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BYD MSBK-33 645 645W Bifacial Monocrystalline Solar Panel
Model MSBK-33 645 | Monocrystalline | 132 Cells | Bifacial | 1500V System Voltage
Product Overview
The BYD MSBK-33 645 is a high-output bifacial monocrystalline solar panel built for dependable energy generation. It combines 132-cell construction, strong module efficiency, and a durable dual-glass design for modern photovoltaic systems. With a 645 Wp rating, it is designed to deliver stable performance across demanding residential, commercial, and utility-scale applications. The panel also supports a 1500V system voltage and a 35A series fuse rating. Its anodized aluminum frame, anti-reflection coated glass, and wide operating temperature range improve long-term reliability. The power warranty extends for 30 years, making it a strong choice for long service life.
Key Benefits
High Power Output: Delivers 645 Wp rated maximum power for strong energy production.
Bifacial Design: Captures light from both sides to support higher overall generation.
Solid Efficiency: Offers 20.76% module efficiency for effective conversion in real-world conditions.
Durable Build: Uses dual glass, anodized aluminum, and 2 mm anti-reflection coated glass.
Long-Term Value: Backed by a 12-year product warranty and 30-year power warranty.
Wide Application Range: Suitable for harsh climates, low-light conditions, and large-scale installations.
How It Works
This solar panel converts sunlight into direct current through monocrystalline silicon cells. Its bifacial structure helps generate electricity from reflected light behind the module as well. The half-cell layout supports efficient current flow and better performance under partial shading. Anti-reflection glass improves light capture, while the temperature coefficients help maintain stable output in hot environments. Together, these features support consistent daily generation and long-term system reliability.
Monocrystalline Cell Conversion: Sunlight is absorbed by high-quality monocrystalline cells. The cells produce DC electricity through the photovoltaic effect.
Bifacial Rear-Side Gain: The bifacial structure captures reflected light from the rear side. This can improve total energy yield in suitable installations.
Thermal Performance Control: Low temperature coefficients help limit power loss in heat. This supports steadier output across changing weather conditions.
Technical Specifications
| Brand | BYD |
| Model Number | MSBK-33 645 |
| Technology | Monocrystalline, Bifacial |
| Module Type | Mono Bifacial Dual Glass Module |
| Cell Count | 132 |
| Maximum Power (Pmax) | 645 Wp |
| Voltage at Maximum Power (Vmpp) | 37.77 V |
| Current at Maximum Power (Impp) | 17.1 A |
| Open Circuit Voltage (Voc) | 45.32 V |
| Short Circuit Current (Isc) | 18.13 A |
| Module Efficiency | 20.76% |
| NMOT Pmax | 482.9 Wp |
| NMOT Vmpp | 34.9 V |
| NMOT Impp | 13.82 A |
| NMOT Voc | 42.5 V |
| NMOT Isc | 14.62 A |
| Panel Dimensions | 2384 x 1303 x 35 mm |
| Weight | 38.7 kg |
| Glass Type | Anti-reflection coating glass |
| Glass Thickness | 2 mm |
| Frame Type | Anodized aluminium |
| Junction Box Diodes | 3 |
| Junction Box Protection Class | IP |
| Operating Temperature | -40 °C to 85 °C |
| NMOT | 45 ± 2 °C |
| Temperature Coefficient of Pmax | -0.328 %/°C |
| Temperature Coefficient of Voc | -0.254 %/°C |
| Temperature Coefficient of Isc | 0.041 %/°C |
| Maximum System Voltage | 1500 V |
| Series Fuse Rating | 35 A |
| Power Tolerance | 0 to +0.5% |
| Bifacial Factor | 70 ± 5% |
| Manufacturer | BYD Company Limited |
| Country of Origin | China |
Certifications & Compliance
Certifications: IEC61215-1, IEC61215-1-1, IEC61215-2, IEC61730-1, IEC61730-2, UL 61730-1, UL 61730-2
Inverter Compatibility: Designed for strong compatibility with mainstream inverter and tracker systems
Environmental: Suitable for harsh environments, low-light conditions, and wide temperature ranges
Warranty: 12-year product warranty and 30-year power warranty with 83.5% total degradation rate
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-1929 |
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| Manufacturer | PES Supply |
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