Features Input Voltage (Primary) : 230V (183V to 264V) or 115V (98V to 132V). Output Voltage (Secondary) : 230V (183V to 264V) or 115V (98V to 132V). Common Mode Noise Rejection : More than 130dB. DC Galvanic Isolation : More than 1000M Ohm between any Winding or Winding to Case. Break Down Voltage : 2.5KV AC for 2 Minutes between any winding or Winding to Case. Acceptable Line Frequency : 46 to 56Hz. Input / Output Termination : Terminal Strips. OPTIONAL FACILITIES : (At Extra Cost) Built-in Transient Suppressor Limits Surges & Spike of 100V / µs. Built-in RFI / EMI Suppressor. Input Cable with Plug. Output Socket of Required Rating