Datasheet

Control- and isolating transformer
ST 320/69/23
Advantages
Very good switch-on behaviour thanks to reduced starting currents
High power density due to a compact construction design
Primary side ±5 % tappings for voltage adjustment
Very good corrosion protection and low noise thanks to vacuum
impregnation
Contact protected screw connection terminals complying with UVV BGV A3
Simple mounting thanks to robust metal footplate with oval slots
Applications
As a control transformer for the electrical isolation of the input and output
sides. The construction of the transformer to supply control systems according
to VDE 0113 is designed.
As an isolating transformer for the safe electrical isolation of the input and
output sides. The transformer may be used to set up protective separation as a
protective measure in accordance with VDE 0100.
As a safety isolating transformer for the safe electrical isolation of the input
and output sides. The transformer is suitable for creating SELV and PELV
circuits because of the limit on the output voltage.
Sample application
Standards Z
Isolating transformer
to: VDE 0570 Part 2-4, DIN EN 61558-2-4, EN 61558-2-4, IEC 61558-2-4
Control transformer
to: VDE 0570 Teil 2-2, DIN EN 61558-2-2, EN 61558-2-2, IEC 61558-2-2
Approvals J | " Z
Picture shows ST 160/23-23