The 51-252.026 is a low-level switching element actuator designed for reliable control in electronic circuits. It features a maintained switching action with a twist-to-unlock release, housed in a raised, round design with a Ø 24.5 mm red mushroom-head. The actuator includes two normally closed (2 NC) contacts with gold contact material, rated for switching loads up to 100 mA at 42 VAC/VDC. Its universal terminals support flexible mounting options, including PCB, soldering, or plug-in connections. With an IP65 front protection rating and a mechanical lifetime of 1 million cycles, this component is suitable for industrial control panels and machinery where durable and reliable low-power switching is required.