Transformers on El and Ul core

Safety isolating transformers

They are used to change the electrical voltage to the desired value at the input or output, where the use of safety voltage used for the operation of electrical appliances or the electrical network is prescribed.

Type range: TR 9402 to TR 9409, TR 9402/1 to TR 9409/1

We also produce atypical transformation ratios according to the customer's request.

TYPE RANGE                    
Primary voltages
CAPACITY 
[VA]
CORE TYPE OUTPUT VOLTAGE  
AND CURRENT
[V/A]
  230V 50Hz 400V 50Hz   DIN 24V/A 12V/A
Transformer TR 9402 -10 TR 9402/1 -10 10 EI 48 / 20 24 / 0,41 12 / 0,83
Transformer TR 9402 -20 TR 9402/1 -20 20 EI 60 / 25 24 / 0,83 12 / 1,66
Transformer TR 9402 -30 TR 9402/1 -30 30 EI 75 / 20 24 / 1,25 12 / 2,50
Transformer TR 9402 -50 TR 9402/1 -50 50 EI 75 / 25 24 / 2,08 12 / 4,16
Transformer TR 9403 -80 TR 9403/1 -80 80 EI 84 / 35 24 / 3,33 12 / 6,66
Transformer TR 9401 -100 TR 9401/1 -100 100 EI 84 / 40 24 / 4,16 12 / 8,33
Transformer TR 9404 -125 TR 9404/1 -125 125 EI 96 / 35 24 / 5,20 12 / 10,41
Transformer TR 9404 -160 TR 9404/1 -150 160 EI 96 / 45 24 / 6,25 12 / 12,50
Transformer TR 9405 -200 TR 9405/1 -200 200 EI 96 / 50 24 / 8,33 12 / 16,66
Transformer TR 9409 -250 TR 9409/1 -250 250 EI 120 / 40 24 / 10,41 12 / 20,83
Transformer TR 9409 -315 TR 9409/1 -315 315 EI 120 / 50 24 / 13,12 12 / 26,25
Transformer TR 9409 -400 TR 9409/1 -400 400 EI 120 / 70 24 / 16,66 12 / 33,33
Transformer TR 9409 -500 TR 9409/1 -500 500 EI 150 / 50 24 / 20,83 12 / 41,66
Transformer TR 9409 -800 TR 9409/1 -800 800 EI 150 / 80 24 / 33,33 12 / 66,60
Transformer TR 9409 -1000 TR 9409/1 -1000 1000 EI 192 / 60 24 / 41,6 12 / 83,30
Transformer TR 9409 TR 9409/1 1400 EI 192 / 80 24 / 58,3 12 / 116,6
Transformer TR 9409 TR 9409/1 1600 EI 192 / 80 24 / 62,5 12 / 125
Transformer TR 9409 TR 9409/1 2000 EI 192 / 100 24 / 83,3 12 / 166,6 
Transformer TR 9409 TR 9409/1 2500 EI 192 / 130 24 / 104,1 12 / 208,3 
THERMAL CLASS: F155°C
VOLTAGE WITHSTAND: PRI/SEC/CORE 4,75kV 50Hz
SHORT-CIRCUIT RESISTANCE: NOT SHORT-CIRCUIT RESISTANT
TEMPERATURE RISE (HEAT RUN): max. 85°C
PROTECTION CLASS: I.
PROTECTION: IP00
AMBIENT TEMPERATURE: ta40

Our recommendations

  • protection by "T" tube fuses as indicated on the manufacturer's label
  • based on the customer's request, we can install a thermal fuse for 125 °C - returnable
  • technical changes and transformation ratios are possible based on customer requirements