Parameters Electrical Illumination: Integrated illumination (white LED or lamp) — provides visual indication when activated. Contact Blocks: Not included — must be installed separately to provide electrical switching. Control Voltage for Illumination: Determined by the selected lamp/LED module. Rated Insulation & Withstand: Compatible with standard low‑voltage control circuits. Mechanical & Environmental Operator Function: Maintained — the pushbutton stays engaged until manually changed. Operating Temperature: Approximately –25 °C to +70 °C ambient. Storage Temperature: Approx. –40 °C to +85 °C. Mechanical Durability: Designed for a high number of actuation cycles. Protection Ratings: Front Face: High ingress protection when mounted — resistant to dust and water ingress. Terminals: Basic touch protection (IP20) when installed within an enclosure. Physical Dimensions Width: ~29 mm Height: ~29 mm Depth: ~33 mm Panel Cut‑out Diameter: 22 mm standard. Weight: Lightweight, compact pilot‑device design. Typical Applications Human‑Machine Interfaces (HMIs) for machine controls and panels. Status indication and manual control feedback in automation systems. PLC or contactor control circuits requiring maintained action with visual indication. Industrial process and equipment control panels that need illuminated pushbuttons.