The invention relates to an improved surge protection device comprising a fast acting, self-restoring circuit breaker, preferably, along with surge arrestor/absorber to improve the protection and availability of the equipment which is in use with power source affected with surges/spikes which otherwise would have operated the spike/surge arrestor in-built in the equipment that would have led to its non-availability, and protection for equipment that may or may not be having in-built overcurrent, surge protection devices.