Inductive components


Polytronik® toroidal transformers

Polytronik® toroidal transformers are particularly suitable for producing modern powerful equipment and system components in the field of electrical engineering and electronics (e.g. Audio / HiFi technics, medical technology, communications engineering, measurement technology, halogen lights, alternative energy sources, e.g. solar technology).

High capacity with compact dimensions, the extremely low magnetic leakage, maximum efficiency and a very good temperature behaviour are especially relevant for these power transformers.

Benefits for our customers

Our strengths lie in the swift, economic and high quality solutions. By manufacturing within our own Czech subsidiary we can offer an optimum price-performance ratio:

  • Qualified manufacturer with a certified QM System DIN EN ISO 9001 as a prerequisite for reproducible quality products.
  • Certified and monitored quality by the Swiss Electrotechnical Association (SEV) and UL, guaranteed compliance with international security standards.
  • High operational reliability and a long product lifetime due to unpressurized fastening technology, integrated temperature switch and a competent supplier, which is certified in accordance with DIN EN ISO 9001.
  • Significant cost and time savings through our offering of complete solutions from a single source (core machines including packages and housing or assembly platform).
  • Diverse application possibilities due compact dimensions, low weight, low magnetic leakage field, high level of efficiency and extremely low humming noises compared with “conventional” transformers.
  • Quick mounting due various fixing options.
  • Saving of testing and certification costs due to the ENEC symbol on our RKTs; this symbol is recognized by European testing institutes.

The video below shows the no-load current of a conventional transformer compared to a SEDLBAUER Polytronic toroidal transformer of the same power.


Polytronik® toroidal transformers - standard programme

Toroidal transformers Basic

Technical Data

  • Safety and isolating transformers according to EN 61558-2 / VDE 0570 with ENEC and UL quality mark
  • Electrically separate primary- and secondary windings
  • Very low stray magnetic fields
  • Very low no-load loss (no-load power consumption)
  • Very high efficiency
  • Maximum ambient temperature ta = 40°C / temperature class B (130°C)
  • Toroidal transformer without mounting accessories

Toroidal transformers Premium

Technical Data

  • Safety and isolating transformers according to EN 61558-2 / VDE 0570 withENEC and UL quality mark
  • Electrically separate primary- and secondary windings
  • Very low stray magnetic fields
  • Very low no-load loss (no-load power consumption)
  • Very high efficiency of up to 98%
  • Maximum ambient temperature ta = 60°C / temperature class B (130°C)
  • Temperature switch 120°C in the primary winding integrated (automatically reset)
  • Toroidal transformer shed on mounting plates with through bore
  • All connectors produced with stranded wires and assembled with ferrules.

For further information, please refer to the type list and the data sheet.


Standard programme - Version Basic

EC Declaration of Conformity

The respective data sheet is stored after each item number.

                     

Rated output
[VA]
Primary voltage
[V-AC]
Download
Datasheet
Art.-No.
Rated voltage
[V-AC]
Rated current
[A-AC]
Efficiency
[%]
No-load losses
[W]
Diameter
[mm]
Height
[mm]
Weight
[kg]
Download
LTspice
model

20230826001
826002
826005
2 x 9
2 x 12
2 x 24
2 x 1,11
2 x 0,83
2 x 0,42
720,3558320,34826001
826002
826005
30
230826006
826007
826008
826009
826010
826011
2 x  6
2 x  9
2 x 12
2 x 15
2 x 18
2 x 24
2 x 2,50
2 x 1,67
2 x 1,25
2 x 1,00
2 x 0,84
2 x 0,63
780,3668
320,44826006
826007
826008
826009
826010
826011
50230826018
826019
826020
826021
826022
826023
2 x  6
2 x  9
2 x 12
2 x 15
2 x 18
2 x 24
2 x 4,17
2 x 2,78
2 x 2,08
2 x 1,67
2 x 1,39
2 x 1,04
830,4876340,58826018
826019
826020
826021
826022
826023
60230826013
826014
826017
2 x  9
2 x 12
2 x 24
2 x 3,33
2 x 2,50
2 x 1,25
830,5575380,65826013
826014
826017
100230826024
826025
826026
826027
826028
826029
826030
2 x    6
2 x    9
2 x   12
2 x   15
2 x   18
2 x   24
2 x 115
2 x 8,33
2 x 5,56
2 x 4,17
2 x 3,34
2 x 2,78
2 x 2,08
2 x 0,44
860,9989421,04826024
826025
826026
826027
826028
826029
826030
200230826036
826037
826038
826039
826041
826040
826042
826043
2 x     6
2 x     9
2 x   12
2 x   15
2 x   18
2 x   24
2 x   30
2 x 115
2 x 16,67
2 x 11,12
2 x  8,34
2 x  6,67
2 x  5,56
2 x  4,17
2 x  3,33
2 x  0,87
901,86113482,00826036
826037
826038
826039
826041
826040
826042
826043
300230826049
826050
826052
826053
826054
826055
2 x    9
2 x   12
2 x   18
2 x   24
2 x   30
2 x 115
2 x 16,67
2 x 12,50
2 x  8,33
2 x  6,25
2 x  5,00
2 x  1,31
922,40128562,80826049
826050
826052
826053
826054
826055
500230826057
826058
826059
826060
826061
2 x   12
2 x   18
2 x   24
2 x   30
2 x 115
2 x 20,84
2 x 13,89
2 x 10,42
2 x  8,34
2 x  2,18
933,67136694,15826057
826058
826059
826060
826061
1000230826070
826071
826072
826073
2 x  12
2 x  24
2 x  30
2 x 115
2 x 41,67
2 x 20,83
2 x 16,67
2 x  4,35
947,54194698,25826070
826071
826072
826073


The current and voltage values in the table are AC nominal load values.

