Indoor Type Isolation Transformer prevents passage of line voltage transient, spikes and galvanic leakages from reaching sensitive or critical equipment like computers and its peripherals, medical instrumentation, digital communication and telemetry systems etc. The Transformer isolates sensitive equipment`s from noisy power line and has complete electrostatic shielding. The Transformer minimizes transverse mode noise and has line and load regulation better than ± 3.5%. The Transformer has spike clamping level of 500c, spike voltage of 6 kv, spike current of 5 ka and has break down strength of 2500 v ac for 120 seconds. The Transformer has connector/ bus bar type input/ output type termination. The Indoor Type Isolation Transformer is suitable for all power factor loads and has the feature of natural air cooled/ oil cooled feature.