Citel DS240S-230/G SPD, compact, type 2, 1-phase, 20kAProduct Overview The DS240S 230 G is a compact Type 2 (or Type 3) AC surge protector designed to protect single phase networks at the main switchboard level in 230V applications. This modular SPD features hybrid MOV+GSG (Metal Oxide Varistor + Gas filled Spark Gap) technology with integrated thermal disconnectors, providing both common mode and differential mode protection with pluggable modules, a fixed base for easy maintenance, and built in remote