Three-phase isolation transformer 400V -> 400V +N
Three-phase transformer 3x400VAC 3x400VAC+N available on our shop. Shipping from our company within 48 hours, French manufacturing in Gard. For more details, do not hesitate to contact us (see our opening hours).
| Weight | 3 kg |
|---|---|
| Dimensions | N/A |
Fiche technique non disponible pour le moment. Faites une demande via notre page de contact.
Three-phase Transformer 400V -> 400V + N
Three-phase isolation transformer in an enclosure, IP23 – IK08 protection rating, available in all power ratings according to your needs.
100% French manufacturing 🇫🇷, carried out in our ABL Transfo workshops in Gailhan (30260), guaranteeing irreproachable quality and perfect compliance with current standards. Every transformer leaving our workshop is 100% electrically tested.
- Input voltage: 3 x 400 VAC
- Output voltage: 3 x 400 VAC + N
- IP23 enclosure finish
- Primary wiring: Delta △
- Secondary wiring: Star ★ + N
- Available wiring: DYN11 ; YND ; ZZYN (extra cost)
Functions and uses of our three-phase isolation transformer
This transformer is designed to electrically isolate an installation from the supply network and/or generate a neutral point when it is not available.
It is particularly suitable for industrial, tertiary or automation installations requiring galvanic separation in order to improve the safety and reliability of the network.
Thanks to their versatility and proven reliability, these three-phase isolation transformers are used in a multitude of sectors.
They are used in industry as well as in environments requiring high electrical stability or reinforced equipment protection.
Among the most common areas of application:
- Aeronautics and aviation: secure power supply for test benches and ground equipment.
- Industry and production: protection of machine tools, automation, drives, and production lines.
- Medical sector: isolation of sensitive equipment and maintaining power quality in critical environments.
- Automation and robotics: power stability for PLCs, robots, and control systems.
- Tertiary buildings and technical infrastructures: reduction of electromagnetic interference in complex electrical networks.
And more generally, in any environment requiring galvanic separation, neutral creation, or improvement of energy quality.
Technical advantages of the three-phase isolation transformer
- Reduction of harmonics and electromagnetic interference, for more stable operation of your equipment.
- Elimination of residual voltages on the neutral: in this case, the neutral must be connected to earth to guarantee optimal potential stability.
- Total galvanic isolation between primary and secondary, limiting the risks of current feedback or disturbance.
- Robust and ventilated construction under IP23 IK08 metal enclosure, suitable for demanding environments.
- Customization possible: power, voltage, adjustment taps, mounting accessories or custom enclosure. Access the configurator >> Three-Phase Transfo Creator
Ultra-fast shipping times for the three-phase range
- between 1 and 50 kVA: Dispatch within 3 days.
- between 50 and 100 kVA: Dispatch within 6 days
- over 100 kVA: between 4 and 5 weeks, contact us for emergencies
Transformer coupling 400V 400V + N
The standard coupling of our three-phase transformer 400 400 + N is DYN11 (delta on primary, star + neutral on secondary). Other couplings are possible according to your needs, please contact us for any wiring different from DYN11.
| Primary side | Secondary side |
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Table of three-phase models with dimensions and weight by power rating
Find below the table of weights and dimensions by references and power ratings.
