The SPD2-480-4P0-R from Littelfuse is a Surge Protective Device that is ideal for solar string box and inverter applications. It has an input voltage (AC) of up to 480 V. This surge suppressor offers protection from transient over-voltage events that last in the order of micro-seconds, which helps in resolving costly damage and downtime. It guarantees a low-residual voltage during high-energy surge events and a higher discharge current. This surge protection device has improved panel design flexibility with reduced number of components and offers easy maintenance. It also has a visual life indicator for monitoring the replacement status and is equipped with thermal protection to prevent overheating-related damages. This IP20-rated surge suppressor is available in a DIN rail-mount package that measures 90.7 x 53.8 x 66.1 mm.