ProBloc T1SG

The ProBloc T1SG products utilize an innovative single-cell spark gap technology (ScSG) developed by Raycap to meet the increasingly demanding power network conditions.



  • Type 1 SPD with a 12.5kA Iimp rating
  • 50kA total lightning capacity for systems with LPL III & LPL IV levels
  • Inherent stability with a self-regulated operation of the triggering mechanism
  • Controls and limits the follow currents to negligible values due to an inverted-plate design of the arc-extinguishing chamber
  • Leakage current free design