3KVA UPS for Elevator ►2.4KVA~20KVA UPS for Electric Rolling Door OTHERS Dry Isolation Transformer Converter Auto Battery Charger TEL:05-5873238 skype: newseed66 newseed@ms15.hinet.net newseed.ups@msa.hinet.net QR code Products Specification Converter Capacity 500VA~20KVA Voltage 110v or 220v,Input:±20%,Output:±1% Frequency 50hz or 60hz or 400hz ±0.5% *Welcome to require special specification.