How many sets of overload contacts does the equipment shown have?

To determine the number of sets of overload contacts that the equipment has, it's essential to understand the role of overload contacts in electrical equipment. Overload contacts serve as safety mechanisms that detect and respond to excessive current flow, thereby protecting the connected devices from overheating and potential damage.

In the context of specific equipment, if it is stated that there are zero sets of overload contacts, this would indicate that the equipment is either designed without this safety feature or that the overload protection is handled differently, perhaps through another component or type of protective device. It would be important to reference the equipment's specifications or wiring diagram to confirm the presence or absence of such contacts.

Other potential answers suggest a certain number of sets, indicating that those are options based on different designs of overload protection. However, if the equipment in question is indeed designed without overload contacts, then the correct interpretation is that it has zero sets, validating that answer.