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Transformers
Transformers
2010
CA08103002Z-EN
www.eaton.comTransformers
Total
weight
No-load
losses
Short-
circuit
losses
Short-
circuit
voltage
Efficiency
Total
weight
No-load
losses
Short-
circuit
losses
Short-
circuit
voltage
Efficiency
kg
W
W
%
kg
W
W
%
Single-phase control, isolating, and safety transformers
1)
Three-phase control, isolating, and safety transformers
1)
ST…0.06 1.5
6
5
7.8
0.85
DTZ0.1
1.9
5
28
15
0.75
ST…0.1
2
7
8
6.9
0.87
DTZ0.16 2.5
8
20
9.5
0.85
ST…0.16 2.3
9
12
6.6
0.88
DTZ0.25 3.6
11
25
8.5
0.88
ST…0.2
3
11
17
6.6
0.88
DTZ0.4
5.1
15
40
8
0.88
ST…0.25 3.8
13
14
5.1
0.9
DTZ0.5
6.1
20
35
6
0.9
ST…0.315 4.3
10
18
5.5
0.92
DTZ0.63 8.9
25
50
5.5
0.9
ST…0.4
5.2
17
18
4.4
0.92
DTZ1.0
12.9
35
50
4
0.92
ST…0.5
6.8
15
24
3.9
0.93
DTZ1.6
18.5
55
60
3
0.93
ST…0.63 7.7
15
27
4.1
0.94
DTZ2.0
22.4
60
75
3.5
0.94
ST…0.8
9.6
17
25
3.2
0.95
DTZ2.5
29.3
80
85
2.5
0.94
ST…1.0
13.4
27
29
2.9
0.95
DTZ4.0
39.6
60
100
2
0.96
ST…1.3
14.9
32
35
3
0.95
DTZ6.3
50.2
66
170
2
0.96
ST…1.6
17.4
21
37
2.4
0.96
DTZ8.0
55
60
250
4
0.96
ST…2.0
21.5
27
33
2
0.97
DTZ10
70
80
280
3.5
0.97
ST…2.5
21.5
39
43
2.4
0.97
DTZ12.5 80
95
300
4
0.97
ST…3.0
26
30
55
2.1
0.97
DTZ16
95
100
420
4.5
0.97
ST…4.0
35
38
88
2.2
0.97
DTZ20
125
140
400
3.5
0.98
STZ5.3
40
40
165
4
0.96
DTZ25
160
180
350
3
0.98
STZ8.3
55
65
200
4
0.97
STZ13.3
80
95
265
3.5
0.97
Single-phase control transformers
1)
Single-phase multi-winding transformers
STN0.06
1
7
10
11
0.79
UTI0.1
2
8
11
7.5
0.84
STN0.1
1.5
7
15
10
0.84
UTI0.2
3
10
19
6.5
0.87
STN0.16
2.4
11
16
6.7
0.87
UTI0.315 4.3
15
23
5
0.89
STN0.2
2.8
9
19
6.8
0.88
UTI0.5
6.8
26
23
3.5
0.92
STN0.25
2.9
9
21
6.3
0.9
UTI0.63
7.7
25
32
3.8
0.92
STN0.315 3.5
11
21
5.3
0.91
UTI0.8
9.6
33
29
2.8
0.93
STN0.4
4.2
12
27
5.3
0.92
UTI1.0
13.4
46
30
2.1
0.93
STN0.5
5.1
15
27
4.1
0.93
STN0.63
7.1
21
32
3.8
0.93
STN0.8
9.8
24
24
2.5
0.94
STN1.0
12.4
33
26
2.2
0.94
STN1.3
14.1
46
33
2.1
0.94
STN1.6
14.3
43
44
2.5
0.95
STN2.0
19.9
56
42
2
0.95
STN2.5
20
21
145
2.4
0.95
STN3.0
23
32
94
2.4
0.96
STN4.0
27
28
143
2.4
0.96
1)
All no-load loss, short-circuit loss, short-circuit voltage and efficiency values apply at a temperature of 20 °C.
STI, STZ, DTZ, UTI