Standards & Protection
IP Protection Classes
IP stands for "Ingress Protection." The two-digit classification system per IEC 60529 / DIN EN 60529 indicates how well an electrical or electronic device is protected against the ingress of solid foreign objects (first digit) and water (second digit).
Structure of the IP Code
| IP Rating | Solid Protection | Water Protection | Typical Application |
|---|---|---|---|
| IP40 | ≥ 1 mm | No protection | Dry indoor spaces |
| IP54 | Dust-protected | Splash water from all directions | Industrial environment |
| IP65 | Fully dust-tight | Water jet from all directions | Production environment |
| IP67 | Fully dust-tight | Immersion up to 1 m/30 min | Food industry |
| IP69K | Fully dust-tight | High-pressure cleaning | Hygienic applications |
Practical Relevance
When selecting drive components such as motors, gearboxes, and linear actuators, the IP rating must be matched to the ambient conditions. In food, chemical, and pharmaceutical industries, IP65 or higher is typically required. For outdoor applications, a minimum of IP54 is recommended. An insufficient protection rating leads to short circuits, corrosion, and premature failure; an oversized rating causes unnecessary costs.