QH22028GC

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Panel Indicators and Pilot Lights

The QH22028GC is a panel indicator light and pilot light, commonly used in industrial, commercial, and residential applications. It is a ubiquitous device, found in many places from factories, to buildings, to homes. Its purpose is to provide visual notification of an operating condition of a machine, appliance, or system.

Application Field

QH22028GC panel indicators and pilot lights are typically used in process monitoring, for warning or standby level and lockout/tagout applications. It can also be used in process control circuits, such as for indicating the motor start/stop/run condition. This panel indicator is also used to indicate system pressure, temperature, level, or other operating conditions. Additionally, it can be used to indicate fault conditions, such as when a circuit breaker, fuse, or overload device trips. It can also be used for simplified process monitoring for small systems.

Working Principle

The QH22028GC panel indicator operates on 24 VDC or AC power. When the panel indicator is connected to a power source, and the source has a closed circuit, the pilot light will turn on, indicating a system operating condition. The pilot light also has a built-in resistor that enables the light to be connected to power sources without additional load resistors, making it quick and easy to install. The panel indicator is also available in either momentary or maintained contact configurations.

The panel indicator also has a dual function feature, allowing it to act alternately as both a blinking pilot light and a steady indicator light. This dual function feature can be used to indicate alternating operating conditions, or to provide a warning light with an alternate steady light. The blinking and steady lights can also help operators to differentiate between system conditions.

The QH22028GC panel indicator can be used in a variety of applications, from process monitoring to fault notifications. Its simple design and ease of installation make it a popular choice for many types of applications.

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