Description
Harness the power of HD Hyundai’s premium TOPCon technology with the HiS-T640NJ, a high-output bifacial module engineered for commercial and utility-scale applications. This 640W panel features 156 half-cut N-type monocrystalline TOPCon cells with 16-busbar design, delivering an exceptional 22.90% module efficiency and 80% bifaciality factor for significant rear-side energy gains. The glass-glass construction with clear anodized aluminum frame and semi-tempered solar glass on both front and rear surfaces ensures outstanding durability and long-term reliability. With a verified 605.6W PTC rating demonstrating real-world performance, this panel is purpose-built for large-scale ground-mount and commercial rooftop installations. Rated for 1500V DC systems and backed by a 12-year product warranty and 30-year linear performance guarantee.
Key Benefits
N-Type TOPCon Cell Technology:Advanced Tunnel Oxide Passivated Contact (TOPCon) cells deliver industry-leading 22.90% module efficiency with lower degradation rates, superior low-light performance, and excellent temperature coefficients compared to conventional PERC technology.
High Bifaciality (80%):Dual-glass bifacial design with 80% bifaciality factor captures reflected and diffused light from rear surfaces, boosting total energy generation by up to 25% in optimal ground-mount installations with high-albedo surfaces.
Glass-Glass Durability:2.0mm semi-tempered solar glass on both front and rear surfaces provides superior mechanical strength, enhanced PID resistance, and long-term protection against environmental degradation for a 30+ year service life.
PTC Rated Performance:605.6W PTC rating demonstrates real-world efficiency under actual operating conditions, providing reliable performance expectations for system designers and EPC contractors.
Ultra-High Power Density:640W output from 156 half-cut cells with 16-busbar design maximizes power per unit area, reducing installation footprint, racking, and balance of system costs for large-scale projects.
Genuine Stäubli MC4 Connectors:Factory-fitted genuine Stäubli MC4 connectors ensure reliable, low-resistance electrical connections and full compatibility with industry-standard wiring systems.
How It Works
This solar panel harnesses sunlight through its advanced N-type TOPCon monocrystalline silicon cells, utilizing tunnel oxide passivation to transform solar energy into electricity with exceptional efficiency. The bifacial glass-glass design captures both direct sunlight and reflected light from surrounding surfaces for maximum energy generation.
TOPCon Cell Architecture:Tunnel Oxide Passivated Contact technology creates an ultra-thin oxide layer on the cell rear, dramatically reducing recombination losses and enabling higher open-circuit voltages for superior energy conversion efficiency.
Half-Cut Cell Design:156 half-cut cells arranged in a 6×26 configuration reduce internal resistance and power loss, improving shading tolerance and delivering higher energy yields in real-world conditions.
Bifacial Glass-Glass Construction:Semi-tempered solar glass on both front and rear surfaces enables rear-side energy capture from reflected and diffused light while providing exceptional mechanical protection and long-term durability.
Technical Specifications
| Manufacturer | HD Hyundai Energy Solutions |
| Model Number | HiS-T640NJ |
| Power Output (Pmax) | 640 W (0~+5W tolerance) |
| PTC Rating | 605.6 W |
| Module Efficiency | 22.90% |
| Cell Type | Mono N-Type TOPCon, Bifacial |
| Cell Configuration | 156 Half-Cut Cells (6×26, 16BB) |
| Bifaciality | 80% ± 5% |
| System Voltage | 1,500 V DC |
| Max Reverse Current | 30 A |
| Temperature Coefficient (Pmax) | -0.290%/K |
| NMOT | 41°C ± 2°C |
| Open Circuit Voltage (Voc) | 57.77 V |
| Short Circuit Current (Isc) | 14.06 A |
| Voltage at Pmax (Vmpp) | 47.74 V |
| Current at Pmax (Impp) | 13.41 A |
| Dimensions | 2,465 × 1,134 × 30 mm (97.0 × 44.6 × 1.2 in) |
| Weight | 34.7 kg (76.5 lbs) |
| Frame | 30 mm Clear Anodized Aluminum |
| Front Glass | 2.0 mm Semi-Tempered Solar Glass, Anti-Reflective |
| Rear Glass | 2.0 mm Semi-Tempered Solar Glass |
| PV Wire | (+) 500 mm (~19.7 in) / (-) 300 mm (~11.8 in) |
| Connector | Stäubli MC4 (Genuine), IP68 |
| Junction Box | 3-Part, 3 Bypass Diodes, IP68 |
| Fire Rating | UL Type 29 |
Certifications & Warranty
Cell Technology: N-Type TOPCon Monocrystalline, Bifacial, 156 Half-Cut Cells (16BB)
Design: Clear on White (Clear Frame, Glass-Glass Bifacial)
Certifications: UL 61730, IEC 61215, IEC 61730, ISO 9001, ISO 14001, ISO 45001
Fire Rating: UL Type 29
Max Test Load: 5,400 Pa (front) / 2,400 Pa (rear)
Product Warranty: 12 Years
Performance Warranty: 30 Years Linear Performance Guarantee (≤1.0% Year 1, ≤0.4%/yr thereafter, 87.4% guaranteed at Year 30)
