APC's SurgeArrest Panelmount SPDs provide protection for your commercial facility, industrial building and data center from externally generated power surges and spikes - even lightning. Designed for nearly all applications and voltages, these panelmount SPDs safeguard against damaging transients at the electrical service entrance of your building and branch panels. When used in conjunction with other APC power protection products, you will enjoy a complete power protection solution for your computers, data centers and sensitive electronic components.