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JA Solar 460W N-type Double Glass Monofacial LR Traceable 54 Cell All Black MC4
The JA Solar JAM54D41-460 LR is a 460 W N-type TOPCon all-black monofacial solar panel from JA Solar’s DeepBlue 4.0 series. It delivers 23 % module efficiency from 108 laser-traceable half-cut cells in a double-glass, full-black format measuring 1,762 × 1,134 × 30 mm and weighing 22 kg. N-type TOPCon cell technology gives this panel a significant advantage over standard P-type PERC panels: virtually zero light-induced degradation (LID), a superior temperature coefficient of −0.29 %/°C, and better energy yield in overcast and low-irradiance conditions — all of which matter in the UK climate. The double-glass construction eliminates the rear polymeric backsheet, improving long-term durability, fire resistance, and resistance to potential-induced degradation (PID). The all-black aesthetic — black frame, black backsheet glass and black cells — makes this the preferred choice for visible residential rooftop installations where appearance is important. Supplied with genuine MC4 connectors on 1,200 mm cables. MCS eligible. 25-year product warranty; 30-year linear power output warranty.
460 W
Rated output
23%
Module efficiency
N-type TOPCon
Cell technology
−0.29 %/°C
Temp. coefficient
30 yrs
Performance warranty
All Black
Frame + glass + cells
ℹ MCS eligible — qualifies for UK Smart Export Guarantee (SEG): This panel is eligible for MCS-certified solar installations in the UK. Installations using MCS-certified components and an MCS-registered installer qualify the homeowner for the Smart Export Guarantee (SEG), allowing payment for electricity exported to the grid. Confirm MCS reference with your installer prior to purchase.
N-type TOPCon vs Standard P-type PERC — Why It Matters
| This panel (N-type TOPCon) | Standard P-type PERC | |
|---|---|---|
| Efficiency (module) | 23 % | Typically 20 – 21 % |
| Light-induced degradation (LID) | Virtually zero | 0.5 – 2 % initial loss |
| Temperature coefficient (Pmax) | −0.29 %/°C | Typically −0.35 %/°C |
| Low-light performance | Superior (enhanced IR response) | Good |
| 30-year output retention | ≥87.4 % of rated power | Typically ≥80 % |
| Degradation rate (annual) | ≤0.40 % per year | 0.55 % per year (typical) |
Performance comparisons are indicative. STC conditions apply. Real-world yield depends on system design, orientation, shading and local climate.
Key Features
N-type TOPCon at 23 % Efficiency — More Power from the Same Roof Area
N-type TOPCon (Tunnel Oxide Passivated Contact) cells achieve higher efficiency than standard PERC cells by passivating the rear contact with a thin tunnel oxide layer, minimising electron recombination losses. At 23 % module efficiency, this panel generates more electricity per square metre than virtually all P-type PERC panels on the market. On a typical UK semi-detached roof with space for 10 panels, the efficiency gain over a 20 % panel translates to approximately 15 % more annual energy yield from the same footprint. N-type cells also exhibit virtually zero light-induced degradation (LID): P-type cells can lose 0.5 – 2 % of output in their first few hours of exposure; N-type cells do not suffer this effect.
23% efficiencyN-type TOPConVirtually zero LID
Double Glass Monofacial — 30+ Year Durability Without a Backsheet
Rather than a conventional polymer backsheet, the rear of this panel uses a second sheet of tempered glass (3.2 mm rear glass). The double-glass construction eliminates the risk of backsheet cracking, delamination, and moisture ingress that can occur over time with polymer backsheets. Glass also has far superior resistance to potential-induced degradation (PID), UV yellowing and fire. The monofacial design (opaque rear glass) is chosen deliberately here: it maintains the full all-black aesthetic and is the appropriate choice for pitched roof installations where the rear face is not exposed to light. Rated for snow loads up to 5,400 Pa and wind loads up to 2,400 Pa.
