The JA Solar JAM72D42-640/LB is a 640 W n-type double-glass bifacial solar module from the DeepBlue 4.0 Pro range. It combines 16-busbar half-cell technology with a 22.9% stated module efficiency, robust 2.0 mm double-glass construction and bifacial capability for professionally designed commercial, industrial and ground-mounted photovoltaic systems.
Key Features
- 640 W rated maximum power at standard test conditions.
- n-type monocrystalline cell technology with 16BB half-cell construction.
- 22.9% stated module efficiency for high power density.
- Bifacial module design, with 80% +/- 10% stated bifaciality.
- Double-glass construction with 2.0 mm front glass and 2.0 mm back glass.
- IP68 junction box with three bypass diodes for protected electrical connections.
- 1,500 V DC maximum system voltage for appropriately designed high-voltage PV arrays.
- 12-year product warranty and 30-year linear power output warranty, subject to JA Solar warranty terms.
Applications
- Commercial and industrial rooftop solar installations.
- Ground-mounted PV arrays and utility-scale solar projects.
- Solar installations where bifacial module performance can be considered in the system design.
- Large photovoltaic systems designed within the stated electrical, mounting and load limits.
Why Choose This Product?
The JAM72D42-640/LB combines high module power with n-type cell technology and double-glass construction for large-scale PV projects. Its bifacial design can capture rear-side irradiance where installation conditions allow, while its 2.0 mm double-glass structure and high static-load ratings support robust, professionally specified solar arrays.
Important Notes
- Electrical ratings are measured at standard test conditions: 1,000 W/m² irradiance, 25°C cell temperature and AM1.5G spectrum. Actual output varies with irradiance, temperature, orientation, shading, rear-side irradiance and system design.
- Bifacial gain is site-dependent. The datasheet provides electrical characteristics at a 10% rear/front solar irradiance ratio, but actual rear-side production must be modelled for the installation.
- Confirm string voltage, inverter input limits, mounting compatibility, connector compatibility and local installation requirements before purchase or installation.
- For Nextracker installations, the datasheet advises referring to the compatibility approval letter between JA Solar and Nextracker for maximum static-load guidance.
- The datasheet lists QC 4.10-351 or MC4-EVO2A connectors. Confirm the supplied connector type and cable configuration for the specific shipment.
- Installation should be completed by a qualified solar installer in accordance with the manufacturer’s installation instructions and applicable regulations.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | JA Solar |
| Series | DeepBlue 4.0 Pro |
| Model | JAM72D42-640/LB |
| Product Type | n-type double-glass bifacial solar module |
| Rated Maximum Power (Pmax) | 640 W |
| Module Efficiency | 22.9% |
| Cell Conversion Efficiency | Up to 26% |
| Open-Circuit Voltage (Voc) | 52.87 V |
| Maximum Power Voltage (Vmp) | 44.29 V |
| Short-Circuit Current (Isc) | 15.31 A |
| Maximum Power Current (Imp) | 14.45 A |
| Power Tolerance | 0 to +3% |
| Cell Type | n-type monocrystalline |
| Cell Technology | 16BB half-cell |
| Number of Cells | 144 (6 x 24) |
| Bifaciality | 80% +/- 10% |
| Electrical Characteristics at 10% Rear/Front Irradiance Ratio | 691 W Pmax, 52.87 V Voc, 44.29 V Vmp, 16.53 A Isc and 15.61 A Imp |
| Front / Back Glass | 2.0 mm / 2.0 mm |
| Dimensions (L x W x H) | 2,465 +/- 2 x 1,134 +/- 2 x 30 +/- 1 mm |
| Weight | 34.6 kg |
| Cable Cross-Section | 4 sq.mm (IEC), 12 AWG (UL) |
| Junction Box | IP68, 3 diodes |
| Connector | QC 4.10-351 / MC4-EVO2A |
| Cable Length, Portrait | 300 mm positive / 400 mm negative, including connector |
| Cable Length, Landscape | 1,500 mm positive / 1,500 mm negative, including connector |
| Maximum System Voltage | 1,500 V DC |
| Maximum Series Fuse Rating | 30 A |
| Operating Temperature | -40°C to +85°C |
| Maximum Static Load, Front | 5,400 Pa |
| Maximum Static Load, Back | 2,400 Pa |
| NOCT | 45 +/- 2°C |
| Fire Performance | UL Type 29 |
| Product Warranty | 12 years |
| Linear Power Output Warranty | 30 years |
| Standards Listed | IEC 61215, IEC 61730, UL 61215 and UL 61730 |
Important:
All solar products, power systems, water heating and gas products and their components must be installed by appropriately qualified personnel. All installations must adhere to local wiring regulations and standards.
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