Unbalance Type 400KVA Three Phase Voltage Regulators/Stabilizers | Industrial AVR for Global Unbalanced Load Solutions
Product Introduction
Our Unbalance Type 400KVA Three Phase Regulators/Stabilizers (Model: SBW-F-400KVA) are professional industrial-grade automatic voltage regulation (AVR) solutions, purpose-built to solve severe three-phase voltage unbalance issues for critical electrical systems across global markets. Featuring industry-leading three-phase independent voltage regulation, this stabilizer delivers consistent, precision output even when input phase voltages differ drastically, making it ideal for factory power systems, precision equipment manufacturers, electrical engineers, CNC machine tools, photovoltaic systems, EV charging stations, power transmission equipment, and generator suppliers. It eliminates costly downtime, equipment damage, and production errors caused by voltage fluctuations and phase imbalance, safeguarding your industrial assets 24/7.
Key Features & Competitive Advantages
This 400KVA unbalanced three phase voltage stabilizer delivers unmatched performance with its core three-phase independent regulation technology, paired with 6 industry-defining strengths: ±2% high precision output, ultra-fast response, extended service life, ultra-low energy losses, full capacity output, and wide voltage regulation range. Its high-torque servo motors drive dual high-conductivity carbon brushes per phase for faster, more accurate voltage stabilization with minimal wear, while the full pure copper column winding structure ensures non-derated power delivery and consistent regulation. It features an optimized heat dissipation design, heavy-duty industrial-grade switches, and high-insulation reinforced terminals for long-term reliable operation, with integrated brake wheels for flexible on-site mobility. The intelligent LCD screen provides clear real-time phase-by-phase data display, working status monitoring, and one-touch parameter setting. Full-spectrum protection functions include over voltage, under voltage, overload, short-circuit, over temperature, time delay, reverse phase sequence, phase loss, frequency protection, and neutral line missing alert, with zero additional waveform distortion.
Why Choose Our Voltage Stabilizers
As a trusted global manufacturer of industrial voltage regulators and stabilizers, we specialize in unbalanced load solutions tailored to worldwide grid conditions. We offer full OEM/ODM customization services, including tailored parameters, appearance, logo branding, and packaging to meet your unique project requirements. Every unit undergoes strict full-load and phase-balance pre-shipment testing to ensure zero defects, with a monthly production capacity of 2,000 high-power units to fulfill bulk orders seamlessly. Our minimum order quantity starts at just 1 set, making our solutions accessible for both small-scale and large industrial projects. We provide lifetime free telephone technical guidance, a dedicated after-sales engineering team for video call installation support, free component replacement for warranty-covered quality issues, and flexible global shipping with all mainstream international trade terms (EXW, FOB, CIF, DDP, etc.) available.
Technical Specifications
| Core Parameter |
Standard Specification |
| Product Name |
Unbalance Type 400KVA Three Phase Voltage Regulators/Stabilizers |
| Model |
SBW-F-400KVA (Fully Customizable) |
| Rated Capacity |
400KVA (Customizable) |
| Rated Frequency |
50/60Hz |
| Input Voltage |
3 Phase 380VAC±20% (Customizable) |
| Output Voltage |
3 Phase 380VAC (Customizable) |
| Regulation Mode |
Three-Phase Independent Automatic Regulation |
| Output Accuracy |
±2% |
| Max Output Current |
607A (Customizable) |
| Display |
Multifunctional Intelligent LCD Screen |
| Working Temperature |
-10°C to +45°C |


Frequently Asked Questions (FAQ)
- What is your standard lead time?
3-7 working days for standard units, 20-30 days for customized or bulk orders.
- How do you ensure product quality?
Our professional QC team monitors the full production process, with 100% pre-shipment testing for every unit.
- What are your payment terms?
30% deposit for standard products, minimum 50% advance for customized orders, balance settled before shipment.
- Do you provide installation technical support?
Yes, our professional engineering team offers full installation and application guidance worldwide.
- What packaging do you use for shipping?
Heavy-duty wooden cases for large units, reinforced carton packaging for small products.
- Do you accept OEM/ODM with our company logo?
Yes, we provide full OEM/ODM services, including logo printing for eligible bulk orders.
- Is this stabilizer suitable for severe three-phase voltage unbalance conditions?
Absolutely, its three-phase independent regulation design ensures stable output even with significant input phase voltage differences.
- What are your main global markets?
We serve customers across Asia, Africa, South America, North America, and Oceania.
- What is your production capacity for high-power stabilizers?
We can produce 2,000 high-power units monthly, plus 10,000 small-power units per month.
- What is your minimum order quantity (MOQ)?
Our MOQ is 1 set for both standard and customized voltage stabilizers.
- What is your standard warranty policy?
We offer a 12-month standard warranty, with extended warranty options available on request.
Contact US
TEL: +86 15926315252
MOBILE / WECHAT: +86 15926315252
EMAIL: daniel@shlepus.com
Whatsapp: +86 18979230829