Double glass (no backsheet)5,400 Pa snow load2,400 Pa wind loadPID resistant
All-Black Aesthetic — Frame, Cells and Rear Glass
Every visible component of this panel is black: anodised aluminium black frame, black rear glass, black busbars and black cell matrix. There is no silver frame, no white backsheet and no visible silver interconnects. The result is a uniform, low-contrast appearance that blends with dark tile roofs (slate, anthracite concrete, dark clay) and suits architectural installations where the solar array should be visually unobtrusive. The all-black design also helps in snow shedding: the darker surface absorbs more heat, accelerating snow melt and reducing downtime from snow coverage in winter months.
Full all-blackBlack frame + cells + rear glassSnow shedding benefit
LR Laser Traceability — Full Supply Chain Transparency
The ‘LR’ designation indicates that every individual cell in this module is laser-marked with a unique traceable identifier. This allows the cell’s origin, manufacturing batch, and quality control records to be tracked throughout the supply chain from wafer to finished module. Laser traceability is increasingly specified by commercial installers, developers and ESG-conscious buyers as part of responsible sourcing requirements, and is relevant to procurement policies relating to modern slavery and ethical supply chains. JA Solar’s traceability programme is independently verified.
Laser cell traceabilitySupply chain verifiedESG procurement eligible
MBB 16-Busbar Half-Cell Architecture — Shade Tolerance and Reliability
The 108 cells in this panel are half-cut: each standard cell is divided into two, reducing resistive losses within the module. Half-cut cells lower the operating current of each cell by half, which means resistive (I²R) losses are reduced by 75 % compared to full-cell modules of the same size. The 16 multi-busbar (MBB) design further distributes current collection across more contact points, reducing the impact of micro-cracks and improving shade tolerance. Three bypass diodes in the IP68 junction box provide cell-level shade bypassing, limiting the impact of partial shading on overall string output.
108 half-cut cells16 busbars (MBB)3 bypass diodesIP68 junction box
Superior UK Climate Performance — Low-Light and Temperature Coefficient
The UK receives around 1,000 – 1,200 hours of sunshine annually, much of it at low irradiance. N-type TOPCon cells generate a higher proportion of their rated output at low light intensities due to enhanced infrared (IR) spectral response, making them particularly well suited to overcast British conditions. The temperature coefficient of −0.29 %/°C means that for every degree above 25°C, this panel loses only 0.29 % of output — compared to −0.35 % for a typical PERC module. In a 50°C cell temperature (common on a warm UK summer day), this panel retains approximately 3 % more of its rated power than a standard PERC panel.
−0.29%/°C temperature coefficientEnhanced low-light responseBetter UK climate yield
30-Year Linear Power Guarantee — ≥87.4 % After Three Decades
JA Solar’s performance warranty provides specific annual degradation guarantees rather than a simple end-point value: no more than 2 % degradation in the first year, then ≤0.40 % per year thereafter. After 30 years, the panel is guaranteed to produce at least 87.4 % of its original rated output. This is significantly better than the 80 % retention guaranteed by most standard P-type modules, and reflects the lower inherent degradation rate of N-type cells. A separate 25-year product warranty covers defects in materials and workmanship. JA Solar is a Bloomberg Tier 1 module manufacturer, providing confidence in long-term warranty support.
