A multiwire branch circuit consists of which of the following?

A multiwire branch circuit is characterized by the use of two or more conductors that share a single feeder or branch circuit. This arrangement typically includes two or more hot conductors that are connected to different phases of a multi-phase system, allowing them to work together effectively to supply higher voltages while maximizing the use of the circuit capacity.

The inclusion of a common circuit breaker for the multiwire branch circuit is essential for safety and functionality. This circuit breaker protects all the associated conductors simultaneously, offering a means to disconnect power effectively in case of an overload or fault.

Regarding high voltage wires, while multiwire circuits may operate at higher voltages depending on the application and design, the term "high voltage" can be context-dependent. In standard residential and commercial applications, the wires in multiwire branch circuits typically operate at nominal system voltages, which could be considered high in specific contexts relative to ground. Thus, the presence of two conductor wires, a common circuit breaker, and the potential for high voltage use collectively reinforce the designation of a multiwire branch circuit.

Since all these components play a crucial role in defining a multiwire branch circuit, the conclusion that all of these features are included in such a circuit is accurate.