AT-23 SERIES
THREE PHASE AUTOTRANSFORMERS 415/220 V AC

• Dry type transformer.
• Norms: According to EN 61558-2-13.
• Natural cooling by air.
• Transformer for indoor use only.
• Reversible Voltages 415/220 V AC.
• Windings: Class H (180º).
• Insulation Class F
• For continuous duty.
• Windings vacuum impregnated.
• Frequency: 50-60 Hz. or 60 Hz.
• Degree of protection: IP-23.
• YO Type connection (with access to neutral)
• Class I.
• Not resistant to short-circuits.
• Dielectric Strength: 2500 V.
• Two cable glands are included for installation.
• Models from 5 Kva to 160 Kva.
• Models from 5 Kva to 20 Kva have two options for holing (side and in front) to place the cable glands.

*Other voltages arrangements available according to customers requirements
*All specifications listed in this brochure are subject to change without notice

Technical specifications