30-yr linear performance≥87.4% after 30 years25-yr product warrantyBloomberg Tier 1
Technical Specifications
| Electrical Parameters at STC (1,000 W/m², 25°C, AM 1.5) | |
| Rated maximum power (Pmax) | 460 W (+0/−5 W tolerance) |
| Module efficiency | 23.0 % |
| Maximum power voltage (Vmp) | 33.68 V |
| Maximum power current (Imp) | 13.66 A |
| Open circuit voltage (Voc) | 40.6 V |
| Short circuit current (Isc) | 14.43 A |
| Temperature Coefficients | |
| Power (Pmax) | −0.29 %/°C |
| Voltage (Voc) | −0.26 %/°C |
| Current (Isc) | +0.046 %/°C |
| Normal operating cell temperature (NOCT) | 44 ± 2 °C |
| Mechanical | |
| Dimensions (L × W × D) | 1,762 × 1,134 × 30 mm |
| Weight | 22 kg |
| Front glass | 3.2 mm tempered |
| Rear glass | 3.2 mm tempered (double glass, monofacial) |
| Frame | Anodised aluminium, all-black |
| Junction box | IP68, 3 bypass diodes |
| Connectors | MC4 (genuine) |
| Cable | 4 mm², 1,200 mm (both leads) |
| Cell Technology | |
| Cell type | N-type TOPCon monocrystalline (Bycium+) |
| Cell configuration | 108 half-cut cells (54 × 2) |
| Multi-busbar (MBB) | 16 busbars per cell |
| Traceability | Laser-traceable (LR designation) |
| Electrical Limits | |
| Maximum system voltage | 1,500 V DC |
| Series fuse rating | 30 A |
| Operating temperature | −40 – +85 °C |
| Mechanical Loads | |
| Max snow load | 5,400 Pa (front) |
| Max wind load | 2,400 Pa |
| Warranty | |
| Product warranty | 25 years |
| Power output warranty | 30 years linear (max 2 % year 1; ≤0.40 %/yr thereafter) |
| Output retention at 30 years | ≥87.4 % |
| Certifications | |
| Module performance | IEC 61215 |
| Module safety | IEC 61730 |
| Quality management | ISO 9001 |
| Environmental management | ISO 14001 |
| Health & safety management | ISO 45001 |
| Advanced testing | IEC 62941 |
| MCS | Eligible (BABT 8515 reference) |
| Product Reference | |
| Part number | JAM54D-41-460-LR-TS-AB-MC4 |
| Series | JA Solar DeepBlue 4.0 |
| Manufacturer | JA Solar Technology Co., Ltd. (Bloomberg Tier 1) |
Frequently Asked Questions
Related Products
JA Solar 465W N-type LR Traceable Black Frame
Black frame with white backsheet — same cell tech, silver/white back
Solis Hybrid Inverter (RHI Series)
Compatible single- and three-phase hybrid inverters for solar+storage
Growatt MIC 1000TL-X Solar Inverter
Single-phase string inverter for small residential solar arrays
myenergi Eddi Solar PV Diverter
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Product Information
Product Information
Shipping & Returns
Shipping & Returns
JA Solar 460W N-type Double Glass Monofacial LR Traceable 54 Cell All Black MC4
JA Solar 460W N-type Double Glass Monofacial LR Traceable 54 Cell All Black MC4
The JA Solar JAM54D41-460 LR is a 460 W N-type TOPCon all-black monofacial solar panel from JA Solar’s DeepBlue 4.0 series. It delivers 23 % module efficiency from 108 laser-traceable half-cut cells in a double-glass, full-black format measuring 1,762 × 1,134 × 30 mm and weighing 22 kg. N-type TOPCon cell technology gives this panel a significant advantage over standard P-type PERC panels: virtually zero light-induced degradation (LID), a superior temperature coefficient of −0.29 %/°C, and better energy yield in overcast and low-irradiance conditions — all of which matter in the UK climate. The double-glass construction eliminates the rear polymeric backsheet, improving long-term durability, fire resistance, and resistance to potential-induced degradation (PID). The all-black aesthetic — black frame, black backsheet glass and black cells — makes this the preferred choice for visible residential rooftop installations where appearance is important. Supplied with genuine MC4 connectors on 1,200 mm cables. MCS eligible. 25-year product warranty; 30-year linear power output warranty.
