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. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)Metal enclosure RAL 7035 (cat. C3 ISO 12994-2)
Protection degreeIP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08IP-23 / IK-08
CoolingANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANANAN
Ambient temperature40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC40ºC
Temperature riseClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass FClass 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 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 - 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
Weight7,6 kg13,2 kg24,8 kg28,8 kg40,8 kg45,2 kg61 kg73 kg89 kg106 kg117 kg137 kg157 kg174 kg237 kg279 kg323 kg366 kg414 kg514 kg612 kg754 kg855 kg1093 kg1185 kg1808 kg
Dimensions (AxBxCxDxE)194x175x220x165x100 mm 6Ø240x190x250x180x150 mm 6Ø240x190x250x180x150 mm 6Ø315x230x315x205x200 mm 6Ø385x260x384x245x250 mm 6Ø385x260x384x245x250 mm 6Ø458x340x500x300x300 mm 12Ø458x340x500x300x300 mm 12Ø528x418x644x375x345 mm 12Ø528x418x644x375x345 mm 12Ø597x415x710x375x345 mm 12Ø597x415x710x375x345 mm 12Ø597x415x710x375x345 mm 12Ø597x415x710x375x345 mm 12Ø795x550x970x500x415 mm 12Ø795x550x970x500x415 mm 12Ø795x550x970x500x415 mm 12Ø795x550x970x500x415 mm 12Ø795x550x970x500x415 mm 12Ø970x670x1250x582x470 mm 18Ø970x670x1250x582x470 mm 18Ø970x670x1250x582x470 mm 18Ø1200x760x1555x672x690 mm 18Ø1200x760x1555x672x690 mm 18Ø1200x760x1555x672x690 mm 18Ø1530x1000x1880x900x800 mm 20Ø
Efficiency (%)-----95,795,896,596,596,795,996,396,696,994,99595,59696,696,897,297,598,298,298,498,5
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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