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STZ - Single-phase control, isolating and safety transformers

Single-phase-control transformer: STN / STZ / STI / ET, ETF / ETSP, ETFSP

Contact
Tel.: +43 / 2689 / 2744 – 0
E-mail: info@trafomodern.com

Designed and tested according

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

For use according to

  • IEC/EN 60204-1

Typical applications

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

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

CAD data

 

  • 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

Sample order

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

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.

 

  Here is a hidden table in the mobile version. Click here to display it.
Rated output Short-time rating Rated input voltage Rated output voltage Type Price per unit1) Price per unit1) Cu-no. 1) Copper surcharge
kVA kVA V (selectable) V (selectable)   Euro A   Euro
0,06 0,13 50–950
± 5 %
14-400 STZ0,06(*/*) 62,80 16 0,20 1,00
0,1 0,24     STZ0,1(*/*) 71,10   0,25 1,25
0,16 0,36     STZ0,16(*/*) 87,30   0,40 2,01
0,2 0,44   12-1000 STZ0,2(*/*) 97,60   0,65 3,26
0,25 0,6     STZ0,25(*/*) 106,10   0,80 4,01
0,315 0,75     STZ0,315(*/*) 115,20   1,10 5,52
0,4 1     STZ0,4(*/*) 119,80   1,15 5,77
0,5 1,6     STZ0,5(*/*) 135,80   1,40 7,02
0,63 1,7     STZ0,63(*/*) 165,00 25 1,90 9,53
0,8 2     STZ0,8(*/*) 184,60   2,10 10,53
1 2,8     STZ1,0(*/*) 202,90   2,20 11,03
1,3 3,7     STZ1,3(*/*) 256,70   3,20 16,04
1,6 5,5     STZ1,6(*/*) 347,20   3,40 17,05
2 7     STZ2,0(*/*) 404,60   4,00 20,06
2,5 9     STZ2,5(*/*) 446,10   5,50 27,58
3 11,5     STZ3,0(*/*) 641,70   9,50 47,63
4 15     STZ4,0(*/*) 799,30   10,40 52,14
5,3 13     STZ5,3(*/*) 1.021,60   12,50 62,67
8,3 21     STZ8,3(*/*) 1.267,30   17,50 87,74
13,3 34     STZ13,3(*/*) 1.732,40   25,00 125,35

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

 


STZ graphic - Single-phase control, isolating and safety transformer

  Here is a hidden table in the mobile version. Click here to display it.
Type Total
weight
No-load losses Short-circuit losses Short-circuit voltage Efficiency factor a b c b c b c b c b c e f ø g b1 c1
  kg W W %     12 V 24 V 42 V 110 V 230 V          
STZ0,06 1,5 6 5 7,8 0,85 85 75 91 75 91 75 91 75 91 75 91 64 47 4,8 x 8 60 76
STZ0,1 2 7 8 6,9 0,87 85 89 91 89 91 89 91 89 91 89 91 64 61 4,8 x 8 74 76
STZ0,16 2,3 9 12 6,6 0,88 85 97 91 97 91 97 91 97 91 97 91 64 70 4,8 x 8 83 76
STZ0,2 3 11 17 6,6 0,88 106 83 112 83 112 83 112 83 112 83 112 80 61 5,8 x 12 80 97
STZ0,25 3,8 13 14 5,1 0,9 106 111 124 91 112 91 112 91 112 91 112 80 70 5,8 x 12 89 97
STZ0,315 4,3 10 18 5,5 0,92 121 - - 88 119 88 119 88 119 88 119 90 68 5,8 x 12 86 106
STZ0,4 5,2 17 18 4,4 0,92 121 - - 100 119 100 119 100 119 100 119 90 80 5,8 x 12 98 106
STZ0,5 6,8 15 24 3,9 0,93 121 - - 140 131 120 119 120 119 120 119 90 100 5,8 x 12 118 106
STZ0,63 7,7 15 27 4,1 0,94 151 - - 121 157 107 145 107 145 107 145 122 82 7 x 15 104 132
STZ0,8 9,6 17 25 3,2 0,95 151 - - 138 157 124 145 124 145 124 145 122 99 7 x 15 121 132
STZ1,0 13,4 27 29 2,9 0,95 151 - - 164 157 164 157 150 145 150 145 122 125 7 x 15 147 132
STZ1,3 14,9 32 35 3 0,95 175 - - 148 169 148 169 138 157 138 157 135 110 7 x 15 135 152
STZ1,6 17,4 21 37 2,4 0,96 195 - - 142 240 149 186 142 174 142 174 150 110 10 x 18 140 166
STZ2,0 21,5 27 33 2 0,97 195 - - 154 240 161 186 154 174 154 174 150 122 10 x 18 152 166
STZ2,5 21,5 39 43 2,4 0,97 195 - - 154 240 154 240 161 186 154 174 150 122 10 x 18 152 166

1) Values measured at room temperature            dimensions in mm


STZ graphic 2 - Single-phase control, isolating and safety transformer

Here is a hidden table in the mobile version. Click here to display it.
Type Total weight No-load losses Short-circuit losses Short-circuit voltage Efficiency factor a b1 c1 e f ø g b c b c b c b c b c
  kg W W %               12 V 12 V 24 V 24 V 42 V 42 V 110 V 110 V 230 V 230 V
STZ3,0 26 30 55 2,1 0,97 230 155 250 210 250 230 255 185 275 170 255 190 200 11 172 255
STZ4,0 35 38 88 2,2 0,97 230 180 250 235 250 255 255 210 275 200 255 190 200 11 200 255

1) Values measured at room temperature            dimensions in mm


STZ graphic 3 - Single-phase control, isolating and safety transformer

Here is a hidden table in the mobile version. Click here to display it.
Type
Total weight
No-load losses Short-circuit losses 1) Short-circuit voltage Efficiency factor a b c b c b c b c b c e f ø g b1 c1
  kg W W %     12 V 24 V 42 V 110 V 230 V          
STZ5,3 40 40 165 4 0,96 260 200 374 200 374 200 374 214 374 214 360 230 126 10 x 18 - -
STZ8,3 55 65 200 4 0,97 260 - - 230 374 230 374 244 374 244 374 230 156 10 x 18 - -
STZ13,3 80 95 265 3,5 0,97 320 - - 240 440 240 440 270 440 270 440 270 172 13 x 20 - -

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

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