Editing RAFI RS 76 C (section)

==Design==
RS 76 C switches use a Hall sensor IC, actuated using a small magnet; the magnet is 2 mm wide, 3 mm tall and 1 mm deep. The magnet fits into a pocket within the slider. The IC provides the switch with four legs; an additional dummy leg is placed at the opposite end of the switch simply to help secure the switch. The momentary switches are damped on the downstroke by a rubber ring placed around the slider guide shaft; this is omitted from the illuminated and latching versions as it would partially block the holes in the base for the LEDs.

The momentary versions typically use yellow sliders, although in the 2016 catalogue they are shown with the same colourless slider as used by the illuminated and latching versions. The [[Siemens Teleperm ST215]] does indeed uses colourless sliders. An anomalous version with a cream slider is depicted below.

The RAFI Electromechanical Components 2001 catalogue provides part numbers for IP 40 and IP 65–rated switches; at present, only IP 40–rated switches are listed in RAFI catalogues. The separate part numbers for different LED colours are also no longer listed.

RS 76 C should not be confused with low-profile [[ITW magnetic valve]] switches, which are also open-top and use a very similar keycap mount.