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3 Phase Isolation Power Transformer | SG/SBK Series Dry Type Industrial Isolation Transformer
Product Overview
Our SG/SBK Series 3 Phase Isolation Power Transformer, manufactured by Shanghai Lepus Electrical Equipment Co., Ltd., is a professional industrial-grade dry-type power solution designed to deliver complete galvanic isolation, noise reduction, and surge protection for global low-voltage distribution systems. Suitable for 50/60Hz AC circuits with voltage up to 1000V, it offers a wide rated capacity range from 500VA to 2000KVA, with a standard 380V input to 220V output and fully customizable voltage ratios to meet regional power standards. Built with premium raw materials and precision engineering, it delivers full-capacity continuous operation, low energy loss, and strong adaptability to all load types. It is the trusted choice for electrical engineers worldwide, widely applied in factory power distribution, CNC machine tools, photovoltaic systems, EV charging stations, motor control, voltage test benches, medical equipment, and high-precision industrial devices.
Key Features & Competitive Advantages
Engineered for maximum safety and reliable industrial operation, this 3 phase isolation transformer offers industry-leading performance:
Complete Electrical Isolation: Full galvanic isolation between primary and secondary windings eliminates ground loop interference, common-mode noise, and voltage surges, protecting sensitive equipment and operator safety.
High Efficiency & Energy Saving: High-permeability silicon steel core ensures noise-free operation (<55dB), low temperature rise (<80K), and ≥90% working efficiency for long-term energy savings.
Premium Industrial Build: High-purity copper windings deliver strong conductivity and low loss, with F-class insulation materials that withstand 3500V dielectric tests for enhanced durability and safety.
Safe & User-Centric Design: IP23 protection (customizable), reinforced high-insulation terminals, heat emission holes, digital display for real-time voltage monitoring, and safety trip lock guarantee safe on-site operation.
Stable & Reliable Performance: ±2% output accuracy, no additional waveform distortion, 4% short-circuit resistance, and full-capacity continuous operation for all industrial load types.
Why Choose SHLEPUSI
As a professional industrial isolation transformer manufacturer with global reach, 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 rated capacity, voltage parameters, enclosure design (cabinet-free SBK or enclosed SG model), brand logo printing, and custom packaging to fit your unique requirements. Every 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 free component replacement for quality issues during the warranty period, with a low minimum order quantity of 1 unit for all orders.
Technical Specifications
Core Parameter
Standard Specification
Product Name
3 Phase Isolation Power Transformer
Standard Model
SG-30KVA (SBK cabinet-free model customizable)
Brand
SHLEPUSI (OEM/ODM Supported)
Place of Origin
Shanghai, China
Rated Capacity
30KVA (Customizable 500VA-2000KVA)
Rated Input Voltage
3 Phase 380VAC (Customizable)
Rated Output Voltage
3 Phase 220VAC (Customizable)
Working Frequency
50/60Hz
Output Precision
±2%
Insulation Class
F
Cooling Method
Dry Type Air Cooling
Protection Class
IP23 (Customizable)
Operating Temperature
-10℃ to +45℃
Dielectric Strength
3500V for 1 Minute
Noise Level
＜55dB
Working Efficiency
≥90%
Frequently Asked Questions (FAQ)
Q1: What is your standard lead time for this 3 phase isolation 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: Large units use reinforced fumigated wooden cases, while small products use high-strength cartons. 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 technical documents 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 industrial transformers?
A: We produce up to 10,000 low-power units monthly, and 2,000 high-power industrial units, supporting bulk orders of all sizes.
Q9: Can you customize capacity, voltage and enclosure type?
A: Absolutely. We fully customize all core parameters and design 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.
Shanghai Lepus Electrical Equipment Co., Ltd. is located in Shanghai, China, and operates as an integrated manufacturer combining R&D, production, sales, and technical services. We specialize in industrial power supply equipment and provide reliable, efficient, and customized electrical soluti...
Shanghai Lepus Electrical Equipment Co., Ltd. is located in Shanghai, China, and operates as an integrated manufacturer combining R&D, production, sales, and technical services. We specialize in industrial power supply equipment and provide reliable, efficient, and customized electrical soluti...
