The P2/3TMA 147 is a single-pole single-throw (SPST) 3-position Random Keyswitch with silver-plated solder terminals and self extinguishing glass-filled nylon moulding. The construction of the P2 series is based on moulded packets each containing one or two pairs of contacts, which may be assembled to give multiple switching functions. Normally a maximum of 6 packets may be incorporated. The design is very flexible and allows a lot of variations. The P2 series represent outstanding quality and value for a wide range of control applications. Contacts are of fine silver on phosphor-bronze spring leaves, operated by a rotary cam.