Exotronic 220W Fusion 48V N-Type TOPCon Fixed Solar Panel

The Exotronic 220W Fusion 48V Solar Panel combines N-Type TOPCon cell technology with a higher voltage, lower current electrical configuration for off grid systems where reducing solar-side current can simplify cable runs and minimise voltage drop.

Producing 220W from a compact 1470 × 670mm footprint, the panel operates at 59.4V and only 3.7A at maximum power. This makes it quite different from Exotronic's standard 220W Fusion panel, which produces a similar wattage at a much lower voltage and higher current. It is particularly useful in appropriately designed higher voltage solar arrays, remote installations and systems where longer cable runs make reducing current advantageous.

Higher Voltage, Lower Current Output

At maximum power the panel produces 59.4V at 3.7A, with an open circuit voltage of 69.3V. For the same amount of power, increasing voltage reduces the current travelling through the solar cabling. Lower current means less voltage drop and lower resistive losses for a given cable size and length, which can be particularly useful when the panels are positioned some distance from the solar regulator.

The higher panel voltage can also reduce the need to place several lower voltage panels in series when building a higher voltage solar array.

N-Type TOPCon Cell Technology

The Fusion Series uses N-Type TOPCon solar cells with a stated cell efficiency of 25.2%. TOPCon technology uses a passivated contact structure to reduce electrical losses within the cell, helping achieve higher conversion efficiency and strong long term performance from a relatively compact panel footprint.

N-Type cells are also less susceptible to some of the degradation mechanisms associated with traditional P-Type solar cells, making them well suited to systems expected to operate for many years. The 25.2% figure refers to the efficiency of the individual solar cells rather than the complete assembled module.

Built for Permanent Outdoor Installation

The front of the panel uses 3.2mm tempered glass with a black anodised aluminium frame for structural support and corrosion resistance. The panel is rated to withstand wind loads up to 2400Pa and snow loads up to 5400Pa and is specified for operation between -40°C and +85°C. Salt mist and ammonia resistance also make it suitable for exposed coastal, agricultural and remote installations.

MC4 Compatible Connections

An 800mm fly lead and MC4 compatible connectors provide a familiar connection method for permanent solar installations. The junction box is rated IP65 and the complete installation should use appropriately rated solar cable, connectors, fusing and isolation equipment suitable for the voltage and current of the array.

Solar Regulator Compatibility

This panel must be used with a solar charge controller or other compatible solar input device suitable for its voltage. The regulator's maximum PV input voltage must remain comfortably above the panel's 69.3V open circuit voltage, including any increase in Voc that can occur in cold conditions.

When connecting multiple panels, the combined array voltage and current also need to remain within the controller's PV input limits. Because this is a relatively high voltage single panel, regulator and battery system compatibility should be checked carefully before installation rather than selecting a controller based on panel wattage alone.

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Specifications