C91-NWA28H-CAO

Series:	*
Part Status:	Active
Lead Free Status / RoHS Status:	--

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Panel Indicators

"C91-NWA28H-CAO" is a type of panel indicator and pilot light used in many industrial applications. This type of indicator is designed to provide visual feedback regarding a process or status like on/off, normal/abnormal, good/bad, or line-load. Panel indicators are usually red, yellow, or green and constructed with a molded plastic enclosure and a clear, highly visible lens. The indicator also has a series of external connections including a red (positive) and black (negative) power source, two-conductor stranded wire for power in, contact control switch, and a lock nut to secure the panel indicator in place. Panel indicators allow users to easily determine the operating state of a device or system without needing to take apart the enclosure. This simplifies troubleshooting, as the operator can be sure that the panel is functioning properly, and not damaged, before attempting a more detailed inspection.

Working Principle

The working principle of a C91-NWA28H-CAO panel indicator is relatively simple and involves a small electrical circuit. When power is applied to the positive power source, the indicator\'s internal circuit is complete and current will flow through the microcontroller to the LED indicator. The LED\'s bright color will be visible through the enclosure\'s lens and will provide visual feedback regarding the system\'s operating state.For example, when a two-wire system is used, the contact control switch will be connected to the positive power source and the negative (ground) will be connected to the panel itself. When the switch is on, the LED will illuminate in the desired color and stay on until the switch is turned off. Panel indicators are available in a variety of form factors such as side-by-side panel mount, flush mount, recessed mount, and top hat. They are also available with various LED colors to provide the most appropriate visual indication for a given application.

Pilot Lights

Pilot lights are typically used in industrial applications to provide visual feedback regarding system status and process operation. Like panel indicators, they are commonly used in two-wire systems and are available in both surface-mount and flush-mount varieties. The most common colors are red, yellow, and green.The working principle of a pilot light is similar to that of a panel indicator. Power is applied to the positive power source, which transfers current to the LED, and when the switch is turned on, the LED illuminates and provides visual feedback regarding the system\'s operating state.Pilot lights have the added advantage of being able to display multiple colors, depending on the application. For example, a red light may indicate danger, a yellow light may indicate caution, and a green light may indicate a normal operating state.Pilot lights are also available in a variety of form factors such as side-by-side panel mount, flush mount, recessed mount, and top hat. In summary, C91-NWA28H-CAO panel indicators and pilot lights are used in many industrial applications to provide visual feedback regarding system status or process operation. The working principle is relatively simple wehre power is applied to the LED, and when the switch is turned on, the LED will illuminate in the desired color. Panel indicators and pilot lights are available in a number of form factors depending on the application.

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