The Banner K50LGRYB4PQ is a robust multicolour indicator designed for clear, reliable visual communication in industrial environments. Part of Banner’s highly trusted K50 family, this model combines four-colour LED indication, rugged protection ratings, and simple discrete control, making it ideal for machine status monitoring, operator guidance, and lean manufacturing systems.

Equipped with four distinct LED colours—green, red, yellow, and blue—the K50LGRYB4PQ provides flexible and intuitive signalling for multiple machine or process conditions. Green can signify normal operation, red can indicate faults or stop conditions, yellow can serve as a warning or transitional signal, and blue can act as an operator prompt or a special status. This versatility allows a single indicator to replace multiple devices, reducing installation complexity while ensuring operators receive quick and unambiguous visual feedback. Its bright, evenly diffused LEDs maintain high visibility in diverse lighting conditions, including brightly lit production floors and dimmer workspaces.

The device is engineered for rugged durability, carrying both IP67 and IP69K environmental protection ratings. These ratings ensure complete protection against dust ingress and resistance to water, including high-pressure, high-temperature washdowns. This makes the K50LGRYB4PQ well-suited for industries with stringent cleaning requirements, such as food and beverage, pharmaceuticals, and packaging. Its sturdy housing also resists vibration, shock, and everyday wear, ensuring dependable performance in challenging industrial environments.

Control flexibility is provided through its discrete input configuration, allowing direct management of LED colour states from programmable logic controllers (PLCs), switches, or relays. This makes it easy to integrate into existing automation systems without the complexity of networked communications. Users can assign colours to specific workflows, machine states, or operator actions, tailoring the device to support unique production or monitoring needs.

The wide supply voltage range of 18–30 V DC ensures broad compatibility with standard industrial power systems. Installation is simple thanks to Banner’s standard K50 housing format and durable electrical design, which guarantees stable performance across a variety of conditions. Energy-efficient LED technology further supports low-maintenance operation, offering long service life while reducing operating costs.

The K50LGRYB4PQ is ideal for applications such as assembly line guidance, machine status indication, pick-to-light systems, warehouse signalling, and quality inspection processes. On production lines, it can provide clear, colour-coded operator feedback; in packaging, it helps signal system readiness or errors; and in logistics, it can manage workflows by visually guiding operators.

In summary, the Banner K50LGRYB4PQ combines four-colour LED indication, IP67/IP69K rugged protection, discrete control, and wide DC supply compatibility into one powerful, compact device. Engineered for clarity, resilience, and flexibility, it is an excellent solution for industries seeking to enhance communication, efficiency, and reliability in demanding automation environments.