signalleuchte

Signalleuchte, or signal lamp, is a visual indicator used in electrical and signaling systems to convey a status or condition. They are found on control panels, machinery, process lines, and transportation signaling equipment, designed for quick, at-a-glance readability in various lighting conditions.

Construction and operation: A Signalleuchte typically consists of a light source (LEDs are common, though incandescent lamps are still used), a lens or diffuser, and a protective housing with mounting and electrical terminals. It is driven by relays, sensors, or control electronics and is designed to be bright enough to be seen at the desired viewing angle.

Colors and meanings: Color conventions vary by industry and region. Common practice uses red for stop or fault, green for normal operation or go, yellow for caution, and blue for information or mandatory action in some systems. Some indicators are bi-color or tri-color and may indicate additional states through flashing or steady illumination.

Applications and mounting: Signalleuchten appear on control panels, machine dashboards, distribution boards, and signaling installations. They may be flush- or surface-mounted, or mounted on rails in larger assemblies. Environmental protection ratings, viewing angle, and durability influence selection.

Electrical and selection considerations: Voltage can range from DC low-voltage to mains AC; LED variants offer longer life and lower power consumption. When selecting a Signalleuchte, engineers consider visibility, ambient light, duty cycle, and conformity with applicable electrical standards and safety requirements.