Product Description

JA Solar JAM72D20 440-465W PERC Half-Cell Double Glass Solar Module

The JA Solar JAM72D20 440-465W PERC Half-Cell Double Glass Solar Module is a high-performance bifacial photovoltaic module designed for utility-scale solar farms, commercial rooftop systems, and industrial PV applications. Featuring advanced PERC bifacial cell technology, multi-busbar (MBB) design, and half-cell configuration, this module delivers higher power output, improved energy yield, and enhanced long-term reliability.

With a power output range of 440W to 465W and module efficiency up to 20.9%, the JAM72D20 series maximizes electricity generation while reducing installation costs and system balance-of-system expenses. The bifacial design allows the module to capture additional solar radiation from the rear side, increasing overall energy production under suitable installation conditions.

The module integrates 144 high-efficiency mono PERC half cells (6×24) with a durable 2.0mm front glass and 2.0mm rear glass structure, providing excellent resistance against humidity, UV exposure, temperature fluctuations, and harsh environmental conditions. The double glass design improves mechanical strength and ensures reliable operation throughout the module's service life.

Designed for high-performance photovoltaic systems, the JA Solar JAM72D20 supports 1500V DC system voltage, features an IP68-rated junction box, and provides excellent mechanical load resistance up to 5400Pa on the front side, making it an ideal solution for demanding solar installations worldwide.

Product Features

1. High Power Output up to 465W

The JAM72D20 series provides a wide power range from 440W to 465W, with maximum module efficiency reaching 20.9%. The high-power output enables greater electricity generation per unit area and helps optimize project economics.

Key advantages:

• Maximum output power: 465W
• Maximum efficiency: 20.9%
• Reduced installation area requirements
• Lower BOS (Balance of System) costs

2. Advanced PERC Half-Cell Technology

The module uses advanced Mono PERC half-cell technology, which reduces internal electrical losses and improves module performance.

The half-cell configuration provides:

• Lower series resistance losses
• Higher module output power
• Improved temperature performance
• Reduced mismatch losses
• Better shading tolerance
• Lower hot spot risk

3. Bifacial Double Glass Design

The JAM72D20 adopts a double glass bifacial structure, allowing the module to generate electricity from both the front and rear sides.

Benefits include:

• Additional rear-side energy generation
• Improved durability and reliability
• Better resistance against moisture and environmental stress
• Longer service life compared with traditional backsheet modules

The bifaciality factor reaches 70% ±10%, making it suitable for projects with reflective ground surfaces such as white roofs, sand areas, and optimized ground-mounted systems.

4. MBB Cell Technology for Higher Reliability

The Multi-Busbar (MBB) design improves current collection efficiency and reduces electrical losses.

Advantages:

• Better current transmission
• Reduced micro-crack impact
• Improved mechanical reliability
• Enhanced module durability

5. Excellent Mechanical Performanc

The robust double glass structure provides strong mechanical resistance:

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

The module is designed to withstand various harsh outdoor environments, including high wind and snow conditions.

6. High Safety and System Compatibility

The JAM72D20 module supports:

• Maximum system voltage: 1500V DC
• Maximum series fuse rating: 25A
• Junction box protection: IP68
• Junction box: 3 bypass diodes

These features ensure safe operation and compatibility with large-scale PV systems.

7. Wide Application Areas

The JA Solar JAM72D20 series is suitable for:

• Utility-scale solar power plants
• Commercial rooftop PV systems
• Industrial solar projects
• Ground-mounted solar installations
• Agricultural photovoltaic applications
• High-reliability renewable energy project

Technical Specifications

Electrical Characteristics (STC)

Mechanical Specifications

Operating Conditions