50KVA 220V 380V 400V Variable Variac Transformer | TSGC2 Series Industrial Adjustable Voltage Regulator
Product Overview
Our TSGC2 Series 50KVA 220V 380V 400V Variable Variac Transformer, developed and manufactured by Shanghai Lepus Electrical Equipment Co., Ltd., is a heavy-duty, energy-saving AC voltage regulation solution designed for high-power industrial voltage adjustment. This contact-type variable variac transformer delivers full-capacity continuous operation, zero waveform distortion, and strong instantaneous overload tolerance, adapting seamlessly to resistive, inductive, and capacitive loads. It is the trusted choice for electrical engineers, factory operators and industrial clients worldwide, widely applied in motor testing, voltage test benches, CNC machine tools, photovoltaic systems, EV charging stations, laser cutting equipment, power transmission systems, and high-precision industrial devices.
Key Features & Competitive Advantages
Engineered for global heavy-duty industrial applications, this 3 phase variable variac transformer offers industry-leading performance:
- Universal Voltage Compatibility: Standard 220V/380V/400V three-phase input, with 0-480V/500V/560V adjustable output to fit global industrial power standards.
- High Precision & Stable Output: Zero additional waveform distortion with high-conductivity double carbon brushes, ensuring accurate voltage control for sensitive motor testing and precision equipment.
- Heavy-Duty Durable Build: 100% pure copper coils with microcomputer modulation control, high-insulation reinforced terminals, and industrial-grade raw materials guarantee long service life, low operating losses, and reliable 24/7 operation.
- Intuitive Operation: Smooth manual rotary knob for seamless voltage adjustment, paired with a high-definition digital display for real-time voltage monitoring, ideal for on-site use by electrical engineers.
- Full Load Adaptability: Strong overload resistance, compatible with all common industrial loads for factory power systems, generators, and industrial machinery.
Why Choose Shanghai Lepus
As an ISO9001 and CE certified professional variable variac transformer manufacturer, we serve clients across 60+ countries and regions in Central Asia, East Asia, South Asia, Africa, Europe, North and South America. We provide full OEM/ODM customization, including tailored voltage parameters, rated capacity, product appearance, brand logo printing, and custom packaging to fit your unique requirements. Every 50KVA unit undergoes strict multi-stage quality inspection and pre-shipment testing to ensure zero defects. We offer flexible global shipping options with full Incoterms support, lifetime free technical guidance, on-site engineer installation and debugging services, and comprehensive warranty coverage for quality issues, with a low minimum order quantity of 1 unit for all orders.
Technical Specifications
| Core Parameter |
Standard Specification |
| Product Name |
50KVA 220V 380V 400V Variable Variac Transformer |
| Standard Model |
TSGC2-50KVA (Fully Customizable) |
| Rated Capacity |
50KVA (Customizable on Request) |
| Rated Frequency |
50/60Hz |
| Input Voltage |
3 Phase 220VAC / 380VAC / 400VAC (Customizable) |
| Output Voltage |
3 Phase 0-480VAC / 500VAC / 560VAC Adjustable |
| Phase |
3 Phase |
| Operating Temperature |
-15℃ to +45℃ |
| Relative Humidity |
20% to 90% (Non-Condensing) |
| Enclosure Type |
Reinforced Industrial Metallic Cabinet |
| Dielectric Strength |
2500V for 1 Minute |
| Display System |
Digital Display (Customizable) |
| Load Compatibility |
Resistive, Inductive & Capacitive Loads |
| Certifications |
ISO9001, CE |


Frequently Asked Questions (FAQ)
Q1: What is your standard lead time for this 50KVA variac transformer?
A: Standard in-stock orders ship within 3-7 working days. Customized or bulk orders take 10-30 days based on order specifications.
Q2: How do you ensure product quality?
A: We implement full-process quality inspection from raw material incoming to final assembly, with strict pre-shipment testing for every unit.
Q3: What are your accepted payment terms?
A: 30% deposit for standard products, minimum 50% advance payment for customized orders, with full balance settled before shipment.
Q4: Do you provide technical support for installation?
A: Yes. Our professional technical team offers full installation guidance, on-site engineer dispatch, and lifetime free telephone technical support.
Q5: What packaging do you use for international shipping?
A: This 50KVA unit uses reinforced fumigated wooden cases for protection. Custom packaging is available upon request.
Q6: Do you accept OEM/ODM orders with our company logo?
A: Yes, we provide full OEM/ODM services, including custom logo printing on products and packaging for eligible orders.
Q7: What are your main global markets?
A: We serve clients worldwide, covering Central Asia, East Asia, South Asia, Africa, Europe, North America and South America.
Q8: What is your monthly production capacity for high-power variac transformers?
A: We produce up to 2,000 high-power industrial units monthly, supporting bulk orders of all sizes.
Q9: Can you customize core parameters like rated capacity and voltage range?
A: Absolutely. We fully customize all parameters to meet your specific industrial application needs.
Q10: What is your minimum order quantity (MOQ)?
A: Our MOQ is 1 unit, accommodating both sample testing and large-scale bulk procurement needs.
Contact Us
TEL / WeChat: +86 15926315252 | Email: daniel@shlepus.com | Whatsapp: +86 18979230829