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SIGA manufacture a range
of bobbin wound laminated type transformers with power output
range extending from 1VA up to 5kVA at a supply frequency of
50Hz.
As shown in the illustration various assembly styles are available
depending on the size of the transformer. The main dimensions
of the transformer are given in the table below along with the
approximate power ratings and regulation figures. The difference
between the styles is mainly that of mounting method and the
basic styles are :-
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STYLE 1:
Horizontal Printed Circuit Board mounting assembly. Although
intended for mounting using the PCB pin terminations,
larger sizes have corner holes for additonal fixings. |
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STYLE 2:
Clamping type assembly providing two hole fixing. Used
on small and medium size transformers. |
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STYLE 3:
Universal end frame assembly, which offers 4 hole fixing
and is suitable for the larger sized transformer. |
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Within these main styles
of bobbin wound laminated transformer other options are available,
subject to the size of the transformer and type of assembly.
Terminations - can be flying leads, bobbin mounted terminals,
terminal boards or terminal blocks. Bobbins - can be single
or double sections, with or without shrouds. Particularly with
double section bobbins the use of full shrouds provides an increase
in creepage and clearance distances. The standard finish is
varnish coating and if required an additional coat of enveloping
varnish can be applied to provide extra protection against moisture.
The table below shows the approximate dimensions for the different
ratings. The depth "D" does not include for the pins and approximately
7mm should be added each time where terminals are found. |
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| STYLE |
VA |
REGULATION |
WIDTH |
DEPTH |
HEIGHT |
FIXING CEN
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| 1 |
1 |
25% |
30 |
25 |
23 |
- |
| 1 |
3 |
20% |
30 |
34 |
30 |
- |
| 1 |
6 |
18% |
43 |
36 |
33 |
- |
| 1 |
12 |
12% |
58 |
48 |
45 |
- |
| 2 |
20 |
11% |
70 |
45 |
60 |
82.5 |
| 2 |
30 |
11% |
70 |
52 |
60 |
82.5 |
| 2 |
50 |
10% |
82 |
62 |
68 |
92 |
| 3 |
75 |
7% |
82 |
75 |
68 |
54 x 54 |
| 3 |
100 |
7% |
91 |
65 |
77 |
57 x 44 |
| 3 |
150 |
5% |
100 |
90 |
85 |
64 x 67 |
| 3 |
200 |
5% |
120 |
88 |
102 |
64 x 56 |
| 3 |
300 |
4% |
140 |
115 |
120 |
89 x 70 |
| 3 |
500 |
3% |
140 |
130 |
120 |
89 x 85 |
| 3 |
1000 |
3% |
140 |
160 |
120 |
89 x 120 |
| 3 |
2000 |
2% |
165 |
165 |
138 |
89 x 112 |
| 3 |
3000 |
2% |
CONTACT SALES OFFICE FOR SPECIFICATIONS |
| 3 |
4000 |
2% |
| 3 |
5000 |
2% |
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All SIGA laminated transformers
are designed to conform to the latest safety standards e.g.
EN60601, EN60742, EN61558 etc
SIGA also supply the following : Standard
toroidal transformers, Custom wound
toroidal transformers, Medical isolating
transformers, Ferrite cored transformers,
Potted transformers, Foil
wound coils and special assemblies. |
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