Square D 9001SK1L1R Illuminated Red Push Button

Square D by Schneider Electric Harmony 9001SK1L1R is a 30 mm, full-guard illuminated pushbutton operator with a red lens cap and plastic bezel that mounts in a standard 30 mm panel opening. It features a two‑circuit contact arrangement (1 normally open, 1 normally closed) and includes a built‑in lamp for illumination at 110–120 VAC (50/60 Hz). The device is IP66 and NEMA 4/4X rated for dust, water, and corrosion resistance, making it suitable for rugged industrial environments. Part of the Harmony 9001SK family, this illuminated head pairs with SK‑series light modules and contact blocks for flexible control panel configurations, and it is designed for panel mounting with a flush, full‑guard construction. Typical applications include machine start/stop signaling, interlocks, and status indication on automation panels in manufacturing, packaging, and processing facilities.