Single-phase cast resin transformers ET1KOL** for railway engineering

The technical solution was worked out bearing in mind the application of the transformers in the systems for protective separation of electric heaters for heating up EOR crossovers from supply devices near the tracks. The transformers are adjusted for fastening in hanging position, in the EGC-102 boxes near the tracks. The fastening slots are placed in accordance with the standard hole spacing used in railway devices.

Single-phase cast resin transformers for railway engineering ET1KOL | ELHAND Transformatory

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Product for:


Design Isolating transformers ET1KOLŻ are produced in accordance with requirements of EN/IEC 61558-2-4
Insulation class


Climatic class
/environmental class


Ambient temperature 10oC
Protection degree IP 00
Protection class II
Frequency 50 Hz
Primary voltage 220 V or 230 V
Secondary voltage 220 V or 230 V
Terminals screw terminals with cross section 10 mm2
Fastening by means of angles


Technical sketch

Standard design Standard design Standard design
Standard design
Connection diagram
Connection diagram


Dimension table

Technical data of single-phase isolating transformers fro railway engineering ET1KOL

Type Power
ET1KOLŻ - 1,8 1,8 200 210 295 168 105 128 210 85 170 30 9 21
ET1KOLŻ - 2,5 2,0 200 235 280 200 105 138 235 85 170 30 11 28


Manufacturer reserves the right to make changes resulting from the continuous development of products offered.

If requested in advance, it is possible to manufacture transformer in other version.

M. Łukiewski,
G. Kamiński
NS 01/2003
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