The NEMA or industry standard symbol for a double-break, momentary-contact, single-circuit, normally open pushbutton switch is shown at which location?

The NEMA standard symbol for a double-break, momentary-contact, single-circuit, normally open pushbutton switch is designated to provide a clear representation of the switch's function and characteristics. The symbol includes specific details that represent its operation—namely, that it is a momentary switch (activating only when pressed) and is in a normally open state (allowing current to flow only when engaged).

In the context of electrical diagrams and standards, symbols are often categorized into different classes or locations to aid in identification during setup or troubleshooting. For this particular switch, the designation you mentioned aligns with the conventions established in standardized materials, ensuring that professionals in the field can quickly and accurately identify the component.

Choosing the correct location is essential as it reflects a common understanding in the industry, allowing for consistent application and installation practices. Knowing that Location IV corresponds to the symbol for the specified pushbutton switch ensures clarity and accuracy in practical scenarios. It enables electricians and contractors to refer to standardized symbols for effective communication and adherence to safety and operational protocols.