What are the standard abbreviations for an auxiliary switch and backlighted pushbutton?

The correct answer identifies standard abbreviations commonly used in the electrical field for specific components. An auxiliary switch, which is often used to add supplementary functionality alongside primary controls, is typically abbreviated as "XS." This designation helps differentiate it from other types of switches and reflects industry standards.

Additionally, backlighted pushbuttons are referenced as "BLPB." This abbreviation clearly indicates that the pushbutton includes a backlight feature, making it easier for operators to see and use in low-light conditions.

These abbreviations facilitate clear communication among electricians and engineers, ensuring that everyone understands the specific components being referenced without ambiguity. Using standardized abbreviations ensures consistency in documentation and design schematics, which is essential for efficient troubleshooting and maintenance.