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20KVA Low Voltage 3 Phase Transformer
Product Overview
Our 20KVA Low Voltage 3 Phase Transformer (Model SG-20KVA) is a
premium SG/SBK series industrial power transformer, engineered for
reliable low-voltage power conversion in global 50/60Hz electrical
circuits up to 1000V. With standard 3-phase 380V input and
single-phase 220V output (fully customizable voltage and capacity),
it is the ideal power solution for hospitals, factory power
systems, CNC machine tools, photovoltaic systems, power
transmission equipment, precision instruments, generators, motors,
and EV charging stations. Available in enclosed cabinet (SG) and
open-frame (SBK) designs, it delivers full-capacity continuous
operation with stable performance, low loss, and strong
adaptability to various loads for industrial and commercial
applications worldwide.
Key Features & Advantages
- High-Efficiency Energy-Saving Design: High-permeability silicon
steel core ensures high magnetic flux, <55dB ultra-low noise
operation, ≥90% working efficiency, minimal energy loss, and
<80K temperature rise, fully compliant with global environmental
standards.
- Superior Conductive Construction: High-purity winding material
delivers exceptional electrical conductivity and low temperature
rise, paired with a safe, durable structure and convenient wiring
design for simplified installation and maintenance.
- Comprehensive Safety Protection: High-insulation materials
withstand 3500V voltage tests, with F-class insulation,
high-quality nylon frame, and secure high-insulation terminals;
integrated safety trip lock prevents overload and short-circuit
hazards.
- Smart Monitoring & User-Friendly Design: Digital display provides
clear real-time working status tracking, with input/output status
indicators, brake-equipped universal wheels for flexible mobility,
and porous heat emission holes for efficient thermal management.
- Customizable Adaptability: Supports customized protection classes
(IP23, IP44, IP54, IP64, IP56), with ±2% output precision, no
additional waveform distortion, and stable operation in -10℃ to
+45℃ working environments.
Why Choose Us
As a professional transformer manufacturer serving the global
market, we offer factory-direct pricing with no middleman markup
for clients worldwide. We provide full OEM/ODM services, including
custom parameters, appearance, branding, and packaging, plus free
professional product photography and video producing. Every unit
undergoes strict full-stage quality inspection from raw material
intake to final assembly, with 100% pre-shipment testing to ensure
zero defects. We support flexible global shipping via sea, air,
land, express, and railway, with all mainstream international trade
terms available. Backed by lifetime free technical guidance, video
installation support, and on-site engineer services, we boast a
monthly capacity of 10,000 units for small-power products and 2,000
units for large-power models, with a minimum order quantity of just
1 set to meet both sample and bulk demands.
Technical Specifications
| Parameter | Details |
|---|
| Product Name | 20KVA Low Voltage 3 Phase Transformer |
| Brand | SHLEIPUSI / Customized OEM/ODM Supported |
| Place of Origin | Shanghai, China |
| Model | SG-20KVA (Customizable) |
| Rated Capacity | 20KVA (Customizable) |
| Rated Input Voltage | Three Phase 380V (Customizable) |
| Rated Output Voltage | Single Phase 220V (Customizable) |
| Working Frequency | 50/60Hz |
| Output Precision | ±2% |
| Insulation Class | F |
| Waveform Distortion | No additional waveform distortion |
| Short-Circuit Resistance | 4% |
| Working Temperature | -10℃ ~ +45℃ |
| Insulation Resistance | ≥5MΩ |
| Noise | <55dB |
| Temperature Rise | <80K |
| Protection Class | IP23/IP44/IP54/IP64/IP56 (Customizable) |
| Cooling Method | Dry type air cooling |
| Working Efficiency | ≥90% |


Frequently Asked Questions (11 Items)
- How long is the lead time? Normally 3-7 working days for standard products; custom orders take
10-30 days depending on quantity and requirements.
- How do you control product quality? We conduct professional quality inspection at every stage from raw
material intake to manufacturing, and only ship products that meet
all quality standards.
- What are your payment terms? 30% deposit for standard products, 50% advance for custom products,
with the balance paid before shipment.
- Do you provide technical support for product installation? Yes, our professional technical team provides full installation
guidance and application support, including video and on-site
engineer services.
- What packaging do you use for your products? Large products are packed in heavy-duty wooden cases, and small
products use high-strength cartons, with custom packaging options
available.
- Can you put our custom logo on the product? Yes, we accept full OEM and ODM services, with custom logo
placement on products, manuals, and packaging for qualified orders.
- Where is your major market? Our products are sold globally, covering Central Asia, East Asia,
South Asia, Africa, South America, and North America.
- What is your production capacity? Up to 10,000 units monthly for small-power products, and 2,000
units monthly for larger-power transformers.
- What is your minimum order quantity (MOQ)? Our minimum order quantity is 1 set, supporting both sample testing
and bulk purchase.
- What is your warranty policy? We provide free replacement of components damaged by quality issues
during the warranty period, plus lifetime free telephone technical
guidance.
- Can we customize the protection class and voltage parameters? Yes, we fully support custom parameters including voltage,
capacity, protection class, and enclosure design to fit your
specific application needs.