3KVA 3 phase autotransformer

3KVA 3 phase autotransformer

Shuogong Power is a leading 3KVA 3 phase transformer manufacturer in China.
3KVA 3 phase transformer rated at 3000VA can step down any input voltage to usable range output
For example, step down 480V to 240V, step down 480V to 120V, etc. You can customize the 3KVA transformer to meet your needs according to the voltage you need.

A 3 phase autotransformer with a total power of 3KVA can meet the voltage requirements of your equipment.

3KVA 3 phase autotransformer can step down any input voltage to the range you need, such as 320V to 200/220V, 480V to 240V, 480V to 120V

Shuogong Power is a leading transformer manufacturer in China, here you can get great prices from transformer manufacturers.

The function of the dry-type three phase transformer is to step down, and the primary and secondary windings are insulated separately.

Our dry-type transformers are available in copper wire and aluminium wire. And you can also choose with or without a case.


Model SOB-3KVA
Phase 3 Phase
Capacity 3 kVA
Input Voltage AC 380V(optional)
Output Voltage (Optional) AC 220V, 200V(optional)
Frequency 50Hz / 60Hz
Winding Material (Optional) Aluminum Wire, Copper Wire
Cooling Method Self-Cooling or Wind-Cooling
Working Efficiency ≥98%
Protection Grade IP21
Waveform Distortion No distortion (compared with output wave)
Insulation Resistance ≥ 150MΩ
Wiring Yn0
Electrical Strength Power frequency sinusoidal voltage 3000V lasts for 1 minute, no breakdown and flicker
Overload Protection Can withstand instantaneous 2 times the rated current
Moisture-Proof Type (Optional) Open type, sealed type
Ambient Temperature -20℃ ~ +45℃
Altitude ≤ 2500m
Relative Humidity 0-95%
Noise ≤35dB (within 1 meter)
Design Service Life 10+ years
Use Environment No explosion, rain and snow corrosion place, and no gas and conductive dust in the medium that can corrode metal and damage insulation
Weight 23 kg
Dimension 230*130*195 mm

3KVA 3 phase autotransformer price:

The retail price of a 3KVA 3 phase autotransformer on the market is usually $1000-1200.

Here you will get exclusive preferential prices for transformer manufacturers.

Contact us now to get your 3KVA 3 phase transformer discounted price.


3KVA 3 phase autotransformer can be used in CNC production equipment, SMT, printing machine, EDM machine, automatic plug-in machine, precision measuring equipment, laser cutting machine, plastic molding machine, medical monitoring system, PCB drilling machine, laboratory equipment, Military Instrumentation Control Center, etc.

3KVA 3 phase autotransformer advantages:

  • 3KVA three phase autotransformer has sufficient power, and the coil adopts insulated H-class enameled wire, with small no-load current and low loss.
  • The dry type transformer has built-in silicon steel sheet, which has good magnetic flux performance, high heat dissipation coefficient and low magnetic loss.
  • The autotransformer adopts electrophoresis technology fixture, with no burr on the edge, rounded corners to prevent collision and not easy to corrode.
  • Tin-plated copper tube terminals and rail-type wiring ports are convenient for wiring and ensure that the power-on overload capacity is improved to the extreme.

Wiring diagram of 3KVA 3 phase autotransformer:

The wiring method of the 3 phase autotransformer is the same, mainly the input and output 2 wiring ports, the following is the wiring diagram of the 3KVA 3 phase transformer.

Wiring diagram of 3KVA 3 phase autotransformer :



There are no reviews yet.

Be the first to review “3KVA 3 phase autotransformer”

Your email address will not be published. Required fields are marked *


Send Your Inquiry Today

Scroll to Top

Send Your Inquiry Today