Short Description:
SPD series surge prolective device(hereinatter called SPD)is suitably used in the1t, TT,TN-C,TN-S,TN-CS and Low-vollage AC power distribution system, ratedvoltage up to 380V,to protect from direct and indirect lightning impulse and othertransient over vollage,AS per the conditions ofEC61643-1:1998-02siandard,Class l surge protective device,it is calagory D surge protective device.SPD has two prolection modes:MC and MD,Products is in comoliance wiihGB18802 1and lE061643-2 siandards.
Procuct introduction
SPD series surge prolective device(hereinatter called SPD)is suitably used in the1t, TT,TN-C,TN-S,TN-CS and Low-vollage AC power distribution system, ratedvoltage up to 380V,to protect from direct and indirect lightning impulse and othertransient over vollage,AS per the conditions ofEC61643-1:1998-02siandard,Class l surge protective device,it is calagory D surge protective device.SPD has two prolection modes:MC and MD,Products is in comoliance wiihGB18802 1and lE061643-2 siandards.
Structure&Principle
✦SPD as only one side of terminals,able to preventfrom being electric touching,indoor fixedly mounted,limiting voltage.
✦SPD has built-in disconnector,when SPD is incaliddue to overheating or breakdown,the disconnectorcan automatically separate SPD from the networkmeamwhile send an indication signal.the visiblewndow show white color in normal service,if to beisparated irom nrtwork,it will show red coior
✦1P+N,2P+N,3P+N SPD consist of 1P.2P.3P SPDand NPE neutral and earthing protection modulesused in the power supply system of TT,TN-S andetc.