Electrical Equipment & Supplies Industrial Controls Transformers

China 20KVA Three Phase Isolation Transformer with Copper Windings, 415V Input, 380V Output, CE & ISO Certified for sale

20KVA Three Phase Isolation Transformer with Copper Windings, 415V Input, 380V Output, CE & ISO Certified

Name: 20KVA Three Phase Isolation Transformer with Copper Windings, 415V Input, 380V Output, CE & ISO Certified
Brand: Xiamen Winley Electric Co.,Ltd

Industrial-grade 20KVA ventilated three-phase isolation transformer featuring full copper windings for superior efficiency and durability. Offers 80-99% efficiency, IP00 or higher protection, and customizable voltage options. CE and ISO certified with comprehensive quality control and 24-month warranty for reliable power distribution applications.

Place of Origin CHINA

Temp. rise Low temp. rise

Packaging Details Plywood case

Loss Low losses

Material Copper

Model Number SG-20KVA

3 phase elcb type n female connector type t thermocouple extension wire

Product Description

Product Overview

20KVA ventilated type three-phase isolation transformer with copper windings, designed for industrial power distribution and electrical isolation applications.

Key Features

Cold-rolled silicon steel sheet core with excellent magnetic permeability
Full copper coil construction for enhanced efficiency and durability
Robust mounting bracket for secure installation

Technical Specifications

Parameter	Specification
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
Induction Withstand Voltage Test	125Hz / 830V / 60s
Cooling Method	Natural or air cooling
Temperature Rise	≤115K
Transformation Ratio
Air Carrying Current
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)
Certifications	CE, ISO

Technical parameters are for reference only. For exact technical information, please contact us.

Manufacturing Process

Copper winding construction and core assembly of industrial transformer

Completed 20KVA three phase isolation transformer unit ready for installation

Frequently Asked Questions

Can I place a sample order?

Yes, we welcome sample orders to test and verify product quality.

What is the lead time?

Sample orders: 3-7 days, shipped via DHL, UPS, FedEx. Mass production: 7-25 days.

How long is the warranty?

24 months from B/L date. We provide free replacement for damaged accessories with photo documentation and technical support as needed.

Is OEM/ODM available?

Yes, we offer full customization including colors, functions, packaging, logo printing (MOQ: ≥10pcs), and product design services.

How do you control product quality?

All products hold CE certification. We employ professional engineers, strict manufacturing protocols, technical supervision, and comprehensive quality testing throughout production.