[Towertalk] Rotator and Antenna Switch Protection Question

[Wendell Wyly W5FL]

Does anyone know what device is used for Rotator Wire Protection and can it
be purchased from Mouser or other electronic supply?  Since it is a shunt
device, it must be a leaded device that can be homebrewed into my switch
boxes for switch lines and into a box at the bottom of the tower  to shunt
the rotator lines.  My Rotator is a CDE type with brake and no voltages over
26 volts.