460 W
Rated output
23%
Module efficiency
N-type TOPCon
Cell technology
−0.29 %/°C
Temp. coefficient
30 yrs
Performance warranty
All Black
Frame + glass + cells
ℹ MCS eligible — qualifies for UK Smart Export Guarantee (SEG): This panel is eligible for MCS-certified solar installations in the UK. Installations using MCS-certified components and an MCS-registered installer qualify the homeowner for the Smart Export Guarantee (SEG), allowing payment for electricity exported to the grid. Confirm MCS reference with your installer prior to purchase.
N-type TOPCon vs Standard P-type PERC — Why It Matters
| This panel (N-type TOPCon) | Standard P-type PERC | |
|---|---|---|
| Efficiency (module) | 23 % | Typically 20 – 21 % |
| Light-induced degradation (LID) | Virtually zero | 0.5 – 2 % initial loss |
| Temperature coefficient (Pmax) | −0.29 %/°C | Typically −0.35 %/°C |
| Low-light performance | Superior (enhanced IR response) | Good |
| 30-year output retention | ≥87.4 % of rated power | Typically ≥80 % |
| Degradation rate (annual) | ≤0.40 % per year | 0.55 % per year (typical) |
Performance comparisons are indicative. STC conditions apply. Real-world yield depends on system design, orientation, shading and local climate.
Key Features
N-type TOPCon at 23 % Efficiency — More Power from the Same Roof Area
N-type TOPCon (Tunnel Oxide Passivated Contact) cells achieve higher efficiency than standard PERC cells by passivating the rear contact with a thin tunnel oxide layer, minimising electron recombination losses. At 23 % module efficiency, this panel generates more electricity per square metre than virtually all P-type PERC panels on the market. On a typical UK semi-detached roof with space for 10 panels, the efficiency gain over a 20 % panel translates to approximately 15 % more annual energy yield from the same footprint. N-type cells also exhibit virtually zero light-induced degradation (LID): P-type cells can lose 0.5 – 2 % of output in their first few hours of exposure; N-type cells do not suffer this effect.
23% efficiencyN-type TOPConVirtually zero LID
Double Glass Monofacial — 30+ Year Durability Without a Backsheet
Rather than a conventional polymer backsheet, the rear of this panel uses a second sheet of tempered glass (3.2 mm rear glass). The double-glass construction eliminates the risk of backsheet cracking, delamination, and moisture ingress that can occur over time with polymer backsheets. Glass also has far superior resistance to potential-induced degradation (PID), UV yellowing and fire. The monofacial design (opaque rear glass) is chosen deliberately here: it maintains the full all-black aesthetic and is the appropriate choice for pitched roof installations where the rear face is not exposed to light. Rated for snow loads up to 5,400 Pa and wind loads up to 2,400 Pa.
Double glass (no backsheet)5,400 Pa snow load2,400 Pa wind loadPID resistant
All-Black Aesthetic — Frame, Cells and Rear Glass
Every visible component of this panel is black: anodised aluminium black frame, black rear glass, black busbars and black cell matrix. There is no silver frame, no white backsheet and no visible silver interconnects. The result is a uniform, low-contrast appearance that blends with dark tile roofs (slate, anthracite concrete, dark clay) and suits architectural installations where the solar array should be visually unobtrusive. The all-black design also helps in snow shedding: the darker surface absorbs more heat, accelerating snow melt and reducing downtime from snow coverage in winter months.
Full all-blackBlack frame + cells + rear glassSnow shedding benefit
LR Laser Traceability — Full Supply Chain Transparency
The ‘LR’ designation indicates that every individual cell in this module is laser-marked with a unique traceable identifier. This allows the cell’s origin, manufacturing batch, and quality control records to be tracked throughout the supply chain from wafer to finished module. Laser traceability is increasingly specified by commercial installers, developers and ESG-conscious buyers as part of responsible sourcing requirements, and is relevant to procurement policies relating to modern slavery and ethical supply chains. JA Solar’s traceability programme is independently verified.
