Surge-Trap® Monobloc STMT1 Series - 50kA

STM T1 50 is the most robust series of single pole Type 1/Class I lightning current arresters, able to discharge energy (current) from a direct lightning strike (10/350µs) on an external lightning protection system (LPS) or overhead supplies, in accordance with EN/IEC 61643-11. Suitable as the first step of protection in incoming power supply panels and areas with high exposure to lightning strikes, fitted with an external lightning protection system.

• Lightning impulse current (10/350μs): 50kA
• Follow current quenching capacity (Ifi): 50kA
• Leakage current free (LCF)
• Multi-discharge technology
• Single pole devices for TNS, TNC, IT and TT earthing systems
• Un(L-N/L-L): 120/208V, 230/400V, 277/480V, 400/690V
• DIN-rail mountable, monobloc format
• Back-up fuse: 500 A gG