For open-circuit voltage please refer the data sheet which is opened by clicking the respective article number (PDF).

Standard programme - Version Premium

EC Declaration of Conformity

The respective data sheet is stored after each item number.

                     

Rated output
[VA]
Primary voltage
[V-AC]
Download
Datasheet
Art.-No.
Rated voltage
[V-AC]
Rated current
[A-AC]
Efficiency
[%]
No-load losses
[W]
Diameter
[mm]
Height
[mm]
Weight
[kg]
Download
LTspice
model
15
230825001
825002
825003
825004
2 x 9
2 x 12
2 x 15
2 x 18
2 x 0,84
2 x 0,63
2 x 0,50
2 x 0,42
86
0,3060
390,40825001
825002
825003
825004
30
230825007
825008
825009
825010
2 x 9
2 x 12
2 x 15
2 x 18
2 x 1,67
2 x 1,25
2 x 1,00
2 x 0,84
86
0,4169
390,51825007
825008
825009
825010
50230825012
825013
825014
825015
825016
2 x 6
2 x 9
2 x 12
2 x 15
2 x 18
2 x 4,17
2 x 2,78
2 x 2,08
2 x 1,67
2 x 1,39
860,4978
42
0,68825012
825013
825014
825015
825016
75230825019
825020
825021
825022
825023
2 x 9
2 x 12
2 x 15
2 x 18
2 x 22
2 x 4,17
2 x 3,13
2 x 2,50
2 x 2,08
2 x 1,71
86
0,5892400,92825019
825020
825021
825022
825023
100230825024
825025
825026
825027
825028
2 x 6
2 x 9
2 x 12
2 x 15
2 x 18
2 x 8,33
2 x 5,56
2 x 4,17
2 x 3,34
2 x 2,78
871,1190551,27825024
825025
825026
825027
825028
150
2 x 115825030
825031
825032
825033
825034
2 x 6
2 x 9
2 x 12
2 x 15
2 x 18
2 x 12,5
2 x 8,34
2 x 6,25
2 x 5,00
2 x 4,17
90
1,33
115
471,85825030
825031
825032
825033
825034
2002 x 115
825037
825038
825039
825040
825041
2 x 9
2 x 12
2 x 15
2 x 18
2 x 115
2 x 11,1
2 x 8,34
2 x 6,67
2 x 5,56
2 x 0,87
911,9111562
2,54825037
825038
825039
825040
825041
250
2 x 115
825044
825045
825046
2 x 12
2 x 15
2 x 18
2 x 10,42
2 x 8,34
2 x 6,95
921,73
129552,73825044
825045
825046
300
2 x 115
825050
825051
825052
825053
825054
2 x 12
2 x 15
2 x 18
2 x 30
2 x 115
2 x 12,5
2 x 10,0
2 x 8,34
2 x 5,00
2 x 1,31
931,96
130603,07
825050
825051
825052
825053
825054
5002 x 115
825057
825058
825059
825060
825061
2 x 12
2 x 15
2 x 18
2 x 30
2 x 115
2 x 20,84
2 x 16,67
2 x 13,89
2 x 8,34
2 x 2,18
942,86
156624,78
825057
825058
825059
825060
825061
7502 x 115825064
825065
825066
825067
2 x 12
2 x 18
2 x 30
2 x 115
2 x 31,25
2 x 20,83
2 x 12,5
2 x 3,26
964,88
4,73
3,95
3,95
168
168
172
172
76
76
72
72
7,33
7,33
6,80
6,80
825064
825065
825066
825067
10002 x 115825070
825071
825072
825073
2 x 12
2 x 18
2 x 30
2 x 115
2 x 41,67
2 x 27,78
2 x 16,67
2 x 4,35
966,95
6,42
5,78
5,78
198
198
172
172
76
76
88
88
9,60
9,60
8,75
8,75
825070
825071
825072
825073
20002 x 1158250802 x 115
2 x 8,70
9810,5321511516,00825080


The current and voltage values in the table are AC nominal load values.

For open-circuit voltage please refer the data sheet which is opened by clicking the respective article number (PDF).

Webshops

Customer specific toroidal transformers

We will gladly also develop customised Polytronik® toroidal transformers in versions up to 15kVA performance with individual assembly including housing or assembly platform to unregulated or linear power supply and chokes.

Customer specific toroidal chokes

We produce customised toroidal chokes for a wide range of applications. We offer power chokes up to 5,0 mm wire diameter maximum (equates to 19,6 mm²). Partial or full grouting is possible. We would be glad to advise you with regard to core material and the construction form to fulfil your requirements in the best possible way.

Equipment

Inrush current limiter

Our inrush current limiters ensure current limiting when using transformers with high switching-on or starting currents.

NameItem number
Inrush current limiter 230V
535742
Inrush current limiter 115V535742-03
Top hat rail adapter
535742-02


For further technical details please refer to the respective data sheet that you can find behind the respective article number.


DC line filter

Our DC line filter is used as a ballast unit for minimising the humming noise at DC components in the supply network and was entered in March 2017 as a utility model.


NameItem number
DC-Netzfilter313141



For further technical details please refer to the respective data sheet.

Mounting accessories

We offer with our Polytronik® toroidal transformers Version Basic also a mounting kit with a metal disc and two rubber discs.

Mounting accessories (1 metal disc and 2 rubber discs) 

Suitable for
DiameterItem number
20 / 30 VA50 mm538432
50 / 60 VA60 mm538433
100 VA70 mm538434
200 / 300 VA90 mm538435
500 VA110 mm539599
1000 VA160 mm539600

Please find exact measurements in the technical drawing.


Technical data subject to change.
Pricing upon request.

©2017 SEDLBAUER AG. Copyright reserved.