Laser cell traceabilitySupply chain verifiedESG procurement eligible
MBB 16-Busbar Half-Cell Architecture — Shade Tolerance and Reliability
The 108 cells in this panel are half-cut: each standard cell is divided into two, reducing resistive losses within the module. Half-cut cells lower the operating current of each cell by half, which means resistive (I²R) losses are reduced by 75 % compared to full-cell modules of the same size. The 16 multi-busbar (MBB) design further distributes current collection across more contact points, reducing the impact of micro-cracks and improving shade tolerance. Three bypass diodes in the IP68 junction box provide cell-level shade bypassing, limiting the impact of partial shading on overall string output.
108 half-cut cells16 busbars (MBB)3 bypass diodesIP68 junction box
Superior UK Climate Performance — Low-Light and Temperature Coefficient
The UK receives around 1,000 – 1,200 hours of sunshine annually, much of it at low irradiance. N-type TOPCon cells generate a higher proportion of their rated output at low light intensities due to enhanced infrared (IR) spectral response, making them particularly well suited to overcast British conditions. The temperature coefficient of −0.29 %/°C means that for every degree above 25°C, this panel loses only 0.29 % of output — compared to −0.35 % for a typical PERC module. In a 50°C cell temperature (common on a warm UK summer day), this panel retains approximately 3 % more of its rated power than a standard PERC panel.
−0.29%/°C temperature coefficientEnhanced low-light responseBetter UK climate yield
30-Year Linear Power Guarantee — ≥87.4 % After Three Decades
JA Solar’s performance warranty provides specific annual degradation guarantees rather than a simple end-point value: no more than 2 % degradation in the first year, then ≤0.40 % per year thereafter. After 30 years, the panel is guaranteed to produce at least 87.4 % of its original rated output. This is significantly better than the 80 % retention guaranteed by most standard P-type modules, and reflects the lower inherent degradation rate of N-type cells. A separate 25-year product warranty covers defects in materials and workmanship. JA Solar is a Bloomberg Tier 1 module manufacturer, providing confidence in long-term warranty support.
30-yr linear performance≥87.4% after 30 years25-yr product warrantyBloomberg Tier 1
Technical Specifications
| Electrical Parameters at STC (1,000 W/m², 25°C, AM 1.5) | |
| Rated maximum power (Pmax) | 460 W (+0/−5 W tolerance) |
| Module efficiency | 23.0 % |
| Maximum power voltage (Vmp) | 33.68 V |
| Maximum power current (Imp) | 13.66 A |
| Open circuit voltage (Voc) | 40.6 V |
| Short circuit current (Isc) | 14.43 A |
| Temperature Coefficients | |
| Power (Pmax) | −0.29 %/°C |
| Voltage (Voc) | −0.26 %/°C |
| Current (Isc) | +0.046 %/°C |
| Normal operating cell temperature (NOCT) | 44 ± 2 °C |
| Mechanical | |
| Dimensions (L × W × D) | 1,762 × 1,134 × 30 mm |
| Weight | 22 kg |
| Front glass | 3.2 mm tempered |
| Rear glass | 3.2 mm tempered (double glass, monofacial) |
| Frame | Anodised aluminium, all-black |
| Junction box | IP68, 3 bypass diodes |
| Connectors | MC4 (genuine) |
| Cable | 4 mm², 1,200 mm (both leads) |
| Cell Technology | |
| Cell type | N-type TOPCon monocrystalline (Bycium+) |
| Cell configuration | 108 half-cut cells (54 × 2) |
| Multi-busbar (MBB) | 16 busbars per cell |
| Traceability | Laser-traceable (LR designation) |
| Electrical Limits | |
| Maximum system voltage | 1,500 V DC |
| Series fuse rating | 30 A |
| Operating temperature | −40 – +85 °C |
| Mechanical Loads | |
