ST Series - Single Phase Isolation Transformers

FAQ for ST Series - Single Phase Isolation Transformers

Single Phase Isolation Transformers
Range: 12VA to 200kVA

Key Features

  • Built according to IEC60067 or IEC61558 Standard
  • Heavy Duty. Copper Wound.
  • Multi Input and Output Availble

Standard Technical Characteristics

Insulation

Below 100VA: Class 130 (B)

100VA and above: Class 155 (F)

30kVA and above: Class 180 (H)

Winding Insulation

Class 200 (N) & Class 220 (R)

Frequency

50/60Hz

Ambient

40C

Protection Degree

50kVA and Below: Up to IP66
Above 50kVA: Up to IP55

Standard

IEC 61558-1 / IEC 60076-11

Test Voltage

3kV between primary and secondary for 1min at 50Hz

3kV between primary and earth for 1min at 50Hz

3kV between secondary and earth for 1min at 50Hz