AUTF FAMILY Autotransformers for solar inverters

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Dry type autotransformer.

All autotransformers are tropicalized with anti-flash varnish:

  • Protection against corrosive environments.
  • Greater electrical insulation.
  • High compaction power.
  • Noise level reduction.
  • Longer useful life of the product.
  • IP-23 enclosure, metal enclosure painted with RAL 7035 polyester resin (cat. C4 ISO 12994-2).

Safety class I

Includes lifting bolts from 50 kVA.

Tailor made if the standard specifications are not what is required.

  • These devices are used to reduce the output voltage of inverters from 800V to 400V. Therefore, achieving the working tension required by the client.
  • If you need other working voltages, they can be manufactured upon request.

Available accessories:

  • Class II.
  • Wheels
  • PT100, PTC or Bimetallic probes.
  • C5 paint.
  • Several RAL.
  • Electric temperature panel.
  • Anti-condensation system.
  • IP up to IP-65.

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Rating1 kVA2 kVA3,15 kVA5 kVA8 kVA10 kVA12,5 kVA16 kVA20 kVA25 kVA31,5 kVA40 kVA50 kVA63 kVA80 kVA100 kVA125 kVA160 kVA200 kVA250 kVA315 kVA400 kVA500 kVA630 kVA800 kVA1000 kVA
Input voltage800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V800 V
Output voltage400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V400 V
Frequency50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz50/60 Hz
Connection groupYN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0YN0
CoverMetal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)Metal enclosure RAL 7035 (cat. C4 ISO 12994-2)
Protection degreeIP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10IP-54/65 - IK-10
CoolingANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANAN
Ambient temperature45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC45 ºC
Temperature riseClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass HClass HClass HClass HClass HClass HClass HClass HClass HClass HClass HClass HClass H
InsulationClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass F - 155ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºCClass H - 180ºC
WindingsClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºCClass HC - 200 ºC
Test voltage3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)3 kV (1 min, 50 Hz)
StandardsIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 61558, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CEIEC/EN/UNE-EN 60076, CE
IncludeSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocksSilent blocks
Weight19,5 kg24 kg37 kg40 kg61 kg76 kg87,5 kg118 kg134 kg145 kg165 kg185 kg202 kg220 kg251 kg295 kg340 kg383 kg433 kg551 kg628 kg797 kg1186 kg1278 kg1933 kg2275 kg
Dimensions (AxBxCxDxE)330x284x463x230x200 mm 11Ø330x284x463x230x200 mm 11Ø510x362x689x320x250 mm 11Ø510x362x689x320x250 mm 11Ø510x362x689x320x250 mm 11Ø510x362x689x320x250 mm 11Ø510x362x689x320x250 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø694x413x764x370x350 mm 11Ø890x560x1148x520x426 mm 13Ø890x560x1148x520x426 mm 13Ø890x560x1148x520x426 mm 13Ø890x560x1148x520x426 mm 13Ø890x560x1148x520x426 mm 13Ø972x740x1480x660x470 mm 17Ø972x740x1480x660x470 mm 17Ø972x740x1480x660x470 mm 17Ø1394x870x1762x810x690 mm 17Ø1394x870x1762x810x690 mm 17Ø1394x870x1762x810x690 mm 17Ø1640x1226x1770x1110x800 mm 17Ø
Efficiency (%)-----96,196,596,696,896,296,696,897,197,194,99595,5969696,897,297,598,298,298,498,5
Noise level (dB)-----< 45< 45< 45< 45< 45< 45< 45< 45< 45< 55< 55< 55< 55< 55< 55< 55< 55< 65< 65< 65< 65
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