Lightning Surge Protector, Designed for Photovoltaic Systems, Direct Current Use, 0-500 Vdc

When an atmospheric discharge occurs, the suppressor will receive the damage; when the discharge is direct and of greater intensity than indicated in the technical data sheet and has sufficient heat and accumulated tension, the suppressor will open a hole of approximately one inch in the bottom of the canister and expel hot silicon and pieces of plastic, performing its maximum blocking function and protecting the circuit. Install the canister outside the cabinet as shown in the images.

Installation in an off-grid system is done at the charge controller, on the same terminals where the photovoltaic module is connected.

In a grid-tie system, it is installed at the circuit breaker where the modules arrive at the inverter, respecting the colors and polarities as in the previous image; it can be omitted for microinverters.

For alternating current, another suppressor can be seen (specifically for alternating current), model LA302R