S SOLARSPECS
JA Solar is one of the world's largest solar panel manufacturers, founded in 2005 and headquartered in Beijing, supplying modules for 100+ countries. Designed for industrial installations, the JA Solar JAM72S20-450/MR combines 450W power output with 20.74% efficiency in a Monocrystalline form factor.
🏭View all 312 JA Solar models Brand range: 165W–635W
Monocrystalline

JA Solar JAM72S20-450/MR

Max Power
450W
Efficiency
20.74%
Operating V
41.5V
Warranty
25Y
JA Solar JAM72S20-450/MR logo
Technical Specifications
Open Circuit Voltage (Voc)49.7V
Short Circuit Current (Isc)11.36A
Voltage at Pmax (Vmp)41.5V
Current at Pmax (Imp)10.84A
Temp. Coefficient of Pmax-0.335%/°C
Dimensions1892 x 1147 x 35 mm
Weight27.1kg
NOCT44.61°C
PTC Rating427.9W
📋 Data verified: June 2026 📄 Specs based on STC (1000 W/m², 25°C, AM 1.5) 🏷️ 312 JA Solar models in database

FAQ

What is the max power output of the JA Solar JAM72S20-450/MR?

The JA Solar JAM72S20-450/MR is rated at 450W under STC (1000 W/m², 25°C, AM 1.5).

How long is the warranty for the JA Solar JAM72S20-450/MR?

The JAM72S20-450/MR comes with a 25-year product warranty covering defects and degradation.

What are the dimensions and weight of the JA Solar JAM72S20-450/MR?

It measures 1892 x 1147 x 35 mm and weighs 27.1kg.

How efficient is the JA Solar JAM72S20-450/MR?

This panel has 20.74% efficiency, which is above average for commercial solar panels.

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📊 Brand Context

JA Solar offers 312 solar panel models from 165W to 635W.

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