PCB mounting, shaft operated rotary switches with terminal pins on a 0.1in pitch, that may also be panel mounted using the threaded M10 mounting bush provided
Shaft and body moulded in self-extinguishing thermoplastic
Panel cut-out: Ø10.5mm
Shaft: Ø6mm
Silver-plated brass, break-before-make action contacts, with 36° operating angle between positions for the BCD type and 30° operating angle between positions for the other types

Numbers refer to input/output position. Lower case letters refer to pole no. e.g. b4 = 4th position of 2nd pole. Common position denoted by C. No connection denoted by NO. With the BCD switch at least one complementary pair of commons (C1, C2 or C3) must be joined for correct operation. For greatest reliability join all commons together where possible.