Three-phase isolating transformers with the power between 0,05 and 40 kVA


Isolating transformers are assigned for supplying electric devices, if separation of electrical circuits required. In standard design, the transformers are adjusted to fastening by means of screwed angles.
The windings terminals may be placed on one side only, or on both sides of a transformer. Primary and secondary windings are separated by copper shield.
Upon request, the transformers may be assembled in enclosures with the protection degree of IP 23, IP 44 and IP 54 .

Technical data

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

B(130oC) - standard up to 5 kVA; F(155oC) - standard above 5 kVA

Climatic class
/environmental class

C1/E0 - land design; C2/E1 - maritime design

Ambient temperature 40oC
Protection degree IP 00
Protection class I
Frequency 50/60 Hz
Vector group Dyn5 - standard
Primary voltage up to 1000 V
Secondary voltage up to 500 V
Terminals screw terminal blocks with the cross section from from 4 mm2 up to 150 mm2 or copper bus bars
Fastening by means of angles