The 51A22-01-2-08N is a single-deck rotary switch from Grayhill's Series 51, featuring a compact 0.5" diameter design with a 22.5° angle of throw and 1 pole configuration supporting up to 8 positions per pole. The switch is rated for 200 mA continuous current and includes solder lug termination with non-shorting contacts, providing reliable electrical switching for PC board assembly applications. It incorporates positive shaft grounding for EMI/RFI shielding and offers optional complete sealing for enhanced protection during PC board cleaning and assembly processes. The switch's small form factor and precise angular positioning make it suitable for instrumentation, control panels, and equipment requiring compact, reliable rotary selection mechanisms.