The IP rating consists of two digits indicating specific characteristics:

• First digit: protection against the ingress of solids (e.g. dust) and protection of persons againstdirect access to hazardous parts.
• Second digit: protection against the ingress of liquids (such as water or moisture).
• Added letter: indicates protection of persons against access to hazardous parts.

For example:

an electrical enclosure with IP65 rating offers:

• complete protection against dust (first digit 6)
• protection against water jets from any direction (second digit 5).

IP20 Grade

• Protection against solids: Solid objects > 12.5 mm.
• Protection against liquids: No protection against liquids.

Grade IP54

• Protection against solids: Dust in non-damaging quantities.
• Protection against liquids : Splashes of water from any direction.

Grade IP65

• Protection against solids: Complete protection against dust.
• Protection against liquids : Water jets from any direction.

IP67 grade

• Protection against solids: Full protection against dust.
• Protection against liquids: Temporary immersion up to 1 metre.

Grade IP69K

• Protection against solids: Full protection against dust.
• Protection against liquids: High pressure and temperature cleaning.

This classification makes it easy to compare the different options available.

La scelta di un quadro elettrico con il corretto grado di protezione IP garantisce:

1. Durata e sicurezza
   Proteggendo i componenti interni da polvere e umidità si riduce il rischio di guasti e incidenti.
2. Adattabilità alle condizioni ambientali
   Ogni ambiente presenta specifiche criticità; un quadro IP20, ad esempio, può essere adatto per ambienti interni, mentre uno IP65 è ideale per impieghi in ambienti industriali con esposizione a getti d'acqua.
3. Conformità normativa:
   I macchinari industriali devono rispettare le normative di sicurezza internazionali.

Choosing an electrical enclosure with the correct IP protection rating guarantees:

1. Durability and safety
   Protecting internal components from dust and moisture reduces the risk of failures and accidents.
2. Adaptability to environmental conditions
   Each environment has specific criticalities; an IP20 switchboard, for example, may be suitable for indoor use, while an IP65 switchboard is ideal for use in industrial environments with exposure to water jets.
3. Regulatory compliance
   Industrial machinery must comply with international safety regulations.

We have analysed here the different certifications required for the electrical enclosure sector >​