The protection ratings of transformers are typically determined according to the standards of the International Electrotechnical Commission (IEC). Here are some common transformer protection ratings and their meanings:
IP20: A transformer with an IP20 protection rating provides protection against solid objects larger than 12.5 mm in diameter when installed in a fixed position and does not have specific requirements for protection against liquids.
IP23: Transformers rated as IP23 are suitable for outdoor use and can resist vertically falling rain. They also provide protection against contact with electrical components.
IP44: Transformers with an IP44 rating offer a certain degree of protection against solid objects larger than 1 mm in diameter and water splashes, making them suitable for indoor moist environments.
IP54: Transformers with an IP54 rating provide higher protection against the ingress of solid objects and water, making them suitable for outdoor environments where they may be exposed to wind and rain.
IP65: Transformers rated as IP65 offer high protection against dust and water jets, making them suitable for harsh industrial environments.
IP67: A transformer with an IP67 rating provides complete protection against dust ingress and can withstand immersion in water for a short period without damage.
These protection ratings help determine the applicable environment and protective capabilities of transformers, ensuring that they can operate effectively and provide the required power conversion functions under various conditions.
