The AML21GBA2AA is a non-lighted electronic control pushbutton switch from the AML21 series. It is configured with a square housing featuring a black, full guard bezel for protection against accidental operation. This switch provides momentary action with a 1-pole, double-throw (SPDT) circuit and utilizes silver contacts. For connectivity, it is equipped with .110 x .020 inch terminals suitable for either solder or quick-connect applications. As part of the UL recognized and CSA certified AML series, this switch is a reliable component for various control panel applications where a non-illuminated, momentary input is required.