International Series Power Transformers • PCB Type

INTERNATIONAL SERIES POWER TRANSFORMERS • PCB TYPE

3S Industries international Series power transformers designed and constructed to meet UL, CSA, VDE & IEC U.S. & international standards. This is accomplished by the dual bobbin construction including an overall insulating shroud. The insulation system results in very high isolation between primary and secondary windings and from either to the core. Hipot test is on this transformers 4000VAC RMS.
All 3S industries transformers are 100% tested for turns ratio, exciting current, phasing & hipot.

PART#

VA SIZE

SECONDARY RMS RATING

SERIES

PARALLEL

MECHANICAL DRAWING & DIMENSIONS

3S-2.5-10
3S-5.0-10
3S-10-10
3S-20-10
3S30-10
3S-56-10

2.5
5.0
10.0
20.0
30.0
56.0

10V C.T @0.25A
10V C.T. @ 0.5050A
10V C.T. @ 1.00A
10V C.T. @ 2.00A
10V C.T. @ 3.00A
10V C.T. @ 5.60A

5V @ 0.5A
5V @ 1.0A
5V @ 2.0A
5V @ 4.0A
5V @ 6.0A
5V @ 11.2A

3S-2.5-12
3S-5.0-12
3S-10-12
3S-20-12
3S-30-12
3S-56-12

2.5
5.0
10.0
20.0
30.0
56.0

12.6V C.T. @ 0.2A
12.6V C.T. @ 0.4A
12.6V C.T. @ 0.8A
12.6V C.T. @ 1.6A
12.6V C.T. @ 2.4A
12.6V C.T. @ 4.4A

6.3V @ 0.4A
6.3V @ 0.8A
6.3V @ 1.6A
6.3V @ 3.2A
6.3V @ 4.8A
6.3V @ 8.8A

3S-2.5-24
3S-5.0-24
3S-10-24
3S-20-24
3S-30-24
3S-56-24

2.5
5.0
10.0
20.0
30.0
56.0

24V C.T. @ 0.10A
24V C.T. @ 0.21A
24V C.T. @ 0.42A
24V C.T. @ 0.83A
24V C.T. @ 1.25A
24 V C.T. @ 2.33A

12V @ 0.20A
12V @ 0.42A
12V @ 0.84A
12V @ 1.66A
12V @ 2.50A
12V @ 4.66A

SCHEMATIC

115V 50/60 HZ
115V 50/60 HZ

3S-2.5-28
3S-5.0-28
3S-10-28
3S-20-28
3S-30-28
3S-56-28

2.5
5.0
10.0
20.0
30.0
56.0

28V C.T. @ 0.09A
28V C.T. @ 0.18A
28V C.T. @ 0.36A
28V C.T. @ 0.72A
28V C.T. @ 1.06A
28V C.T. @ 2.00A

14V @ 0.18A
14V @ 0.36A
14V @ 0.72A
14V @ 1.44A
14V @ 2.12A
14V @ 4.00A

3S-2.5-36
3S-5.0-36
3S-10-36
3S-20-36
3S-30-36
3S-56-36

2.5
5.0
10.0
20.0
30.0
56.0

36V C.T. @ 0.07A
36V C.T. @ 0.14A
36V C.T. @ 0.28A
36V C.T. @ 0.56A
36V C.T. @ 0.82A
36V C.T. @ 1.56A

18V @ 0.14A
18V @ 0.28A
18V @ 0.56A
18V @ 1.12A
18V @ 1.64A
18V @ 3.12A

PRIMARIES ARE DESIGNEDTO BE USED SIMULTANEOUSLY. SECONDARIES ARE DESIGNED TO BE USED SIMULTANEOUSLY; THAT IS, THEY MUST BE USED EITHER SERIES OR PARALLEL CONNECTED(AS ONE WINDING).

DIMENSIONS

Pin Dimensions

MTG.

MTG SCREW

SIZE

QTY

LBS

2.5
5.0
10.0
20.0
30.0
56.0

1 5/8
1 5/8
1 7/8
2 1/4
2 5/8
3

1 5/1
1 5/8
1 7/8
2 1/4
2 5/8
3

1 1/8
1 3/8
1 3/8
1 5/8
1 9/16
1 13/16

.200
.200
.200
.400
.275
.300

.250
.400
.400
.400
.275
.300

1.000
1.000
1.128
1.436
1.650
1.866

.025SQ
.025SQ
.038SQ
.038SQ
.045SQ
.045SQ

1 1/16
1 1/16
1 1/4
1 1/2
-
-

-
-
-
-
1 3/4
2

-
-
-
-
2 3/16
2 1/2

4
4
4
4
6
6

2
2
2
2
2
2

.25
.37
.53
.90
1.15
1.70