Field of use:

The 4 KVA transformer is intended to supply the electric heating installations of the switch exchangers and to insulate them from the CED track circuits.


Technical-constructive parameters:

• Supply voltage: 220 V a .;
• 50 Hz frequency;
• Apparent power: 4 KVA / 2 x 2 KVA;
• Secondary voltage: 2 x 220 V;
• Dry insulation resistance at least 6 MOhm;
• The transformer is equipped with strips with elastic clamps, a switch with a fuse of 20 A for the supply circuit and 2 switches with fuses of 10 A, each for the separate supply of the resistors of the switch heaters;
• Overall dimensions: 270 x 240 x 330 mm;
• Weight: 39 Kg.