If a switch is rated in "VA", what type of duty rating does it indicate?

In electrical terminology, when a switch is rated in "VA" (volt-amperes), it typically indicates a pilot duty rating. This rating is associated with switches designed to control devices that have a relatively low power draw, such as solenoids, relays, or small loads that do not require heavy-duty switching.

Pilot duty switches are often utilized in control circuits where they activate larger loads indirectly. The "VA" rating provides a measure of the apparent power that the switch can handle effectively, ensuring that it is suitable for the intended application without overheating or failing. The pilot duty rating ensures that the switch can operate safely within its specified limits while controlling devices that might draw a different form of load.

Understanding this rating is critical for ensuring that the correct switch type is utilized in electrical installations, as using an inappropriate switch may lead to equipment failure or safety hazards.