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4000VA Isolation Single Phase Control Transformer 480V/440V 20/30/80V

Basic Information
Place of Origin: CHINA
Brand Name: WINLEY
Certification: ISO,CE
Model Number: BK-4000VA
Minimum Order Quantity: 50units
Price: $20-$8000
Packaging Details: Plywood case
Delivery Time: 10-15days
Payment Terms: T/T
Supply Ability: 10000units/month
Detail Information
Primary Voltage: 480V/440V Secondary Voltage: 20/30/80V
Type: Isolation Power: Upto 800KA
Frequency: 50/60Hz Standard: IEC Standard,UL1585/UL5085-3
Material: 100% Copper Wire Insulation Class: F/H
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4000VA Single Phase Control Transformer


Copper Wire 4000VA Transformer


800KA Single Phase Control Transformer

Product Description

4000VA Isolation Single Phase Control Transformer 480V/440V 20/30/80V



1. Feature


The control transformer is mainly suitable for AC 50Hz (or 60Hz), voltage 1000V and below circuits, and can work continuously for a long time under rated load. Usually used in machine tools and mechanical equipment as electrical control lighting and indicator lights power supply.

The control transformer is a small dry-type transformer. It is often used as a power source for local lighting, signal lights or indicator lights, and as a power source for control circuits in electrical equipment.




Product Name Single phase Control transformer
Product Model BK-4000VA
Winding Material Enameled copper wire
Capacity 4000VA
Input Voltage 480V-440V(Can be customized)
Output Voltage 20/30/80V(Can be customized)
Frequency 50/60Hz
Connection Type Finger safe Terminals
Insulation Level F
Enclosures Protection Level IP00 or higher
Withstand voltage Test 3000V/min
Insulation Resistance >100MΩ
Ground Resistance 25A<100milliohm
Induction Withstand Voltage Test 125Hz/830V/60s
Cooling Method Natural or air cooling
Temperature Rise ≤80K
Transformation Ratio <3%
Air Carrying Current <3%
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!


4000VA Isolation Single Phase Control Transformer 480V/440V 20/30/80V 0

4000VA Isolation Single Phase Control Transformer 480V/440V 20/30/80V 14000VA Isolation Single Phase Control Transformer 480V/440V 20/30/80V 2




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