We are offering isolation transformer 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 s.built-in rfi emi suppressor.input cable with plug.output socket of required rating