2151QA4

Panel Indicators, Pilot Lights

2151QA4 is a commonly used panel indication and backlighting system in industrial settings. This system, with a few minor variations, is used in many industries for the indication of status and warning of potential problems. In this article, we will discuss the application field and working principle of 2151QA4.

Application Field

The application field of 2151QA4 is broad as it can be used for a variety of applications including signal indication, warning signals, small illumination needs, and even control panel lighting. It is often applied in areas with exposure to corrosive environments and other rigorous conditions, such as automotive, medical, pharmaceutical, food & beverage, chemical industries, etc. The 2151QA4 is also highly reliable and safe, making it perfect for situations where failure of machinery or malfunctions could cause serious harm.

Working Principle

The 2151QA4 is powered by a low voltage power source, such as a PB-1 type 24V DC battery, and LED indicators are used as a signal source. These LED indicators are either soldered or clamped to the terminal board, depending on the model, for connection to the power and logic supplies. The LED signals are then used to indicate the status of the device, whether it is working normally, detecting a fault or indicating an overcurrent. The brightness of the LED can also be controlled depending on the model, allowing for dimmable or blinking signals when necessary to alert users of malfunctions or changes. The 2151QA4 can also be used with a variety of control systems, such as PLCs, computers, and CNCs.

In conclusion, the 2151QA4 is a highly reliable and versatile indication and backlighting system. It is easily integrated into any system and is widely used in industrial applications that require reliable and safe signal indication. This system is also relatively low cost, making it a great choice for any application that requires signal indication or backlighting.