Does the plastic electric kettles have overheat protection or boil-dry protection to prevent damage to the heating element?

Most modern plastic electric kettles come equipped with overheat protection and boil-dry protection to safeguard the kettle and its components, particularly the heating element, from damage. 
1. Overheat Protection
Function: Overheat protection is a safety feature designed to prevent the kettle from operating at excessively high temperatures. If the water inside the kettle is allowed to boil for too long or the temperature exceeds a certain threshold, the overheat protection system automatically cuts off power to the heating element.
Typically, a thermal fuse or temperature sensor is integrated into the kettle. If the water has evaporated or the kettle is left on without water, the sensor will detect the temperature rise and trigger the safety mechanism to turn off the heating element before it causes damage.This feature helps protect the kettle from overheating, which can not only damage the heating element but can also pose a fire risk.
2. Boil-Dry Protection
Function: Boil-dry protection is specifically designed to prevent the kettle from operating when there is no water inside, which could otherwise cause the heating element to burn out due to excessive heat.
In a kettle with boil-dry protection, there is typically a water level sensor that detects whether the kettle contains enough water. If the kettle is turned on without sufficient water, the sensor will prevent the heating element from activating. If the water level drops below the minimum required, the kettle will automatically switch off.
Boil-dry protection is a critical safety feature because it not only prevents damage to the heating element but also minimizes the risk of the kettle overheating and potentially causing a fire.
Benefits of These Features:Increased Safety: Both features ensure the kettle won't continue to operate under dangerous conditions, preventing overheating, burnout, or even fire hazards.Longevity of the Kettle: By protecting the heating element from damage, these features help to extend the life span of the kettle.Convenience: These automatic shut-off features provide peace of mind, ensuring the kettle won’t accidentally continue heating if there's no water inside, even if forgotten.
Most plastic electric kettles on the market today are equipped with overheat protection and boil-dry protection, making them safer and more reliable. However, it's always a good idea to check the specifications of a particular model to ensure these features are included, especially for more affordable or basic kettles.