Surge Protector(SPD) 20kA 4Pole 275V Dinrail

The Surge Protective Device (SPD) is a component of the electrical installation protection system. This device connects in parallel to the power supply circuit of the loads that it has to protect. The surge protective device redirects electrical currents like nominal discharge current from a short circuit.

• Number of Ports:One port
• Type of network systems:TN-S,TN-C-S,IT
• SPD design topology: Voltage limiting (L-PE,N-PE)
• SPD classified for test class: II
• Compound mode(According to the need of protection mode in the system): 1P(1+0),2P(1+1&2+0),3P(2+1&3+0),4P(3+1&4+0)
• Nominal discharge current ln:10kA
• maximum discharge current Imax：20kA
• Location：indoor
• Mounting method:Fixed
• SPD Disconnector:InternalProtection functions：Thermal
• Maximum continuous operating voltage UC (one value for each mode of protection)：275V
• Voltage protection level UP (one value for each mode of protection)：1.0kV
• Short circuit current rating ISCCR:800A
• Ambient Temperature: -40℃-+80℃
• Relative Humidity：5%RH~95%RH
• Connection:Screw terminal:4 to 25mm2,by busbar
• Remote signalling of disconnection:optional
• Protection Index IP：IP20