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Quick Details

  • Place of Origin: Anhui, China (Mainland)
  • Brand Name: Chesen
  • Model Number: 4000VA
  • Usage: Power
  • Phase: Three
  • Coil Structure: Other
  • Coil Number: Other
  • Isolation class: E

Packaging & Delivery

Packaging Details: cartons on pallet
Delivery Detail: 15 days


4KVA Three Phase Transformer
Three phase SG isolation transformer, 500VA-400KVA
Three phase SOG auto-transformer, 1KVA-800KVA

4KVA Three Phase Transformer
Three phase SG isolation transformer, 500VA-400KVA
Three phase SOG auto-transformer, 1KVA-800KVA


The mode of connection can select lead wire,raw copper wire,terminal and brass crew.



Basic Data:
Input Voltage:440V,420V,400V,380V,220V,110V
Output Voltage:380V,220V,200V,190V,120V,110V,100V
Power: Three phase isolation transformer:500VA-400KVA
Three phase auto transformer:1KVA-800KVA
Isolation Class:E
Ambient temp: -25 degree celcius to +55 degree celcius
Type of cooling system: natural air drying,dry type
Winding conductor material;usual use copper,can use aluminum if you have special requirements


This three phase isolation transformers and three phase auto transformers are widely applied to  three phase power supply of import-export equipment, safeisolation power supply, step up-down power supply, rectifier equipment power supply, detecting system, power supply,UPS power supply,CNC machine and kinds of machinery power supply.



1)  High level of isolation
2) High quality neutral-ground bond
3) High level of common-mode noise rejection
4) Conversion from Delta to Wye or the other way around
5) Easy to change voltage taps
6) Custom design for specific system.



Operating environment:
1)Temp.:The ambient temperature can not over +40°C.
2)Altitude: Mounting location can not exceed the altitude of 2000m
3)Relative humidity: Maximum 90%
4)The site not attack by rain and snow
5)The medium which no explosion danger, no corroding metal, no electrical breakdown.


Testing Items:
No-load Test(No-load Current, No-load Voltage, No-load Loss)
Load Test (Load Voltage, Temperature-rise)
Inductive Voltage Test
DC Resistance Test
Safety Test


The certificate of our transformer has CE CQC RoHs UL



The above-mentioned single phase transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard.






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