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5KVA Indoor Dry Type 3 Phase Auto Transformer 450V/428V/405V 240Y/139V

Basic Information
Place of Origin: CHINA
Brand Name: WINLEY
Certification: ISO,CE
Model Number: SG-5KVA
Minimum Order Quantity: 1unit
Price: $20-$8000
Packaging Details: Plywood case
Delivery Time: 10-15days
Payment Terms: T/T
Supply Ability: 1000units/month
Detail Information
Usage: Electronic Frequency: 50/60Hz
Primary Voltage: 450V/428V/405V Secondary Voltage: 240Y/139V
Type: Indoor Terminal: Safety Bolt
Material: Copper Efficiency: >90%
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5KVA 3 phase auto transformer


5KVA Indoor transformer


3 phase auto transformer 450V

Product Description

5KVA Indoor Three Phase Dry Type Transformer 450V/428V/405V 240Y/139V



1. Feature


■ High reliability

The structure is reasonable, the efficiency is high, the waveform is not distorted, the use is convenient and reliable, and it can run for a long time. The performance indicators fully meet the requirements of the GB/IEC dry-type power transformer standard. It can be isolated from the main grid power supply, anti-impact, anti-interference, and anti-lightning.




Product Name Three phase dry type transformer
Product Model SG-5KVA
Winding Material Enameled copper wire
Capacity 5KVA
Input Voltage 450V/428V/405V
Output Voltage 240Y/139V
Frequency 50/60Hz
Connection Type DYN1
Insulation Level F/H
Enclosures Protection Level IP00
Pressure-tight Test 3500V/min
Insulation Resistance >100MΩ
Ground Resistance 25A<100milliohm
Induction Withstand Voltage Test 125Hz / 830V / 60s
Cooling Method Natural or air cooling
Temperature Rise ≤115K
Transformation Ratio <3%
Air Carrying Current <3%
Impedance Voltage about 4.5%
Total Losses 4%
Efficiency 80%--99%
Operating Temperature -15℃~40℃ (40℃, 90%R.H., 56days)
Storage Temperature -25℃~100℃(40℃, 90%R.H., 56days)
Certificate CE,ISO
The technical parameter for reference only, for exactly technical information, please feel free to contact us!


5KVA Indoor Dry Type 3 Phase Auto Transformer 450V/428V/405V 240Y/139V 05KVA Indoor Dry Type 3 Phase Auto Transformer 450V/428V/405V 240Y/139V 1



1. Q: Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

2. Q: What is the lead time?

A: Sample time 3-7 days, we usually ship by DHL, UPS, FedEx,etc. Mass production time 7-25 days.

3. Q: How long is the warranty?

A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.

4. Q: Is OEM/ODM available?

A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.

Customized services:

a. Customized color and special function.

b. Customized box.

c. Print customer's logo(MOQ:≥10pcs).

d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.

5. Q: How to control the products quality?

A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.

Contact Details

Phone Number : 86-18650108051

WhatsApp : +8618650108051