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37.5KVA Three Phase Isolation Transformer NEMA 3R 208Y/120V Copper Wound

Basic Information
Place of Origin: CHINA
Brand Name: WINLEY
Certification: ISO,CE,UL
Model Number: SG-37.5KVA
Minimum Order Quantity: 1
Price: $100-$15000
Packaging Details: Plywood case
Delivery Time: 10days
Payment Terms: T/T
Supply Ability: 10000set/month
Detail Information
Capacity: 37.5KVA Material: Copper Wound
Voltage: 208Y/120V Type: Ventilated
Vector Group: Dyn1 Protection: NEMA 3R
Coil Structure: Square Type Cooling: AN
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37.5KVA Three Phase Isolation Transformer


120V Three Phase Isolation Transformer


NEMA 3R Copper Wound Isolation Transformer

Product Description

37.5KVA Three Phase Isolation Transformer NEMA 3R 208Y/120V Copper Wound



1) Precise meter accurately displays the output voltage.
2) Convenient for opening and repairing the transformer.
3) Omni-directional wheel make easy to move the transformer.
4) Power indicator light: Check working status any time.
5) Cooling fan:Cooling fan helps heat dissipating to extend the service life.
6) Heat dissipating grid: Increase efficiency of cooling.

Main data
Product Name Three phase dry type transformer
Product Model SG/QZB/SBK/Power transformer/ZSG/SBDG/EPS UPS
Winding Material Enameled copper wire or enameled aluminum wire
Capacity 100VA~5000KVA
Input Voltage 415V or customized
Output Voltage 380V or customized
Frequency 50/60Hz
Connection Type DYN11/YYN0
Insulation Level F/H
Enclosures Protection Level IP00 or higher
Pressure-tight Test 2500V/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!

Production process
Blue 75KVA 600V AN Three Phase Transformer Copper 0

Blue 75KVA 600V AN Three Phase Transformer Copper 1
37.5KVA Three Phase Isolation Transformer NEMA 3R 208Y/120V Copper Wound 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