Citel DS132VGS-230/G SPD, type 1+2+3, AC, 1phase, 20kA Part number 571572

This surge protection device combines type 1, 2 and 3 protection in a single unit for single-phase AC systems, providing a discharge capacity of 20kA. It is designed for installation in control panels and distribution boards to protect downstream equipment from transient overvoltages arising from lightning strikes or switching events. The combined-stage design allows it to serve as the primary surge arrester at the point of supply while also filtering finer transients closer to sensitive loads.