According to the National Electric Code, what is the maximum amperage for electric pool water heaters' heating elements to be protected?

The maximum amperage for electric pool water heaters' heating elements that must be protected, according to the National Electric Code, is 60 amperes. This standard is established to ensure safety in the electrical systems associated with pool heaters.

Protection limits are important because they help prevent overheating and potential fire hazards that could occur if the electrical current exceeds the safe operating level of the equipment. By adhering to this 60-amp limit, pool contractors can ensure the proper sizing of breakers and fuses to accompany the heating element, thus maintaining both efficiency and safety in the pool's electrical system.

Following these guidelines also ensures compliance with regulations, which is crucial for legal and insurance purposes. Properly designed and installed systems not only enhance safety but also promote better operational longevity of the equipment.