LSA Plus Module Mini Protection unit or Protector
lSA protection unit is designed to protect personnel and equipment from indirect lightning strikes, electro-magnetic disturbances as well as short-circuit conditions between different networks. The plugs can be fitted in LSA-PLUS or LSA PROFIL Disconnection or Switching Modules. The protection comprises a 3-pole Gas Discharge Tube (GDT), Fail-safe contact as well as reversible current protection components (Type GB..A2, VG..A2 with Polyswitch; GB..A4 and A5 with PTC; EB with standard fuse; DA with no current protection components). When choosing protection it is important to note that the operating voltage and current must not exceed the values quoted for the components. Operation of the Fail-safe is irreversible. When, due to an extreme overload condition, the Failsafe operates, thereby routing the disturbance to earth, the protection plug must be changed out. Description Installation After wiring the LSA-PLUS or LSA PROFIL module, an earth bar is fitted to the cable side (normally, disturbances come from the network/cable side) of the module thus providing a low ohmic connection to earth. The plug is inserted into the module so that the groove on the plug mates with the tongue of the earth bar.