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STR - Increased currents

Excess charge for higher currents
larger dimensioned terminals for
STEZ, STEN, STENE, STZ, ET, ETSP, DTZ, DT, DTSP

When selecting a transformer, the input voltages, the output voltages and the requested output must be considered. The basic price of the selected transformer is always related to a specific current (refer to order indications, column `Price for current up to`). If, due to selected output and voltage, the actual current exceeds the output of the basic type, an excess charge will be added.

Sample order

  • Selected transformer STZ4,0(400/230), max. current: 25 A;
    4000 VA: 230 V (:√3*) = 17,4 A < 25 A
    No excess charge as the current is in the permissible range
  • Selected transformer STZ4,0(400/110), max. current: 25 A;
    4000 VA: 110 V (:√3*) = 36,4 A > 25 A larger design necessary
  • Select from the table: larger design up to 63 A: type affix + STR25/63, excess charge 12,60 Euro

(*) for three-phase current

 
Type Price
per unit
Type Price
per unit
  Euro   Euro
Larger design
for currents up to 63 A
  Larger design
for currents up to 100 A
 
+STR16/63 20,20 +STR16/100 29,60
+STR25/63 13,50 +STR25/100 29,60
-   +STR63/100 16,30
Larger design
for currents up to 320 A
  Larger design
for currents up to 630 A
 
+STR16/320 124,00 +STR16/630 201,60
+STR25/320 121,70 +STR25/630 178,80
+STR63/320 112,40 +STR63/630 171,80
+STR100/320 97,20 +STR100/630 157,50
+STR200/320 71,90 +STR200/630 144,40
-   +STR320/630 136,00
-   +STR400/630 116,80
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