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5 kVA Isolation Transformer, 3 phase, 480V to 400V

4.8 out of 5 based on 5 reviews | Write a review
$1,776.92
3 phase 5 kVA isolation transformer is designed to step down/ up the voltage 480V to 400V, and widely used in various power supply sites with frequency 50Hz or 60Hz.
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SKU: ATO-T-SG5KVA
30-day Returns
Delivery date: 10-20 days

The 5kVA isolation transformer is high quality, three phase, 480V primary voltage and 400V secondary voltage, manufactured direct sale. Fully compliant with reduced low voltage regulations, is a non-ventilated isolation transformer rated for hazardous locations as well as harsh industrial environments.

5 kVA Isolation Transformer Specifications

Basics Model ATO-SG5KVA
Phase 3 phase
Capacity 5 kVA
Weight of Aluminium Wire Transformer Open type: 55kg
Protected type: 70kg
Weight of Copper Wire Transformer  Open type: 60kg
Protected type: 80kg
Technical Parameters Primary Voltage 480V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
Secondary Voltage 400V (Optional: 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 480V)
Frequency 50Hz / 60 Hz
Winding Material Aluminium/Copper wire (Optional)
Work Efficiency ≥95%
Insulation Resistance ≥50 MΩ
Electrical Strength 3000V AC/1 min
Noise <35-65dB (1 meter)
Insulation Grade H level
Wiring Mode Dyn11
Cooling Mode Dry type air cooling
Overload Capacity Allow more than 1.2 times rated load to work for up to 4 hours
Enclosure Protection Grade IP 24
Certificate CE, ISO
Warranty 12 months
Working Environment Temperature -15℃~+40℃
Humidity ≤90%RH, without condensation
Altitude <1000m, non corrosive gas and conductive dust

Note:
*Transformer can only convert voltage and CANNOT convert frequency.
*Transformer CANNOT convert single phase voltage to 3 phase voltage.
*Input/output voltage, power rating and whether with shell of all transformers, can be customized according to clients' requirements.

3 Phase Isolation Transformer Schematic Diagram

ATO isolation transformers schematic diagram

3 Phase Isolation Transformer Details

3-phase isolation transformer details

5 kVA Isolation Transformer Installation Dimension

3 phase isolation transformer dimension

Aluminium Wire Transformer Size Copper Wire Transformer Size
Open type: a*b*c=380*200*380mm Open type: a*b*c=300*170*310mm
Mouting size: d*e=260*110mm Mouting size: d*e=180*140mm
Protected type: A*B*C=300*440*500mm Protected type: A*B*C=300*440*500mm

Tips: Dyn11 Wiring Method of 3 Phase Step up & Step down Isolation Transformer

Dyn11 is ATO step up/down isolation transformers wiring method. D represents that the primary winding adopts triangular form wiring, Y represents the secondary measuring winding adopts star form wiring, n represents to lead the neutral line, 11 represents that the secondary winding phase angle lags 330 degrees compared with the first winding. If use clock representation method and assume the primary winding locates at the center of 12 o'clock, then the secondary winding locates at 11 o'clock position with an included angle of 30 degrees.

Existing reviews of 5 kVA Isolation Transformer, 3 phase, 480V to 400V
Is your isolation transformer bidirectional?
For example, if your transformer is to convert 3ph, 220V primary to  3ph, 400V secondary, and I apply 3ph, 400V at secondary side, will I get 3ph, 220V at primary side?
From: Charlie Chisholm | Date: 14/10/2019
Was this review helpful? Yes No (0/0)
ATO Responded
Our Isolation Transformer can be used in both directions, but the output voltage will be reduced by 2% incase of reverse. Per your example, the voltage of 220V will become 215V.
Very affordable isolation transformer
This is very affordable isolation transformer, I bought this to work mainly up scaling 110v to 220v, it has done its job and has worked alot better than the items found on other website.
From: Tatsuo Hase | Date: 06/11/2018
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Do you have warranty policy
Do you have warranty policy for this isolation transformer?
From: Nicholas | Date: 09/07/2018
Was this review helpful? Yes No (0/0)
ATO Responded
Dear friend, ATO offers at least 1 year warranty for all isolation transformers, and full lifespan aftersales service.
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