Carlo Gavazzi's DSF surge arrestors protect combiner boxes in photovoltaic systems
Carlo Gavazzi
DSF surge arrestors
Carlo Gavazzi has introduced surge protection devices that are designed to safeguard the quality and lifespan of solar energy components.
The DSF surge arrestors — which provide back-up protection without internal fuses — are claimed to ensure transient overvoltage protection for combiner boxes in photovoltaic (PV) systems.
According to the company, built-in technology caters for both long-duration temporary overvoltage and instantaneous surges lasting microseconds.
Product specifications
• Compliant with new and emerging standards for DC-side surge protection in PV systems, in particular the French UTE C 61-740-51 and EN 50539-11As norms
• Nominal voltage of up to 1,200VDC
• Available in two- or three-pole configurations, providing both differential and common-mode protection
• Provided with CE marks as well as UL1449 3rd Edition approval
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