Product Description

JA Solar JAM78S10 435-455W MBB Half-Cell PERC Solar Module

The JA Solar JAM78S10 435-455W MBB Half-Cell PERC Solar Module is a high-efficiency photovoltaic module designed for commercial, industrial, and utility-scale solar applications. Featuring advanced Mono PERC cell technology, Multi-Busbar (MBB) design, and half-cell configuration, this module delivers superior power output, improved reliability, and optimized energy generation performance.

With a power range from 435W to 455W and module efficiency up to 21.0%, the JAM78S10 series provides excellent energy density and helps reduce balance-of-system costs. The advanced half-cell structure decreases internal electrical losses, while the MBB technology improves current collection efficiency and enhances module durability.

Designed with 156 high-efficiency mono PERC half cells (6×26), the JA Solar JAM78S10 module offers excellent performance under different operating conditions, including improved temperature behavior, lower shading losses, and reduced hot spot risks. It supports up to 1500V DC system voltage, making it suitable for large-scale photovoltaic power plants and demanding solar installations.

The module features a robust anodized aluminum frame, IP68-rated junction box, and strong mechanical load resistance, ensuring stable operation in harsh outdoor environments. With reliable long-term performance and JA Solar's proven manufacturing quality, the JAM78S10 series is an ideal choice for high-performance solar energy systems.

Product Features

High Power Output up to 455W

The JAM78S10 series delivers a maximum power output of 455W with module efficiency reaching 21.0%, enabling higher electricity generation from limited installation space and reducing overall system costs.

Advanced MBB PERC Technology

Equipped with Multi-Busbar (MBB) Mono PERC solar cells, the module improves current collection efficiency, reduces resistance losses, and enhances electrical performance compared with conventional busbar designs.

Half-Cell Design for Higher Efficiency

The half-cell configuration divides standard cells into smaller units, reducing internal current losses and improving power output. This design also provides:

• Lower operating temperature
• Reduced mismatch losses
• Better shading tolerance
• Lower hot spot risk
• Excellent Temperature Performance

With an optimized temperature coefficient of -0.350%/℃ for Pmax, the module maintains stable power generation performance even under high-temperature environments.

Improved Mechanical Reliability

The reinforced module structure supports:

• Front load resistance up to 5400Pa
• Rear load resistance up to 2400Pa
• Operating temperature range from -40℃ to +85℃

making it suitable for various climate conditions.

High System Compatibility

The JAM78S10 module supports:

• Maximum system voltage: 1500V DC
• Maximum series fuse rating: 20A
• IP68 waterproof junction box

providing safe and reliable operation for large-scale solar installations.

Wide Application Range

Suitable for:

• Utility-scale solar power plants
• Commercial rooftop solar systems
• Industrial PV projects
• Ground-mounted photovoltaic installations
• Large energy generation projects

Technical Specifications

Electrical Characteristics (STC)

Mechanical Specifications

Operating Conditions