Type 2 SPD (1 varistor + 1 GDT) Combination of varistor and replaceable spark gap modules Available with contact for remote signaling of varistor status
SPD Type 2 (3 varistors) Replaceable modules, 4 poles, Available with contact for remote varistor status signaling
Type 2 SPD (3 varistors) Replaceable modules, 3 poles Visual and remote indication of varistor status
SPD Type 2 (3 varistors + GDT) Combination of varistor and replaceable spark gap modules, Available with contact for remote signaling of varistor status
