Key box DBOX12

 Secure box is a patented, innovative product safety device for maintenance works on rail traction power lines and specific on power lines railways inside maintenance workshop;  Interlock with 2 keys for interconnection between the ground blade selector and the insulating rod and interconnection between the insulating rod and the Key Exchange Boxes;  Staff to the shelter of the foil in rest position;  Toll for pole attachment of interlocking device;  Bracket and ring for flag fixing.