Choosing the right transformer for your Isolated Power System is important to make sure you don’t overload it and have a critical failure in your Operating Room.

The amount of load you can place on your Isolated Power System is determine by the transformer.

Isolated Power System Transformer

The wire gauges below are for 75oC rated copper wire.

120V Secondary

5 kVA Transformers

Input Volts

208

Input Amps

25

Input Wire Ga

10

Output Volts

120

Output Amps

41

Output Wire Ga

8

Input Volts

240

Input Amps

21

Input Wire Ga

10

Output Volts

120

Output Amps

41

Output Wire Ga

8

Input Volts

277

Input Amps

19

Input Wire Ga

12

Output Volts

120

Output Amps

41

Output Wire Ga

8

120V Secondary

7.5 kVA Transformers

Input Volts

208

Input Amps

37

Input Wire Ga

8

Output Volts

120

Output Amps

62

Output Wire Ga

6

Input Volts

240

Input Amps

32

Input Wire Ga

8

Output Volts

120

Output Amps

62

Output Wire Ga

6

Input Volts

277

Input Amps

28

Input Wire Ga

10

Output Volts

120

Output Amps

62

Output Wire Ga

6

120V Secondary

10 kVA Transformers

Input Volts

208

Input Amps

49

Input Wire Ga

8

Output Volts

120

Output Amps

83

Output Wire Ga

4

Input Volts

240

Input Amps

42

Input Wire Ga

8

Output Volts

120

Output Amps

83

Output Wire Ga

4

Input Volts

277

Input Amps

37

Input Wire Ga

8

Output Volts

120

Output Amps

83

Output Wire Ga

4

208V Secondary

10 kVA Transformers

Input Volts

208

Input Amps

49

Input Wire Ga

8

Output Volts

208

Output Amps

48

Output Wire Ga

8

Input Volts

240

Input Amps

42

Input Wire Ga

8

Output Volts

208

Output Amps

48

Output Wire Ga

8

Input Volts

277

Input Amps

37

Input Wire Ga

8

Output Volts

208

Output Amps

48

Output Wire Ga

8

208V Secondary

15 kVA Transformers

Input Volts

208

Input Amps

73

Input Wire Ga

4

Output Volts

208

Output Amps

72

Output Wire Ga

4

Input Volts

240

Input Amps

63

Input Wire Ga

6

Output Volts

208

Output Amps

72

Output Wire Ga

4

Input Volts

277

Input Amps

55

Input Wire Ga

6

Output Volts

208

Output Amps

72

Output Wire Ga

4

208V Secondary

25 kVA Transformers

Input Volts

208

Input Amps

121

Input Wire Ga

1

Output Volts

208

Output Amps

120

Output Wire Ga

1

Input Volts

240

Input Amps

105

Input Wire Ga

2

Output Volts

208

Output Amps

120

Output Wire Ga

1

Input Volts

277

Input Amps

91

Input Wire Ga

3

Output Volts

208

Output Amps

120

Output Wire Ga

1