JA Solar

The JA Solar JAM54D40 455/LB bifacial solar module is part of the Deep Blue 4.0 Pro series and has been developed for maximum energy yield, long service life and high efficiency. With the latest n-type technology, bifacial design and double-sided glass structure, the module is ideal for demanding private and commercial photovoltaic systems.Highlights at a glancePowerful: 455 W rated power with up to 22.6% module efficiencyBifacial energy yield: Rear side efficiency up to 80% (±5%)High reliability: Over 6,000 charge cycles at 70% EOL powerLow degradation: Only 0.4% power loss per year over 30 yearsRobust design: Double glass module with 1.6 mm glass thickness front and rearDurable: 25 years product warranty, 30 years performance guaranteeState-of-the-art n-type cell technologyThe module is based on n-type Bycium++ cell technology with 16 busbars (MBB half-cell). This reduces the power loss caused by light-induced degradation (LID) and ensures better performance in low light conditions as well as a higher overall energy yield.High performance under real conditionsThe JAM54D40 455/LB delivers strong performance not only under standard test conditions, but also at high ambient temperatures, low irradiation and when used bifacially. The bifacial rear-side absorption can achieve an additional yield of up to 30% with optimum installation.Robust construction for high loadsThe module is designed for a maximum static front load of 5400 Pa and a back load of 2400 Pa. The junction box is IP68 rated, ensuring a safe operation under a wide range of weather conditions. Suitable for applications from -40 °C to +85 °C.   Electrical parameters at STC Maximum rated power (Pmax) (W)455 Open-circuit voltage (Voc) (V)39.50 Maximum power voltage (Vmp) (V)33.00 Short-circuit current (Isc) (A)14.56 Maximum power current (Imp) (A)13.79 Module efficiency (%)22.8 Operating conditions Maximum system voltage1500V DC Operating temperature–40°C ... +85°C Maximum rated power of series fuse30A General data Dimensions (W / H / D)1762/1134/30mm Weight22 kg   Who is the JA Solar JAM54D40 455/LB suitable for?Installers and system planners focusing on performance and durabilityOperators of rooftop systems wanting to benefit from additional bifacial yieldCustomers looking for a visually appealing full black solution with high energy yieldProjects with demands for low degradation and high environmental resilienceFrequently asked questions (FAQ) about the JA Solar JAM54D40 455/LBWhat does "bifacial" mean for this module?The module uses bifacial cells that are light-sensitive on both the front and rear sides. This means that reflected light from the rear side can also be converted into electricity, which can increase energy yield by up to 30 percent depending on the installation environment.What is the difference between n-type and p-type cells?n-type cells, as in the JAM54D40 455/LB, have higher efficiency, lower light-induced degradation (LID) and better low-light performance compared to conventional p-type cells.How large is the module and how much does it weigh?The module measures 1134 × 1762 × 30 mm and weighs 22 kg. It features a double glass design with 1.6 mm glass thickness on the front and rear sides.How long is the warranty?JA Solar offers 25 years product warranty and 30 years linear performance guarantee with a maximum annual degradation of only 0.4 percent.Is the module suitable for use in extreme climate zones?Yes, the module is designed for operating temperatures from -40 °C to +85 °C and can withstand a front load of up to 5400 Pa and a back load of up to 2400 Pa. The junction box is rated to IP68.Which inverters is the module compatible with?The module is compatible with all standard inverters designed for a system voltage of up to 1500V DC. The junction boxes are equipped with MC4-EVO2 connectors.What is the best way to install the module?The module is suitable for both rooftop and ground-mounted systems. It can be installed in landscape or portrait format. The cable length is adapted to the orientation in each case.How robust is the module against environmental influences?Thanks to its glass-glass design and black aluminium frame, the module withstands extreme loads, designed for snow loads up to 5,400 Pa and wind loads up to 2,400 Pa. The rear foil and robust frame construction provide reliable protection against moisture and environmental influences.  

The JA Solar JAM54D41-LB 460W is an absolute premium solar module that combines maximum performance, extreme durability and an elegant "full black" aesthetic. Thanks to the advanced N-Type cell technology this module achieves an impressive nominal output of 460 watts on a standard surface area (less than 2 m²), making it the perfect choice for modern homes with limited roof space.The Double glass construction (glass-glass) makes the module extremely resistant to environmental influences such as hail, salt or ammonia and ensures significantly higher fire safety than conventional glass-foil modules. As a bifacial module, it also utilises the scattered light from the rear to generate electricity, which increases the yield, especially on cloudy days.Highlights at a glanceN-Type technology: Uses state-of-the-art cell chemistry for higher efficiency, better low-light behaviour and almost zero light-induced degradation (LID).Bifacial power generation: The active back of the module also converts reflected light and ambient light into energy, which can increase the total yield (depending on the mounting method) by 5-30%.Glass-glass construction: Two layers of tempered glass hermetically protect the cells, resulting in outstanding mechanical strength and durability.Elegant full black design: Black frame, black cells and a dark back ensure a homogeneous, unobtrusive look that blends in perfectly with dark roofs.High efficiency: With 460 watts of peak power in compact dimensions, it is one of the most powerful modules in its class (108 half cells).Long-term guarantee: Benefit from an industry-leading 25-year product guarantee and a 30-year linear performance guarantee.Areas of applicationPrivate roof systems: Ideal for homeowners who value maximum aesthetics (black look) and maximum security (glass-glass).Carports & patios: Thanks to its bifacial properties and robust glass backing, it is also suitable for semi-open canopies.Trade & industry: For projects where durability and fire protection class (often better for glass-glass) are crucial.Installation & safety instructionsClamping range: When installing, pay attention to the clamping ranges specified by the manufacturer on the 30 mm frame in order to guarantee the warranty and snow load capacity (5400 Pa).Glass handling: Although glass-glass modules are stable, they are sensitive at the corners. Never place the modules unprotected on the corners during installation (use edge protection!).Cable management: Bifacial modules often have a slightly shorter junction box or cable (approx. 1.2 m). Before planning the string, check whether the cable length is sufficient for your planned installation type (vertical/crosswise) or whether extension cables are required. Properties ModelJA Solar JAM54D41-460/LB (Full Black) Rated power (Pmax)**460 Wp** Cell type**Monocrystalline N-Type** (bifacial) Module efficiency**23 %** Open circuit voltage (Voc)**39.70 V** Short-circuit current (Isc)**14.64 A** Glass thickness**1.6 mm + 1.6 mm** (high-strength solar glass) Protection class junction box**IP68** (3 bypass diodes) Dimensions (L x W x H)1762 x 1134 x 30 mm Weight**22.0 kg**  FAQs about the JA Solar JAM54D41-LBWhat are the benefits of "Bifacial" for a Full Black module on a normal roof?Even when installed parallel to the roof (at a distance of approx. 10 cm from the tiles), scattered light and reflection still get under the module. Although the "extra gain" here is less than with a flat roof with a white substrate, the bifacial cell still helps to better utilise diffuse light. However, the main advantage of "full black" is the glass-glass stability and the optics.Why is N-Type better than P-Type?N-type cells have a different doping (phosphorus instead of boron). As a result, they do not suffer from the "LID effect" (Light Induced Degradation), i.e. they do not lose any power in the first few hours of operation. They also have a better temperature coefficient – so they deliver more power than conventional modules even on hot summer days.Will the module fit on my balcony power station?Yes, absolutely. With 460 watts, it is extremely powerful and achieves a lot even at unfavourable angles. The dimensions (approx. 1.76 x 1.13 m) fit almost all standard brackets. The weight of 22 kg is very moderate for glass-glass and easy to handle.