| Reference | Model | Weight | Dimensions |
|---|---|---|---|
| TTI400400N-1000-23 | 1000 vA (1kVA) | 25 kg | 340 x 240 x 370 mm |
| TTI400400N-2000-23 | 2000 vA (2kVA) | 32 kg | 340 x 240 x 370 mm |
| TTI400400N-2500-23 | 2500 vA (2.5kVA) | 36 kg | 340 x 240 x 370 mm |
| TTI400400N-3150-23 | 3150 vA (3.15kVA) | 38 kg | 340 x 240 x 370 mm |
| TTI400400N-4000-23 | 4000 vA (4kVA) | 43 kg | 340 x 240 x 370 mm |
| TTI400400N-5000-23 | 5000 vA (5kVA) | 46 kg | 340 x 240 x 370 mm |
| TTI400400N-6300-23 | 6300 vA (6.3kVA) | 60 kg | 460 x 300 x 470 mm |
| TTI400400N-8000-23 | 8000 vA (8kVA) | 79 kg | 460 x 300 x 470 mm |
| TTI400400N-10000-23 | 10,000 vA (10kVA) | 89 kg | 520 x 320 x 520 mm |
| TTI400400N-12500-23 | 12,500 vA (12.5kVA) | 94 kg | 520 x 320 x 520 mm |
| TTI400400N-16000-23 | 16,000 vA (16kVA) | 104 kg | 520 x 320 x 520 mm |
| TTI400400N-20000-23 | 20,000 vA (20kVA) | 124 kg | 520 x 320 x 520 mm |
| TTI400400N-25000-23 | 25,000 vA (25kVA) | 169 kg | 520 x 320 x 520 mm |
| TTI400400N-30000-23 | 30,000 vA (30kVA) | 190 kg | 520 x 320 x 520 mm |
| TTI400400N-40000-23 | 40,000 vA (40kVA) | 205 kg | 520 x 320 x 520 mm |
| TTI400400N-50000-23 | 50,000 vA (50kVA) | 275 kg | 715 x 710 x 790 mm |
| TTI400400N-63000-23 | 63,000 vA (63kVA) | 220 kg | 715 x 510 x 790 mm |
| TTI400400N-80000-23 | 80,000 vA (80kVA) | 300 kg | 715 x 510 x 790 mm |
| TTI400400N-100000-23 | 100,000 vA (100kVA) | 345 kg | 715 x 510 x 790 mm |
| TTI400400N-125000-23 | 125,000 vA (125kVA) | 360 kg | 795 x 525 x 890 mm |
| TTI400400N-160000-23 | 160,000 vA (160kVA) | 480 kg | 910 x 660 x 970 mm |
5 reviews for Three-phase isolation transformer 400V -> 400V +N
Three-phase isolation transformer 400V -> 400V +N 
Livraison rapide, produit conforme et bien emballé. Installation sans difficulté, parfait pour créer un neutre. Le service téléphonique est top, fabrication française en plus. Je recommande sans hésiter.
Produit reçu rapidement, très bien emballé. Fonctionne parfaitement sur notre installation industrielle. Fabrication sérieuse, rien à signaler après plusieurs semaines d’utilisation. Content d’acheter français.
Produit conforme à la description, fabrication robuste et délai respecté. Service client à l’écoute, installation réalisée sans souci. Très satisfait de la qualité, matériel professionnel, rien à dire de plus.
J’ai commandé ce transformateur d’isolation en 10kVa pour alimenter une machine triphasée avec un convertisseur de phase.
Sans transformateur d’isolation, le différentiel 500mA sautait dès la mise sous tension (probablement bruit HF induisant des fuites à la terre par les capa de filtrage), avec le transformateur d’isolation (mais la terre bien branchée partout !) plus aucun problème, même le différentiel 30mA ne bouge pas. Donc plus que satisfait.
A savoir, une fois le couvercle enlevé, il y a des anneaux de levage pour manutentionner le transformateur (parce que ça pèse son poids, quand même 😉 ).
Bonjour MR LEGRAND,
Toute notre équipe vous remercie d’avoir pris de votre temps pour nous faire un retour.
Nous sommes ravis d’avoir pu résoudre vos problèmes et restons à votre disposition.
Excellente journée et meilleures salutations,
S LANCRY
Bonjour MR LEGRAND,
Toute notre équipe vous remercie d’avoir pris de votre temps pour nous faire un retour.
Nous sommes ravis d’avoir pu résoudre vos problèmes et restons à votre disposition.
Excellente journée et meilleures salutations,
S LANCRY