The TOMZN TZG40-PV 1200VDC Surge Protective Device is a device that protects solar panels and other electrical equipment from surges and spikes in voltage. It does this by diverting the surge current to the ground, preventing it from damaging the equipment. Features of TOMZN TZG40-PV 1200VDC Surge Protective Device: Protects solar panels and other electrical equipment from surges and spikes in voltage Diverts the surge current to the ground 1200VDC rating IP65 rated for dust and water protection Easy to install Specification of TOMZN TZG40-PV 1200VDC Surge Protective Device: Model: TZG40-PV Voltage rating: 1200VDC Current rating: 40A Protection level: Up to 100kA IP rating: IP65 Dimensions: Width: 120mm Height: 80mm Depth: 60mm Uses: Protects solar panels from lightning strikes Protects solar panels from power outages Protects other electrical equipment from surges and spikes in voltage Package includes: 1 x TOMZN TZG40-PV 1200VDC Surge Protective Device 1 x Mounting bracket 1 x Instruction manual