JA Solar JAM78S10-440/MR 440W Mono PERC Half-Cell Solar Panel
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JA Solar JAM78S10-440/MR 440W Mono PERC Half-Cell Solar Panel
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JA Solar JAM78S10-440/MR — 440W Mono PERC Half-Cell Solar Panel
The JA Solar JAM78S10-440/MR is a high-efficiency 440W monocrystalline PERC half-cell solar module featuring Multi-Busbar (MBB) technology. Designed for both residential and commercial installations, this panel delivers superior performance with a silver frame and white backsheet (SLV/WHT).
Key Features
- 156 half-cut PERC monocrystalline cells (6×26)
- 440W nameplate capacity with 20.3% module efficiency
- Multi-Busbar (MBB) technology for higher power output
- Half-cell configuration reduces shading losses and hot-spot risk
- 1500V DC maximum system voltage
- Silver frame / White backsheet
- Better mechanical loading tolerance
- Lower temperature coefficient for improved performance in hot climates
Electrical Specifications (STC)
| Parameter | Value |
|---|---|
| Rated Maximum Power (Pmax) | 440W |
| Open Circuit Voltage (Voc) | 54.25V |
| Maximum Power Voltage (Vmp) | 44.15V |
| Short Circuit Current (Isc) | 10.44A |
| Maximum Power Current (Imp) | 9.97A |
| Module Efficiency | 20.3% |
| Power Tolerance | 0~+5W |
| Max System Voltage | 1500V DC (IEC) |
| Max Series Fuse Rating | 20A |
Temperature Coefficients
| Parameter | Value |
|---|---|
| Temperature Coefficient of Pmax (γ_Pmp) | -0.350%/°C |
| Temperature Coefficient of Voc (β_Voc) | -0.289%/°C |
| Temperature Coefficient of Isc (α_Isc) | +0.051%/°C |
| NOCT | 45±2°C |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Cell Type | Monocrystalline PERC |
| Number of Cells | 156 (6×26) |
| Dimensions | 2180×996×40mm (85.83×39.21×1.57 in) |
| Weight | 24.5 kg (54.0 lbs) |
| Frame | Anodized Aluminium (Silver) |
| Backsheet | White |
| Cable Cross Section | 4mm² |
| Connector | PV-KST4-EVO2 / QC4.10-35 |
| Operating Temperature | -40°C ~ +85°C |
Certifications
IEC 61215 | IEC 61730 | ISO 9001:2015 | ISO 14001:2015 | OHSAS 18001:2007
Warranty
- 12-Year Product Warranty (materials and workmanship)
- 25-Year Linear Power Output Warranty
Datasheet
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.