| Max snow load | 5,400 Pa (front) |
| Max wind load | 2,400 Pa |
| Warranty | |
| Product warranty | 25 years |
| Power output warranty | 30 years linear (max 2 % year 1; ≤0.40 %/yr thereafter) |
| Output retention at 30 years | ≥87.4 % |
| Certifications | |
| Module performance | IEC 61215 |
| Module safety | IEC 61730 |
| Quality management | ISO 9001 |
| Environmental management | ISO 14001 |
| Health & safety management | ISO 45001 |
| Advanced testing | IEC 62941 |
| MCS | Eligible (BABT 8515 reference) |
| Product Reference | |
| Part number | JAM54D-41-460-LR-TS-AB-MC4 |
| Series | JA Solar DeepBlue 4.0 |
| Manufacturer | JA Solar Technology Co., Ltd. (Bloomberg Tier 1) |
Frequently Asked Questions
Related Products
JA Solar 465W N-type LR Traceable Black Frame
Black frame with white backsheet — same cell tech, silver/white back
Solis Hybrid Inverter (RHI Series)
Compatible single- and three-phase hybrid inverters for solar+storage
Growatt MIC 1000TL-X Solar Inverter
Single-phase string inverter for small residential solar arrays
myenergi Eddi Solar PV Diverter
Diverts surplus solar generation to hot water immersion heater
$86.13
Original: $287.10
-70%JA Solar 460W N-type Double Glass Monofacial LR Traceable 54 Cell All Black MC4—
$287.10
$86.13Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The JA Solar JAM54D41-460 LR is a 460 W N-type TOPCon all-black monofacial solar panel from JA Solar’s DeepBlue 4.0 series. It delivers 23 % module efficiency from 108 laser-traceable half-cut cells in a double-glass, full-black format measuring 1,762 × 1,134 × 30 mm and weighing 22 kg. N-type TOPCon cell technology gives this panel a significant advantage over standard P-type PERC panels: virtually zero light-induced degradation (LID), a superior temperature coefficient of −0.29 %/°C, and better energy yield in overcast and low-irradiance conditions — all of which matter in the UK climate. The double-glass construction eliminates the rear polymeric backsheet, improving long-term durability, fire resistance, and resistance to potential-induced degradation (PID). The all-black aesthetic — black frame, black backsheet glass and black cells — makes this the preferred choice for visible residential rooftop installations where appearance is important. Supplied with genuine MC4 connectors on 1,200 mm cables. MCS eligible. 25-year product warranty; 30-year linear power output warranty.
460 W
Rated output
23%
Module efficiency
N-type TOPCon
Cell technology
−0.29 %/°C
Temp. coefficient
30 yrs
Performance warranty
All Black
Frame + glass + cells
ℹ MCS eligible — qualifies for UK Smart Export Guarantee (SEG): This panel is eligible for MCS-certified solar installations in the UK. Installations using MCS-certified components and an MCS-registered installer qualify the homeowner for the Smart Export Guarantee (SEG), allowing payment for electricity exported to the grid. Confirm MCS reference with your installer prior to purchase.
N-type TOPCon vs Standard P-type PERC — Why It Matters
| This panel (N-type TOPCon) | Standard P-type PERC | |
|---|---|---|
| Efficiency (module) | 23 % | Typically 20 – 21 % |
| Light-induced degradation (LID) | Virtually zero | 0.5 – 2 % initial loss |
| Temperature coefficient (Pmax) | −0.29 %/°C | Typically −0.35 %/°C |
| Low-light performance | Superior (enhanced IR response) | Good |
| 30-year output retention | ≥87.4 % of rated power | Typically ≥80 % |
| Degradation rate (annual) | ≤0.40 % per year | 0.55 % per year (typical) |
Performance comparisons are indicative. STC conditions apply. Real-world yield depends on system design, orientation, shading and local climate.
