Xiamen Winley Electric Co.,Ltd
                                                                                                           
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China EI 50/60Hz Three Phase Auto Transformer 440V/415V/400V to 380V, 100VA-5000KVA Capacity, CE Certified for sale

EI 50/60Hz Three Phase Auto Transformer 440V/415V/400V to 380V, 100VA-5000KVA Capacity, CE Certified

Price Negotiable
Price: $25~$60000/Unit
MOQ: 1unit
Delivery Time: 10-15days
Brand: WINLEY
Product Description
Product Overview

EI 50/60Hz Three Phase Auto Transformer with voltage conversion capabilities from 440V/415V/400V to various output voltages including 380V/220V/120V/110V. This industrial-grade transformer features high-quality silicon steel core construction and customizable voltage specifications.

Key Features
  • High-quality silicon steel sheet iron core for optimal performance
  • Compact dimensions with high efficiency and low temperature rise
  • Customizable input and output voltage design according to requirements
  • Wide operating temperature range: -40℃ to 100℃ storage conditions
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 Range 100VA to 5000KVA
Input Voltage 415V or customized
Output Voltage 380V or customized
Frequency 50/60Hz
Connection Type DYN11/YYN0
Insulation Level F/H
Protection Level IP00 or higher
Temperature Rise ≤115K
Efficiency 80% to 99%
Certifications CE, ISO
Production Process
EI transformer manufacturing process showing core assembly
Three phase transformer technical diagram and specifications
Completed EI three phase transformer unit ready for installation
Frequently Asked Questions
Can I place a sample order?
Yes, we welcome sample orders for quality testing and verification.
What is the production lead time?
Sample orders: 3-7 days via DHL, UPS, or FedEx. Mass production: 7-25 days.
How long is the warranty period?
24 months from B/L date. We provide free technical support and replacement of damaged components with photo documentation.
Are OEM/ODM services available?
Yes, we offer comprehensive customization including colors, functions, packaging, logo printing (MOQ ≥10pcs), and design implementation.
How do you ensure product quality?
All products hold CE certification. Our professional engineering team implements strict quality control with technical guidance at each production stage, regular inspections, and comprehensive performance testing.
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Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Xiamen Winley Electric Co.,Ltd
Location No. 99 Yilan Road,Siming,Xiamen,Fujian,China
Contact Person Steven

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