What rating do receptacles and cord sets generally have for residential electric clothes dryers?

Receptacles and cord sets for residential electric clothes dryers are typically rated at 30 amperes and designed to operate at 125/250 volts. This rating is necessary because electric dryers require a significant amount of power to generate the heat needed for drying clothes, which is why they have higher amperage and voltage requirements compared to standard household appliances.

The 30 amp rating ensures that the circuit can handle the load without overheating or tripping the breaker, providing a safe environment for operation. The 125/250 voltage capability indicates that these receptacles can accommodate both 120-volt and 240-volt configurations, which is essential as many dryers utilize 240 volts for efficient operation.

In contrast, lower amperage ratings, such as those found in the other options, do not provide sufficient capacity for properly powering a clothes dryer. They are typically suitable for smaller appliances or general-purpose circuits, not the heavy-duty requirements of a dryer.