Key Features
N-type TOPCon at 23 % Efficiency — More Power from the Same Roof Area
N-type TOPCon (Tunnel Oxide Passivated Contact) cells achieve higher efficiency than standard PERC cells by passivating the rear contact with a thin tunnel oxide layer, minimising electron recombination losses. At 23 % module efficiency, this panel generates more electricity per square metre than virtually all P-type PERC panels on the market. On a typical UK semi-detached roof with space for 10 panels, the efficiency gain over a 20 % panel translates to approximately 15 % more annual energy yield from the same footprint. N-type cells also exhibit virtually zero light-induced degradation (LID): P-type cells can lose 0.5 – 2 % of output in their first few hours of exposure; N-type cells do not suffer this effect.
23% efficiencyN-type TOPConVirtually zero LID
Double Glass Monofacial — 30+ Year Durability Without a Backsheet
Rather than a conventional polymer backsheet, the rear of this panel uses a second sheet of tempered glass (3.2 mm rear glass). The double-glass construction eliminates the risk of backsheet cracking, delamination, and moisture ingress that can occur over time with polymer backsheets. Glass also has far superior resistance to potential-induced degradation (PID), UV yellowing and fire. The monofacial design (opaque rear glass) is chosen deliberately here: it maintains the full all-black aesthetic and is the appropriate choice for pitched roof installations where the rear face is not exposed to light. Rated for snow loads up to 5,400 Pa and wind loads up to 2,400 Pa.
Double glass (no backsheet)5,400 Pa snow load2,400 Pa wind loadPID resistant
All-Black Aesthetic — Frame, Cells and Rear Glass
Every visible component of this panel is black: anodised aluminium black frame, black rear glass, black busbars and black cell matrix. There is no silver frame, no white backsheet and no visible silver interconnects. The result is a uniform, low-contrast appearance that blends with dark tile roofs (slate, anthracite concrete, dark clay) and suits architectural installations where the solar array should be visually unobtrusive. The all-black design also helps in snow shedding: the darker surface absorbs more heat, accelerating snow melt and reducing downtime from snow coverage in winter months.
Full all-blackBlack frame + cells + rear glassSnow shedding benefit
LR Laser Traceability — Full Supply Chain Transparency
The ‘LR’ designation indicates that every individual cell in this module is laser-marked with a unique traceable identifier. This allows the cell’s origin, manufacturing batch, and quality control records to be tracked throughout the supply chain from wafer to finished module. Laser traceability is increasingly specified by commercial installers, developers and ESG-conscious buyers as part of responsible sourcing requirements, and is relevant to procurement policies relating to modern slavery and ethical supply chains. JA Solar’s traceability programme is independently verified.
Laser cell traceabilitySupply chain verifiedESG procurement eligible
MBB 16-Busbar Half-Cell Architecture — Shade Tolerance and Reliability
The 108 cells in this panel are half-cut: each standard cell is divided into two, reducing resistive losses within the module. Half-cut cells lower the operating current of each cell by half, which means resistive (I²R) losses are reduced by 75 % compared to full-cell modules of the same size. The 16 multi-busbar (MBB) design further distributes current collection across more contact points, reducing the impact of micro-cracks and improving shade tolerance. Three bypass diodes in the IP68 junction box provide cell-level shade bypassing, limiting the impact of partial shading on overall string output.
108 half-cut cells16 busbars (MBB)3 bypass diodesIP68 junction box
Superior UK Climate Performance — Low-Light and Temperature Coefficient
The UK receives around 1,000 – 1,200 hours of sunshine annually, much of it at low irradiance. N-type TOPCon cells generate a higher proportion of their rated output at low light intensities due to enhanced infrared (IR) spectral response, making them particularly well suited to overcast British conditions. The temperature coefficient of −0.29 %/°C means that for every degree above 25°C, this panel loses only 0.29 % of output — compared to −0.35 % for a typical PERC module. In a 50°C cell temperature (common on a warm UK summer day), this panel retains approximately 3 % more of its rated power than a standard PERC panel.
