NL67WL3A

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Panel Indicators and Pilot Lights is a widely used electrical device for providing the operator with a visual feedback for machine states. The NL67WL3A is an example of this type of device, and it operates by providing an illuminated indicator or pilot when a relay closes. It is designed to work with standard AC/DC voltages and can operate at temperatures up to 60°C.

Description

The NL67WL3A is a small panel indicator with an LED lamp fitted into a black plastic case with a single terminal. It is round, with a diameter of 22mm, and features a transparent front, providing a visible signal when it is activated. The lamp itself is powered by a voltage range of between 11-18 Volt AC/DC. It features an IP42 protection rating against dust and water and will operate at temperatures up to 60°C. This makes it suitable for a wide range of industrial and commercial settings.

Usage

The primary use of the NL67WL3A is to provide a visual indication of a relay closure. It works by connecting the device to the normally open (NO) terminals of a relay. When the relay is operated, the contacts close, and current will be supplied to the indicator. The LED lamp will then be illuminated, providing visible feedback to the operator that the machine state has been changed. This type of indication is often used on machinery such as conveyor belts or packaging machines to show their status or to warn of a fault in the system.

Installation

The NL67WL3A is a straightforward device to install. It features a single terminal for connection to the NO relay contacts and is mechanically secured to the panel via two mounting screws at the rear of the device. The LED lamp has an operating life of around 25,000 hours, so it requires minimal maintenance. The device is also quick and simple to replace in the event of a failure.

Conclusion

The NL67WL3A is an economical and reliable device for providing a visible indication when a relay is operated. It is well suited to a wide range of environments, including industrial and commercial settings, due to its robust construction and ability to operate at temperatures up to 60°C. It is relatively simple to install, and its LED lamp has a long operating life, making it an ideal choice for providing visual feedback to an operator.

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