Three-Phase Isolation Transformer – 25 kVA (Aluminium Windings, K4, Dyn11)

SKU: N/A

• 25 kVA three-phase isolation transformer
• Aluminium windings with K-Factor 4 for harmonic mitigation
• Dyn11 vector group for delta-wye configuration
• Selectable protection: IP00 (open) or IP23 (enclosed)
• Class H insulation, up to 50 °C ambient operation
• 96 % efficiency, 50/60 Hz

  • Description
  • Additional information

Description

isolation transformer delivers 25 kVA of clean, galvanically isolated power for demanding industrial applications. Constructed with high-efficiency aluminium windings and a K-Factor 4 rating, it effectively suppresses harmonics when paired with non-linear loads. The Dyn11 vector group provides a stable wye-delta configuration, and Class H insulation permits continuous operation in ambient temperatures up to 50 °C. Available in open-frame (IP00) or weather-proof enclosure (IP23), this transformer meets IEC 61558-1, IEC 61558-2-4, IEC 60076-1, and IEC 60601-1 standards, ensuring reliable, low-loss performance.
🔧 Specifications
• Rated Input Voltage: 3 × 400 VAC ± 10 %
• Rated Output Voltage: 3 × 400 VAC ± 10 %
• Rated Power: 25 kVA
• Rated Current: 3 × 36.1 A
• Insulation Class: H
• Maximum Ambient Temperature: 50 °C
• Efficiency: > 96 %
• Protection Degree: IP00 (open) / IP23 (with enclosure)
• Frequency: 50–60 Hz
• K-Factor: K4
• Windings: Aluminium
• Vector Group: Dyn11
• Dimensions (IP00): 480 × 244 × 480 mm
• Weight (IP00): 124 kg
• Dimensions (IP23): 700 × 470 × 730 mm
• Weight (IP23): 186 kg
• Standards: IEC 61558-1, IEC 61558-2-4, IEC 60076-1, IEC 60601-1
💡 Applications
• Isolation of industrial control circuits and sensitive instrumentation
• Power-quality improvement in harmonic-rich environments
• Safety isolation for medical and laboratory equipment
• Protection of motor drives and variable-frequency drives

Additional information

referance no

IT 0025000 – 23 – 000 – AL – 04

description

3Ph Isolation Transformer 25KVA-AL -K4 – DYN11

rated input voltage

3*400Vac +- 10%

rated output voltage

3*400Vac +- 10%

rated power

25KVA

Rated Current

3*36.1A

Insulation Class

H

Maximum Ambient Temprature

50C

efficiency

> 96%

Protection degree

IP00 Without Enclosure & IP23 With Enclosure

Frequency

50/60Hz

K- Factor

K13

Windings

Aluminuinm

Vector Group

DYn11

Dim of IP00

420*244*430

Weight of IP00

151.5KG

Dim of IP23

700*470*730

Weight of IP23

210KG

IEC Standared

IEC 61558-1 ,IEC 61558-2-4,IEC 60076-1,IEC 60601-1