For use with the base element VSPC BASE 1CL FG for a single floating ground-driven paired cable, utilize a surge protection plug.
For use in intrinsically safe Ex IA circuits, a two-stage protection circuit with coarse protection, decoupling resistors, fine protection between the signal wires, and coarse common mode voltage protection to earth is provided.
The rated voltage and switching type are used to mechanically identify the plug from the base element.
Optical identification of the protected plug according to voltage level and protected switching type.
A counter-profile and coding pin-equipped protected plug for the base element.