STI – Single-phase control, isolating and safety transformers


Designed and tested according

· IEC/EN 61558-2-2 / 2-4 / 2-6
· VDE 0570-2-2 / 2-4 / 2-6
· UL 5085-2
· CSA 22.2 No. 66

Typical applications

· Control voltage circuits
· Functional low voltage
· Safety low voltage
· Protective separation

For use according to

· IEC/EN 60204-1
· VDE 0113 / VDE 0100 part 410

Basic equipment

· Seperate windings
· Insulation class B
· Ambient temperature –25 to 40 °C
· Connection terminal (<63 A) · Frequency 50/60 Hz · ±5 % tapping on the primary side

Sample order

· requested type STI0,06
· requested rated input voltage 230 V
· requested rated output voltage 12 V

The correct type designation reads STI0,06(230/12)

The umambiguous article number of your configuration will be defined by trafomodern during the offer- and order process. 

Technical notes

Important Note:

  • According to IEC/EN 61 558 transformers with rated output voltages ranging from 12 V to 42 V can be used as safety transformers.
  • UL/CSA only up to 600 V (incl. tapping)
  • CUR according to UL-File XPTQ2. or XPTQ8.E168819 (General Purpose-Component)
  • From STI0,315 (*/12) —> STZ

When ordering, the following information must be added to the type designation:

  • STI0,06(*/*)
  • 1st place holder≙ rated input voltage
  • 2nd place holder≙ rated output voltage

CAD-data

show

Rated output kVAShort time rating kVARated input voltage V(selectable)Rated output voltage V(selectable)TypePrice per unit EuroCu-no. 1)
0,060,13230 ± 5 % 400 ± 5 %12/ 24STI0,06(*/*)Price on request0,20
0,10,24415 ± 5 % 440 ± 5 %42 / 110STI0,1(*/*)0,25
0,160,36500 ± 5 % 690 ± 5 %230STI0,16(*/*)0,40
0,20,44STI0,2(*/*)0,65
0,250,6STI0,25(*/*)0,80
0,3150,75STI0,315(*/* )1,10
0,41STI0,4(*/*)1,15
0,51,6STI0,5(*/*)1,40
0,631,7STI0,63(*/*)1,90
0,82STI0,8(*/*)2,10
12,8STI1,0(*/*)2,20
1,33,7STI1,3(*/*)3,20
1,65,5STI1,6(*/*)3,40
27STI2,0(*/*)4,00
2,59STI2,5(*/*)5,50
311,5STI3,0(*/*)9,50
415STI4,0(*/*)10,40

1) The calculation method of the material price surcharge will be explained in Section 2.1 in the general conditions of business.

typetotal
weight
no-load
losses
short-circuit
losses
short-circuit
voltage
efficiencyabcbcbcbcbcefø gb1c1
kgWW%12 V24 V42 V110 V230 V
STI0,061,5657,80,85857591759175917591759164474,8 x 86076
STI0,12786,90,87858991899189918991899164614,8 x 87476
STI0,162,39126,60,88859791979197919791979164704,8 x 88376
STI0,2311176,60,88106831128311283112831128311280615,8 x 128097
STI0,253,813145,10,91061111249111291112911129111280705,8 x 128997
STI0,3154,310185,50,921218811988119881198811990685,8 x 1286106
STI0,45,217184,40,9212110011910011910011910011990805,8 x 1298106
STI0,56,815243,90,93121140131120119120119120119901005,8 x 12118106
STI0,637,715274,10,94151121157107145107145107145122827 x 15104132
STI0,89,617253,20,95151138157124145124145124145122997 x 15121132
STI1,013,427292,90,951511641571641571501451501451221257 x 15147132
STI1,314,9323530,951751481691481691381571381571351107 x 15135152
STI1,617,421372,40,9619514224014918614217414217415011010 x 18140166
STI2,021,5273320,9719515424016118615417415417415012210 x 18152166
STI2,521,539432,40,9719515424015424016118615417415012210 x 18152166

1) Values measured at room temperature, dimensions in mm

 

typetotal
weight
no-load
losses
short-circuit
losses
short-circuit
voltage
efficiencyabcbcbcbcbcefø gb1c1
kgWW%12 V12 V24 V24 V42 V42 V110 V110 V230 V230 V
STI3,02630552,10,9723021025023025518527517025519020011
STI4,03538882,20,9723023525025525521027520025519020011

1) Values measured at room temperature, dimensions in mm