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SGG
YAWEI
YAWEI SGG Series Industrial Isolation Transformer is a compact, high-efficiency power solution engineered for consistent, safe power performance across demanding commercial and industrial environments. Built with premium-grade materials and compliant with global international standards, this series is designed to solve core power challenges: ground loop interference, unstable voltage, EMI/RFI noise, and equipment damage from harsh operating conditions.
With a wide power rating range from 0.5kVA to 2000kVA and fully customizable voltage configurations, our isolation transformers are trusted by system integrators, facility managers, manufacturing operators, and project engineers worldwide to protect critical equipment, reduce unplanned downtime, and ensure compliance with regional electrical safety regulations.
This series features a high-quality cold-rolled silicon steel core and 100% pure copper windings, minimizing core loss and operating temperature rise while delivering exceptional power efficiency. The optimized design effectively eliminates harmful ground loops and suppresses electromagnetic interference, protecting sensitive precision electronics, extending equipment service life, and cutting long-term maintenance and replacement costs for continuous-operation facilities.
Engineered with industry-leading voltage regulation performance, the SGG series maintains a stable, consistent output voltage even during wide input voltage fluctuations and heavy load changes. It supports a short-circuit withstand capacity of ≥150% rated current for 30 seconds, guarding critical equipment against voltage surges, sags, and short-circuit impacts. This robust performance reduces equipment failure rates and ensures uninterrupted operation for high-stakes production and infrastructure systems.
We offer complete flexibility to match your unique project requirements, with customizable input voltage (208V/400V/480V/690V), output voltage (220V/380V/415V), and dual 50Hz/60Hz frequency compatibility. Every unit can be tailored to fit regional grid standards across the globe, simplifying system design for cross-border projects, reducing procurement complexity, and ensuring full compliance with local electrical safety codes for commercial and industrial builds.
The standard SGG series comes with an IP20 dustproof metal enclosure, with IP23 splash-proof and higher protection ratings available for customization to suit harsh industrial conditions. The heavy-duty enclosure resists dust, moisture, vibration, and extreme temperature fluctuations, eliminating the need for costly secondary enclosure modifications and ensuring reliable operation in manufacturing workshops, outdoor facilities, and other demanding industrial settings.
Parameter | Standard Specification | Customization Availability |
Model Series | SGG | - |
Rated Power Range | 0.5kVA – 2000kVA | Custom power ratings available |
Phase Configuration | Three Phase / Single Phase | Custom phase design supported |
Input Voltage | 208V / 400V / 480V / 690V | Fully customizable for global grid standards |
Output Voltage | 220V / 380V / 415V | Tailored to specific load requirements |
Rated Frequency | 50Hz / 60Hz | Dual frequency compatibility |
Insulation Class | Class F (155℃) / Class H (180℃) | Custom insulation class available |
Short-Circuit Withstand Capacity | ≥150% rated current for 30s | Custom rating for specialized applications |
Enclosure Protection Level | IP20 (Standard) | IP23 / IP54 / IP65 for harsh environments |
Core Material | Cold-rolled non-oriented silicon steel | - |
Winding Material | 100% Pure Copper | - |
Compliance Standards | IEC 61558, UL 5085, CE | RoHS, REACH, IEC 60601 (Medical Grade) |
Cooling Method | Natural Air Cooling (AN) | Forced Air Cooling (AF) for high-power models |
For manufacturing plant operators and automation system integrators, the SGG series solves critical pain points of voltage fluctuations, frequency converter-generated EMI, and ground loop-induced sensor and controller errors. By delivering clean, isolated power, it reduces unplanned production line shutdowns, improves machining and control accuracy, and lowers long-term maintenance costs for continuous-run manufacturing facilities.
Designed to meet strict medical safety requirements, this series offers low leakage current and reinforced insulation to eliminate electric shock risks for patients and medical staff, while suppressing EMI that can compromise the accuracy of diagnostic and life-support equipment. With optional IEC 60601 medical grade certification, it is ideal for MRI machines, patient monitors, operating room power systems, and laboratory diagnostic equipment.
For data center operators and IT infrastructure teams, the SGG series delivers stable, clean isolated power for servers, network switches, and storage systems. It eliminates ground loop interference that causes data corruption and system crashes, while protecting critical hardware from voltage surges. This ensures 99.99% uptime for mission-critical IT infrastructure, extends hardware service life, and reduces the risk of costly data outages.
With exceptional short-circuit withstand capacity and rugged enclosure design, this series addresses the core challenges of voltage spikes from heavy load switching, CNC positioning errors caused by ground loops, and equipment damage in dust-heavy, high-vibration workshop environments. It improves machining precision, reduces equipment breakdowns, and lowers repair and replacement costs for heavy industrial and metalworking operations.
All SGG Series Industrial Isolation Transformers are fully compliant with international safety and performance standards, including IEC 61558, UL 5085, and CE, with optional certifications for medical grade (IEC 60601), RoHS, and REACH available upon request.
Our production process strictly adheres to the ISO 9001 quality management system. Every unit undergoes rigorous full-load testing, insulation resistance testing, and voltage withstand testing before shipment to ensure consistent performance and long-term reliability in the field. We provide a standard 2-year warranty for all SGG series transformers, with lifetime technical support from our in-house team of professional electrical engineers.
An industrial isolation transformer provides complete galvanic isolation between input and output power circuits, eliminating harmful ground loops, suppressing EMI/RFI noise, converting voltage levels, and protecting sensitive equipment from voltage surges and electrical faults in industrial, commercial, and specialized precision applications.
The YAWEI SGG Series Industrial Isolation Transformer offers a wide rated power range from 0.5kVA up to 2000kVA, with fully customizable power ratings to meet the unique requirements of diverse industrial and commercial load applications.
Yes, all standard SGG series units are fully compliant with IEC 61558 and UL 5085 international safety and performance standards, with additional CE, RoHS, and medical grade IEC 60601 certifications available for specialized project requirements.
Absolutely. The SGG series supports fully customizable input and output voltage configurations to match global regional grid standards and your specific load requirements, with dual 50Hz/60Hz frequency compatibility for worldwide use.
The standard SGG series comes with an IP20 dustproof enclosure, with IP23 splash-proof, IP54, and IP65 protection ratings fully customizable for harsh industrial, outdoor, and dust-intensive operating environments.
Our team of electrical engineering experts is ready to design a custom SGG Series Industrial Isolation Transformer that fits your exact project requirements. Request a free, no-obligation quote today, or download the full product datasheet for detailed technical parameters and CAD drawing files. For bulk order inquiries and global project support, contact our sales team directly for competitive pricing and lead time information.
