Product Overview
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 |
