The SURGYS G51-PV surge arrester is designed to provide reliable protection for photovoltaic power supply systems against transient overvoltages caused by lightning strikes. It ensures enhanced safety and system stability for PV installations operating in demanding environments. The device complies with the test standards UTE C 61-740-51 and EN 50-539-11, as well as installation requirements specified in UTE C 15-712-1, ensuring adherence to recognized safety and performance guidelines.