S400LV-1-N
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Type 3 overvoltage protection, rated voltage: 24 V AC/DC
Surge protection for single-phase, TN-S / TT ( SPD Class III , Type 3 ).S400HV-2
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Überspannungsschutz 230 Vac, Typ 2 mit 3 Stromleitern (L, N, PE)
Surge protection for power supplies ( SPD Class II , Type 2 ) , for 3 conductors..S400LV
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