Cartridge heaters not only withstand the rated voltage during long-term operation but also handle transient over voltages that may occur during the operation, which often exceed the normal operating voltage. It is crucial that the insulation of the cartridge heater meet the required withstand voltage standards to ensure safe and reliable operation.
When it comes to selecting or customizing cartridge heating elements, it is crucial to consider factors such as the heating medium, operating temperature, key parameters (of the heater), working environment, and fixation method.