Surge protect breaker panels and VFD (Variable Frequency Drives), service entrance panels, distribution panels, disconnects, pool panels, gate panels and well pumps indoors and outdoors. Weatherproof rated. Protect electronics from lightning and surge related damage to electronics. The TPX-1S240-F100 breaker panel surge protector will extend the life of electronics and improve electronic reliability. The TPX series is a surge protection option to protect breaker panels from harmful electrical disturbances that could destroy equipment and cause downtime to your systems. Surge protection made simple with Transient Protection Design.