SPD - Surge protective devices

Our range of surge protection devices (SPDs) offers comprehensive solutions for both DC photovoltaic systems and low-voltage AC distribution networks. The DC models are optimized for photovoltaic applications up to 1000 Vdc, certified according to EN 50539-11, and available in Type 2 and Type 1+2 configurations. The AC models provide effective protection against atmospheric surges in TN-S and TT systems.

Both series integrate high-performance MOV varistors, with the AC versions also including gas discharge tubes (GDT) for enhanced surge dissipation. The modular design simplifies maintenance, while the OCFM integrated disconnection system ensures safe operation at end-of-life. Local status indicators and optional remote signaling, combined with fast DIN rail mounting and IP20-protected terminals, make these SPDs ideal for safe and efficient installations in controlled indoor environments.