DIN Rail Mount Surge Arresters protect photovoltaic systems.

Press Release Summary:




Approved per UL 1449 3rd Edition and EN61643-11, DSF-PV Surge Arresters feature Type 2 (Class C) protection from transient over-voltage due to indirect atmospheric discharge and switching actions. Internal varistors are protected against any leakage current that would otherwise damage or cause premature aging when nominal DC voltage is temporarily exceeded. Compliant with EN50539-11 and French standard UTE#C 6-740-5, devices also offer voltage-free contacts for remote status monitoring.



Original Press Release:



Surge Arresters for PV Systems



Buffalo Grove, IL - Carlo Gavazzi is proud to announce the launch of our new DSF-PV Surge Arresters. Compact and DIN rail mounted, these devices protect the long-term investment of photovoltaic (PV) installations and feature Type 2 (Class C) protection from transient over-voltage due to indirect atmospheric discharge and switching actions. Approved per UL 1449 3rd Edition and EN61643-11 (VDE 0675, part 6-11), the DSF is compliant with future norm EN50539-11 and the new French standard UTE#C 6-740-5, which specifically prohibits the use of fuses for mandatory backup protection. Our special internal technology provides for backup protection enabling the DSF Series to be safe in the event of a short circuit, saving cost and space of fusing. Our new DSF Surge Arrester is the solution for combiner box manufacturers and as a replacement for older products.

Significant advances in technology yield a product representing the best-of-the-best in PV surge suppression. Internal varistors are protected against any leakage current that would otherwise damage or cause premature aging when the nominal DC voltage is temporarily exceeded. This condition is likely to occur in the early hours of daylight when the solar panels are cold. A red optical indicator shows the protection status and voltage-free contacts offer remote status monitoring. The removable plug-in cartridges ensure fast and easy maintenance without the removal of any connections.

  • Type 2, Class C according to EN61642-1, UTEC 61-740-51
  • Ready today for future norm EN50539-11
  • Leakage current limit prevents damage even in event of sustained over-voltage
  • New technology protects the varistor in cases of TOV
  • Optical cartridge status indicator
  • Plug-in cartridges makes replacement fast
  • Voltage-free contact for remote monitoring
  • Thermal and dynamic separating device
  • Assembled and ready to install on DIN rail

    The DSF surge arresters are approved UL1449 3rd Edition and carry the CE and RoHS marks, your assurance of high quality and safety. They are available from Carlo Gavazzi's network of sales offices, distributors or www.GavazziOnline.com.

    Questions regarding this press release should be directed to: info@carlogavazzi.com

    CARLO GAVAZZI Inc., 750 Hastings Lane, Buffalo Grove, IL 60089

    Phone: 847.465.6100 Fax: 800.222.2659 Email: Sales@CarloGavazzi.com,

    CARLO GAVAZZI (Canada) Inc., 2660 Meadowvale Blvd., Mississauga, ON L5N 6M6

    Phone: 888.575.2275 Fax: 905.542.2248 Email: Gavazzi@CarloGavazzi.com

    CARLO GAVAZZI Mexico S.A. de C.V., Calle La Montaña no. 18, Fracc. Los Pastores, Naucalpan de Juárez, EDOMEX CP 53340, Phone/Fax: 52.55.5373.7042, Email: MexicoSales@CarloGavazzi.com
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