Which of the following is a heavy-duty AC push-button rating?

• A. AC 3 Amps, 240 Volts
• B. AC 1.5 Amps, 480 Volts
• C. DC 1.1 Amps, 120 Volts
• D. AC 6 Amps, 120 Volts

Answer: (D)

Heavy-duty AC push-buttons are defined by how much current they can safely switch on an AC circuit. The ratings reflect the current capacity; a higher current means the device can handle larger, tougher loads typical in industrial settings. The DC option isn’t the same category, since DC and AC have different arcing and contact wear considerations, so it doesn’t count toward an AC heavy-duty rating. Among the AC options, the one described with the strongest current capacity on AC shows it’s built for heavier use. That makes it the best choice for a heavy-duty AC push-button rating.