Single-phase transformers with standard EI shape lamination with composite core are produced in accordance with ČSN EN 61 558 in any voltage transfer combination between 1 – 1 000 V, frequency 50/60 Hz, covering IP00, terminals IP20, isolation class B and maximum ambient temperature 40 °C. Their sizes and rated outputs are shown in the table.
Different options are possible according to customer’s demand. For example: screening, higher temperature class, or ambient temperature, fuse on primary or secondary side etc. The power network voltage may vary ±10%, this should be considered to transformer power rating designation.
Design:
- C – composite core with screw terminal block
- SP – composite core with screw terminal block with fuse holder
- W – composite core with transformer terminal block
