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China 50KVA Three Phase Auto Transformer 440V/415V/380V/127V with 98% Efficiency and IP54 Protection for sale

50KVA Three Phase Auto Transformer 440V/415V/380V/127V with 98% Efficiency and IP54 Protection

Price Negotiable
Price: $20-$8000
MOQ: 1unit
Delivery Time: 10-15days
Brand: WINLEY
Product Description
Product Overview
The 50KVA Full Load Three Phase Auto Transformer is engineered for industrial power distribution applications requiring voltage conversion between 440V, 415V, 380V, and 127V. This dry-type transformer features vacuum pressure impregnation for enhanced durability and operates with ≥98% efficiency.
Technical Specifications
ParameterSpecification
TypeDry Type Autotransformer
Rated Power50KVA (Up to 5000KVA available)
Input VoltageRated Voltage ≤ 1000V
Output VoltageRated Voltage ≤ 1000V
Frequency50/60Hz ±5%
Phase NumberSingle/Three Phase
Vector GroupYyn0/Dyn11
Impedance Voltage4%
Efficiency≥98%
Insulation ClassF/H
Insulation Resistance≥10MΩ
Withstand Voltage2500V, 1 Minute, No Flashover
Coil Temperature Rise≤120K
Cooling MethodNatural Convection (AN) / Forced Air (AF)
Protection DegreeIndoor IP20 (NEMA 1) / Outdoor IP54 (NEMA 3)
Standards ComplianceIEC and EN Standards
Operating Environment
  • Ambient Temperature: -10℃ to +45℃
  • Relative Humidity: ≤95% (non-condensing)
  • Altitude: ≤1000m
Product Images
50KVA Auto Transformer technical diagram showing electrical connections and components Industrial 50KVA three phase auto transformer unit with protective enclosure
Frequently Asked Questions
Can I order samples?
Yes, we welcome sample orders for quality testing and verification. Sample delivery typically takes 3-7 days via DHL, UPS, or FedEx.
What is the production lead time?
Mass production requires 7-25 days depending on order quantity and customization requirements.
What warranty do you provide?
24-month warranty from bill of lading date. We provide free replacement for damaged accessories with photo documentation and offer technical support as needed.
Are OEM/ODM services available?
Yes, we offer comprehensive customization including special functions, colors, packaging, and logo printing (MOQ ≥10 units). Our R&D team can implement your specific design requirements.
How do you ensure product quality?
All products hold CE certification and undergo rigorous quality control. Our manufacturing process includes technical supervision at each stage, performance testing during production, and comprehensive final quality inspection.
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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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