Autotransformer
AT3 15-69-4
Advantages
Low weight and small size (compared to isolating transformers)
Very high efficiency
Patented assembly technology to lower heat losses
Very good corrosion protection and low noise thanks to vacuum
impregnation
Fixed, contact protected screw connection terminals complying
with UVV BGV A3
Multifunctional fixing rails with 12 oval slots
Enlarged fixing rail for easy installation from above
Integrated crane eyes
Applications
Autotransformer for adjustment of the voltage on the input and output sides
with no requirement for electrical isolation.
Sample application
Picture shows AT3 2-20/21-4
Standards
Z
Approvals
? W
Z
Autotransformer
to: VDE 0570 Teil 2-13, DIN EN 61558-2-13, EN 61558-2-13,
IEC 61558-2-13, UL 5085-1/-2, CSA 22.2 No.66
UL 5085-1/-2, CSA 22.2 No.66