Otto Illuminated Push Button Switch, Green LED, 20 mm Cutout, SPDT, IP68, 28 V DC, 115 V AC, Momentary, Dome LP9-11131F25

The Otto LP9-11131F25 is an industrial-grade illuminated push button switch engineered for demanding applications requiring reliability, clear indication, and robust protection. This model comes equipped with a vivid green LED indicator and a dome-style momentary actuator, delivering excellent tactile feedback whenever the button is pressed. Its design makes it suitable for installations in panels, control grips, and instrumentation where both durability and visibility are key priorities.

This push button switch fits a standard 20 mm panel cutout and offers a single-pole double-throw (SPDT) contact configuration, enhancing versatility for a broad range of switching tasks. With a maximum contact rating of 5 amps at 28 V DC or 115 V AC, the switch is well-suited to low and medium-power control circuits found in automation, machine panels, marine instrumentation, and other industrial or commercial environments.

The actuation mechanism is momentary, meaning the switch returns to its normal position after being pressed, which is ideal for control start-stop circuits or user-prompted events. The green LED integrated into the switch provides immediate visual confirmation of activation or status, ensuring operators can quickly and accurately interpret system state at a glance.

Robust IP68 ingress protection enables installation in harsh, wet, or dusty settings without loss of function, and a broad operating temperature range of -55°C to 85°C ensures year-round reliability across varied climates. The short behind-panel depth is perfect for space-constrained designs while maintaining high-grade impact and vibration resistance typical of Otto's P9 series.

Solder terminals simplify wiring and provide solid electrical connections. The switch conforms to RoHS standards, supporting environmental safety and compliance with global regulations. This model is used extensively in industrial automation, building management systems, equipment control panels, robotics, transportation, and outdoor machinery controls requiring a compact, weather-resistant illuminated switch solution.

For engineers and panel builders, the Otto LP9-11131F25 provides a resilient, high-visibility switching component uniquely suited for applications demanding both status indication and rugged performance.

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