STZ – Single-phase control, isolating and safety transformers


Designed and tested according

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

Typical applications

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

For use according to

· IEC/EN 60204-1

Basic equipment

· Separate windings
· Insulation class F
· Ambient temperature –25 to 40 °C
· Connection terminal (<=115 A) · Frequency 50/60 Hz · ±5 % tapping on the primary side

Other available accessories

· Protective enclosure IP23
· Additional tapping
· Conductive screen
· Temperature monitoringg
· conductive screen
· Tropic-proof equipment

Sample order

· requested type STZ5,3
· requested rated input voltage 230V
· requested rated output voltage 36V

The correct type designation reads STZ5,3(230/36)

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

Technical notes

Important notes:

According to IEC/EN 61 558 transformers with rated outout voltages ≤ 50 V can be used as safety transformers
For versions with increased climate resistance, the transformers is supplied with a specially insulated finish.

  • UL/CSA only up to 600 V (incl. tapping)
  • CUR according to EIS 155 nach OBJY2 bzw. OBJY8.E160829 (Systems, Electrical Insulation – Component bzw. Systems, Electrical Insulation Certified for Canada – Component, Isolierstoffsystem)

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

  • STZ5,3(*/*)
  • 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 1) EuroPrice per unit 1) ACu-no. 1)
0,060,1350–950 ± 5 %14-400STZ0,06(*/*)Price on requestPrice on request0,20
0,10,2414-400STZ0,1(*/*)0,25
0,160,3614-400STZ0,16(*/*)0,40
0,20,4412-1000STZ0,2(*/*)0,65
0,250,612-1000STZ0,25(*/*)0,80
0,3150,7512-1000STZ0,315(*/*)1,10
0,4112-1000STZ0,4(*/*)1,15
0,51,612-1000STZ0,5(*/*)1,40
0,631,712-1000STZ0,63(*/*)1,90
0,8212-1000STZ0,8(*/*)2,10
12,812-1000STZ1,0(*/*)2,20
1,33,712-1000STZ1,3(*/*)3,20
1,65,512-1000STZ1,6(*/*)3,40
2712-1000STZ2,0(*/*)4,00
2,5912-1000STZ2,5(*/*)5,50
311,512-1000STZ3,0(*/*)9,50
41512-1000STZ4,0(*/*)10,40
5,31312-1000STZ5,3(*/*)12,50
8,32112-1000STZ8,3(*/*)17,50
13,33412-1000STZ13,3(*/*)25,00

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
STZ0,061,5657,80,85857591759175917591759164474,8 x 86076
STZ0,12786,90,87858991899189918991899164614,8 x 87476
STZ0,162,39126,60,88859791979197919791979164704,8 x 88376
STZ0,2311176,60,88106831128311283112831128311280615,8 x 128097
STZ0,253,813145,10,91061111249111291112911129111280705,8 x 128997
STZ0,3154,310185,50,921218811988119881198811990685,8 x 1286106
STZ0,45,217184,40,9212110011910011910011910011990805,8 x 1298106
STZ0,56,815243,90,93121140131120119120119120119901005,8 x 12118106
STZ0,637,715274,10,94151121157107145107145107145122827 x 15104132
STZ0,89,617253,20,95151138157124145124145124145122997 x 15121132
STZ1,013,427292,90,951511641571641571501451501451221257 x 15147132
STZ1,314,9323530,951751481691481691381571381571351107 x 15135152
STZ1,617,421372,40,9619514224014918614217414217415011010 x 18140166
STZ2,021,5273320,9719515424016118615417415417415012210 x 18152166
STZ2,521,539432,40,9719515424015424016118615417415012210 x 18152166

1) Values measured at room temperature            all 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
STZ3,02630552,10,9723021025023025518527517025519020011
STZ4,03538882,20,9723023525025525521027520025519020011

1) Values measured at room temperature            all dimensions in mm

typetotal
weight
no-load
losses
short-circuit
losses 1)
short-circuit
voltage
efficiencyabcbcbcbcbcefø gb1c1
kgWW%12 V24 V42 V110 V230 V
STZ5,3404016540,9626020037420037420037421437421436023012610 x 18
STZ8,3556520040,9726023037423037424437424437423015610 x 18
STZ13,380952653,50,9732024044024044027044027044027017213 x 20

*) The dimensions of the higher rated voltage are applicable
1) Values measured at room temperature
all dimensions in mm