Transformer Three-phase 400V / 400V

Transformateur Triphasé 400V / 400V,Transformateur Triphasé 400V 400V,Transformateur Triphasé 400V
Primary : 400V   -   Secondary : 400V
Ref : 1T631-TN-N112-C
Price : 464,00 €
Disponibilité : 1 to 2 weeks

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This three-phase power isolation transformer is dedicated solely to electrical insulation requirements. With a 400V primary and 400V secondary voltage (three-phase 400V / 400V transformer), it is neither a step-down nor a step-up transformer. With its substantial 3,000V galvanic isolation, it is ideal for isolating your three-phase 400V power networks.

Available in a wide range of power ratings, up to several hundred kVA, it is generally supplied in an enclosed version for installation in all your technical rooms, or next to your machines or inverters.

If you require a version without an enclosure, simply select the Protection rating (IP) in the product specifications.

If you cannot find the version that suits you, do not hesitate to send us a specific request - we can do almost anything!

As this product has no adjustment taps, we have designed it to be tolerant to over-excitation. This tolerance has its limits, so do not hesitate to contact us if your network voltage is high, if harmonics are present, or for any advice on a specific installation.

Technical details

Image des cotes
Input / Primary
400V D
Sortie / Secondaire 1
400V Y+N 0.9A
Winding material
Copper
Nom. Power
630 VA
Dielectric P/E (V)
2 500V
Dielectric S/E (V)
2 500V
Insulation class
I
Coupl. Complet
Dyn11
Frequency (Hz)
50-60Hz
Iron Losses (W)
17.2
Hot Winding Losses (W)
46.4
No-load U₂ (V)
425.7V
Voltage Drop (%)
6.43
RoHS Compliant
Yes
Lifting Ring
No
Option_Screen
No
Dimensions: L x W x H (mm)
180 x 105 x 177
Mounting: X x Y x Ø (mm)
145 x (61 - 75) x 7
Weight (kg)
8
Ventilation Clearance (mm)
50
Prim. Protection (rec.)
DJ D - 2A
Sec. Protection (rec.)
DJ C - 1A

Notes and options

General Specifications

  • Efficiency from 94 to 98% depending on power rating.
  • Low losses and low voltage drop, from 2 to 4% depending on power rating.
  • High-quality vacuum impregnation.
  • Operating temperatures of 35°C or 40°C.
  • IP00 or IP21 with textured paint on RAL7035 enclosures.
  • Connections via terminal blocks or busbars depending on power rating.
  • Dielectric strength: from 2,500 to 4,500V depending on reference.
  • Temperature rise class: B, F or H depending on reference.
  • Copper or aluminium winding depending on power rating.
  • Environmentally friendly: RoHS compliant and solvent-free varnish.

Available Options

  • Addition of electrical protection (circuit breakers, fuses, isolators).
  • Voltage adaptation up to 1,000V.
  • Addition of adjustment taps.
  • Addition of temperature sensors (NC, NO or PT100).
  • Adaptation to higher frequencies (400Hz).
  • Adaptation for harmonics (K-factor K7, K13 etc.).
  • Adaptation to extreme ambient temperatures.
  • Variable IP rating (IP00 to IP55).
  • Addition of silent blocks, casters, rollers.
  • Enhanced tropicalisation.
  • Special paint for enclosures.
  • Custom design for tailored dimensions.

⚠ Important note: Some of the options you may select could affect the dimensions and weight of the autotransformer. Please contact us for further information.

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