Which statement is true about three-phase power for gate operators?

• A. It is common in residential settings
• B. It cannot be used for gate operators
• C. It is intended for heavy-duty, high horsepower motors and can be 208V, 230V, 460V, or 575V
• D. It is easy to convert from single-phase on-site

Answer: (C)

Three-phase power delivers smoother, more efficient power delivery for motors, with a rotating magnetic field that provides higher starting torque and continuous power. That makes it the best choice for gate operators that require heavy-duty, high horsepower motors. The voltages listed—208V, 230V, 460V, and 575V—are standard three-phase supplies found in commercial and industrial settings, not typical residential service which is usually single-phase. While on-site conversion from single-phase is possible using converters or VFDs, it’s not always straightforward or universally feasible. So this statement correctly captures the typical use and voltage range for three-phase power in gate operators.