Schneider Electric's Square D Harmony 9001SK11J1R is a 30 mm, illuminated two‑position maintained selector switch with a red operator knob, designed for panel mounting in control enclosures. This model is the switch operator only (no contact blocks), intended to be paired with compatible contact blocks to complete the assembly in the 9001K/SK/KX family. It is rated for 110–120 VAC operation (50/60 Hz) and, as an illuminated variant, provides visibility of the selected state in low‑light environments.
