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SEG Solar SEG-480-BTB-BG 480W N-Type TOPCon Bifacial Solar Panel
Model SEG-480-BTB-BG | N-Type TOPCon | 120 Half-Cell | Bifacial | 1500V System Voltage
Product Overview
The SEG Solar SEG-480-BTB-BG 480W N-Type TOPCon bifacial solar panel is engineered for high performance in modern solar projects. This advanced module combines N-type TOPCon cell technology with a bifacial double-glass design to deliver excellent energy yields in a wide range of environments. With a maximum power output of 480 watts and panel efficiency up to 22.17%, it supports space‑constrained roofs and ground mounts where every square meter matters. The monocrystalline half‑cell layout enhances shade tolerance and reduces resistive losses for more stable production over time. This panel operates within an extended temperature range from -40°C to 85°C, which allows reliable use in hot, cold, coastal, and dusty locations. A robust anodized aluminium frame, 2.0 mm anti‑reflection coated glass, and IP68 junction box offer strong mechanical protection in challenging outdoor conditions. Backed by a 15‑year product warranty and 30‑year linear power warranty with an end‑of‑term output of 87.4%, this module is designed for long‑term residential, commercial, and utility deployments.
Key Benefits
High power density for limited spaces: With up to 480 W of front‑side power and module efficiency up to 22.17%, this panel helps maximise energy production on constrained rooftops and compact ground arrays.
Bifacial generation for higher yields: The bifacial double‑glass construction captures light from both front and rear sides, which can increase total energy output on reflective surfaces such as light gravel, concrete, or white membranes.
Stable performance in varying temperatures: A low Pmax temperature coefficient of -0.30% per °C and NOCT around 45±2°C support reliable generation in hot climates and on dark roofs where operating temperatures rise.
Durable double‑glass and robust frame: Semi‑tempered 2.0 mm glass with anti‑reflection coating on the front and low‑iron glass on the back, combined with an anodized aluminium alloy frame, provides strong mechanical resilience and long service life.
Long‑term warranty protection: A 15‑year product warranty and a 30‑year linear power warranty, with at least 87.4% of initial power guaranteed at year 30, support long‑horizon project returns and bankability.
Flexible use across project types: The 1500 V maximum system voltage, 30 A series fuse rating, and high mechanical load capacity make this module suitable for residential, commercial, and utility installations using string or central inverters.
How It Works
This SEG Solar SEG-480-BTB-BG module converts sunlight into usable DC electricity through advanced N‑type TOPCon monocrystalline solar cells arranged in a half‑cell layout. Incident sunlight hits the front glass, passes through the anti‑reflection coating, and reaches the solar cells, where photons are converted into electrical current. Because this is a bifacial double‑glass design, additional light reflecting from the ground or nearby surfaces also enters through the rear glass and contributes to current generation. The module’s electrical output is delivered through MC4 connectors to a compatible inverter, which then converts DC energy into AC power for on‑site use or export to the grid. A low temperature coefficient and carefully optimised cell interconnection help maintain consistent performance under real‑world conditions, including partial shade and high operating temperatures. Over the system lifetime, the linear power warranty and controlled degradation rate support predictable production forecasts and project bankability.
N-Type TOPCon half‑cell architecture: The module uses N‑type TOPCon 182 x 91 mm cells in a 120 half‑cell configuration. This structure reduces resistive losses, improves shade tolerance across strings, and supports higher conversion efficiency compared with many standard full‑cell designs.
Bifacial double‑glass energy capture: Front and rear 2.0 mm glass layers enable light collection from both sides of the panel. The front side handles direct irradiance, while the rear side harvests reflected and diffuse light, which can raise total kWh output per installed kilowatt in well designed arrays.
System integration and safety: The panel connects into 1500 V DC strings using MC4 connectors and 12 AWG PV wire, which supports efficient high‑voltage array design. An IP68 junction box with three bypass diodes protects against hot spots during partial shading, while the 30 A series fuse rating ensures safe operation within typical string configurations.
Technical Specifications
| Brand | SEG Solar Inc. |
| Model Number | SEG-480-BTB-BG (YUKON N Series) |
| Cell Technology | N-Type TOPCon monocrystalline half‑cell |
| Cell Size | 182 × 182 mm silicon wafers, cut to 182 × 91 mm cells |
| Number of Cells | 120 half‑cells |
| Module Type | Bifacial double‑glass module |
| Power Range | 465 – 480 Wp (front side) |
| Maximum Power (Pmax, STC) | 480 Wp front side, 361 Wp at NOCT |
| Panel Efficiency | 21.48 – 22.17% (up to 22.17% at 480 W) |
| Power Tolerance | 0 ~ +3% |
| Voltage at Pmax (Vmpp, STC) | 36.0 V (front), 33.83 V at NOCT |
| Current at Pmax (Impp, STC) | 13.34 A (front), 10.67 A at NOCT |
| Open Circuit Voltage (Voc) | 43.2 V (front), 41.04 V at NOCT |
| Short Circuit Current (Isc) | 14.0 A (front), 11.2 A at NOCT |
| Maximum System Voltage | 1500 V DC (IEC/UL) |
| Series Fuse Rating | 30 A |
| Operating Temperature Range | -40°C to +85°C |
| Nominal Operating Cell Temperature (NOCT) | 45 ± 2°C |
| Temperature Coefficient of Pmax | -0.30% / °C |
| Temperature Coefficient of Voc | -0.25% / °C |
| Temperature Coefficient of Isc | +0.046% / °C |
| Module Dimensions (H × W × D) | 1909 × 1134 × 30 mm |
| Weight | 27.3 kg |
| Front / Back Glass | 2.0 mm AR‑coated semi‑tempered glass front / 2.0 mm low‑iron glass back |
| Glass Type and Thickness | Anti‑reflection coating glass, 2 mm thickness per side |
| Frame Type | Anodized aluminium alloy frame |
| Junction Box | IP68 rated with 3 bypass diodes |
| Connector Type | MC4 compatible connectors |
| Cable Type / Length | 12 AWG PV wire (UL) / 1200 mm |
| Mechanical Load Capacity (Front) | 5400 Pa / 113 psf (refer to installation manual) |
| Mechanical Load Capacity (Rear) | 2400 Pa / 50 psf (refer to installation manual) |
Certifications & Compliance
Certifications:
IEC 61215:2016, IEC 61730:2016, UL 1703, UL 61730, ETL / CEC listing, IEC 62804 PID resistance, IEC 61701 salt mist, IEC 62716 ammonia resistance, IEC 60068 dust and sand, IEC 61215 hailstone testing, Fire Type 29 (UL 61730).
Inverter Compatibility:
Compatible with most modern string and central inverters that support 1500 V DC arrays and high‑efficiency N‑type modules. Always check string sizing, voltage limits, and current limits in the chosen inverter datasheet before final design.
Environmental:
Designed for harsh outdoor conditions with double‑glass construction, high mechanical load ratings, and resistance to potential induced degradation, salt mist, ammonia, dust, sand, and hail when installed per SEG Solar guidelines.
Warranty:
15‑year limited product warranty on materials and workmanship, plus 30‑year linear power output warranty with power degradation limited to about 0.42% per year and at least 87.4% of the initial nameplate output guaranteed at year 30.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-16388 |
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| Manufacturer | PES Supply |
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