IEC 60529 Protection Rating
IP55 Rating
IP55 provides level 5 protection against solids and level 5 protection against liquids, as defined by IEC 60529.
5First digit: Solid protection
Dust-protected. Limited ingress of dust permitted, not enough to interfere with operation
Test
Dust chamber, talcum powder
8 hours in dust chamber with pressure differential; no harmful deposits
5Second digit: Liquid protection
Protection against water jets (6.3 mm nozzle) from any direction
Test method
6.3 mm nozzle at 3 meters distance
12.5 liters/min at 30 kPa for 3+ minutes
Common products rated IP55
- Industrial motors
- control stations in process plants
- outdoor junction boxes
How IP55 compares
| Rating | Solids | Liquids |
|---|---|---|
| IP54 | Dust-protected. Limited ingress of dust permitted, not enough to interfere with operation | Protection against splashing water from any direction |
| IP55 | Dust-protected. Limited ingress of dust permitted, not enough to interfere with operation | Protection against water jets (6.3 mm nozzle) from any direction |
| IP56 | Dust-protected. Limited ingress of dust permitted, not enough to interfere with operation | Protection against powerful water jets (12.5 mm nozzle) from any direction |
Validate IP ratings across your catalog
Rastro extracts IP ratings from datasheets, validates the format against IEC 60529, and writes clean structured attributes back into your product data.