STPT23-20K320V-2PM Mersen Surge-Trap; SPD Type 2+3; 20kA; Uc320V; 2+0 TNS; 2 Poles; 2 Modules; Pluggable; Remote
STP T23 20 is the series of combined Type 2+3/Class II+III devices for discharging voltage surges while providing a very fine voltage protection level, in accordance with EN/IEC 61643-11. Suitable as the final stage of protection in panels with Type 2 protection devices installed upstream such as STP T2 40 SPDs. These SPDs should be installed as close as possible to the equipment being protected.