−0.29%/°C temperature coefficientEnhanced low-light responseBetter UK climate yield
30-Year Linear Power Guarantee — ≥87.4 % After Three Decades
JA Solar’s performance warranty provides specific annual degradation guarantees rather than a simple end-point value: no more than 2 % degradation in the first year, then ≤0.40 % per year thereafter. After 30 years, the panel is guaranteed to produce at least 87.4 % of its original rated output. This is significantly better than the 80 % retention guaranteed by most standard P-type modules, and reflects the lower inherent degradation rate of N-type cells. A separate 25-year product warranty covers defects in materials and workmanship. JA Solar is a Bloomberg Tier 1 module manufacturer, providing confidence in long-term warranty support.
30-yr linear performance≥87.4% after 30 years25-yr product warrantyBloomberg Tier 1
Technical Specifications
| Electrical Parameters at STC (1,000 W/m², 25°C, AM 1.5) | |
| Rated maximum power (Pmax) | 460 W (+0/−5 W tolerance) |
| Module efficiency | 23.0 % |
| Maximum power voltage (Vmp) | 33.68 V |
| Maximum power current (Imp) | 13.66 A |
| Open circuit voltage (Voc) | 40.6 V |
| Short circuit current (Isc) | 14.43 A |
| Temperature Coefficients | |
| Power (Pmax) | −0.29 %/°C |
| Voltage (Voc) | −0.26 %/°C |
| Current (Isc) | +0.046 %/°C |
| Normal operating cell temperature (NOCT) | 44 ± 2 °C |
| Mechanical | |
| Dimensions (L × W × D) | 1,762 × 1,134 × 30 mm |
| Weight | 22 kg |
| Front glass | 3.2 mm tempered |
| Rear glass | 3.2 mm tempered (double glass, monofacial) |
| Frame | Anodised aluminium, all-black |
| Junction box | IP68, 3 bypass diodes |
| Connectors | MC4 (genuine) |
| Cable | 4 mm², 1,200 mm (both leads) |
| Cell Technology | |
| Cell type | N-type TOPCon monocrystalline (Bycium+) |
| Cell configuration | 108 half-cut cells (54 × 2) |
| Multi-busbar (MBB) | 16 busbars per cell |
| Traceability | Laser-traceable (LR designation) |
| Electrical Limits | |
| Maximum system voltage | 1,500 V DC |
| Series fuse rating | 30 A |
| Operating temperature | −40 – +85 °C |
| Mechanical Loads | |
| Max snow load | 5,400 Pa (front) |
| Max wind load | 2,400 Pa |
| Warranty | |
| Product warranty | 25 years |
| Power output warranty | 30 years linear (max 2 % year 1; ≤0.40 %/yr thereafter) |
| Output retention at 30 years | ≥87.4 % |
| Certifications | |
| Module performance | IEC 61215 |
| Module safety | IEC 61730 |
| Quality management | ISO 9001 |
| Environmental management | ISO 14001 |
| Health & safety management | ISO 45001 |
| Advanced testing | IEC 62941 |
| MCS | Eligible (BABT 8515 reference) |
| Product Reference | |
| Part number | JAM54D-41-460-LR-TS-AB-MC4 |
| Series | JA Solar DeepBlue 4.0 |
| Manufacturer | JA Solar Technology Co., Ltd. (Bloomberg Tier 1) |
Frequently Asked Questions
Related Products
JA Solar 465W N-type LR Traceable Black Frame
Black frame with white backsheet — same cell tech, silver/white back
Solis Hybrid Inverter (RHI Series)
Compatible single- and three-phase hybrid inverters for solar+storage
Growatt MIC 1000TL-X Solar Inverter
Single-phase string inverter for small residential solar arrays
myenergi Eddi Solar PV Diverter
Diverts surplus solar generation to hot water immersion heater
