Description
505W Tongwei N-Type Bifacial | TWMND-54HD Series
MAIN FEATURES
High performance and N-Type technology: The Tongwei TWMNH-54HD-505W module uses N-Type monocrystalline half-cut cells with a 108-cell layout (2×54), providing higher energy efficiency and improved performance under low-irradiance conditions. Its nominal power reaches 505 W with an efficiency of 22.7%.
Bifacial design and double glass: With its bifacial structure and 2.0 mm tempered glass on both sides, the panel enables a rear-side gain of up to 25%, significantly increasing total energy output. Ideal for installations with high reflectivity (light-colored ground, white rooftops, elevated structures, etc.).
Maximum durability and reliability: Built with an anodized aluminum frame and IP68 junction box. It withstands loads up to 5400 Pa (snow) and 2400 Pa (wind). Manufactured with high-strength, AR-coated 2.0 mm glass for enhanced outdoor durability.
Superior thermal performance: Temperature coefficient of –0.28 %/°C, resulting in lower energy losses and improved behavior under high temperatures.
Industry-leading warranty: 15-year product warranty and 30-year linear performance warranty, with degradation below 1% during the first year and a maximum of 0.4% per year for the following 29 years.
TECHNICAL SPECIFICATIONS
Electrical Data (STC):
- Nominal Power (Pmax): 505 W
- Efficiency: 22.7%
- Voltage at MPP (Vmp): 33.94 V
- Current at MPP (Imp): 14.88 A
- Open-circuit voltage (Voc): 40.24 V
- Short-circuit current (Isc): 15.92 A
- Power tolerance: 0 ~ +3 %
Mechanical Data:
- Cell type: N-Type Monocrystalline (TNC)
- Cell configuration: 108 cells (6×18)
- Dimensions: 1961 × 1134 × 30 mm
- Weight: 27.4 kg
- Glass: 2.0 mm (front and back, AR-coated)
- Frame: Silver anodized aluminum
- Connectors: 4.0 mm², cable length 1200 mm
- Protection: IP68 (3 diodes)
Operating Conditions:
- Operating temperature: –40 °C to +85 °C
- Maximum system voltage: 1500 V DC
- Maximum series fuse: 30 A
- Pmax temperature coefficient: –0.28%/°C
- NMOT: 45 ± 2 °C
ADDITIONAL BENEFITS
- Product warranty: 15 years
- Linear performance warranty: 30 years
- Certifications: IEC 61215 / IEC 61730 / ISO 9001 / ISO 14001 / ISO 45001 / IEC 62716 (Ammonia) / IEC 61701 (Salt) / IEC 60068-2-68 (Sand)
- Production certified in Bloomberg Tier 1 factories
