Which of the following describes a Class 1 Circuit?

A Class 1 circuit is defined in the context of electrical wiring and safety standards, particularly referencing low voltage applications. It is characterized by a maximum voltage of 600 volts AC. This makes it suitable for various applications, including remote control circuits, where safety and low-power requirements are paramount.

The selection of a remote control circuit not exceeding 600 VAC accurately aligns with the definition of a Class 1 circuit because it operates within the voltage limits set for this classification.

Understanding Class 1 circuits is essential for designing systems that need to comply with electrical codes and safety regulations. This knowledge ensures that the design will prevent electrical hazards and maintain effective operation within specified voltage ranges.

The other options do not fit the description of a Class 1 circuit as they either exceed the voltage limit or pertain to different types of circuits not categorized under Class 1.