A Class 2 circuit can have a maximum voltage of which of the following?

A Class 2 circuit is defined by specific limitations set forth in electrical code standards, primarily to ensure safety while providing flexibility in applications. The correct choice encompasses various voltage ranges and current specifications defined for Class 2 circuits.

Class 2 circuits are designed to operate at a maximum voltage of 60 volts (V) AC or 100 volts (V) DC. The intent behind this regulation is to minimize shock hazards while allowing for safe operation in a diverse range of low voltage systems.

The first choice indicates a limit of 20V and 5A, which can also fall under the definition of a Class 2 circuit when considering power limits (less than 100VA) that ensure safety against shock and fire hazards.

The second choice, specifying a voltage range from 31V to 150V, would not typically be categorized under Class 2 due to exceeding the maximum allowable voltage of 60V AC or 100V DC, but it emphasizes the importance of understanding maximums within regulated thresholds.

The third choice indicates a range of 21V to 30V and a current of 3.3A, which is also compliant with Class 2 specifications and remains within the acceptable power limits.

Therefore, the