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The protection level is also called the IP level. The larger the number, the better the protection performance, and of course the higher the price. The IP (INGRESS PROTECTION) protection level system was drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION) to classify electrical appliances according to their dust and moisture resistance characteristics.
Indication: IP △ ○ (Example: IP 55)
Meaning of the first digit △ (Protection against solids)
Type | Mark | Illustrate |
Unprotected | 0 | Motors without protective devices |
Semi-protected | 1 | Motors that avoid intrusion of objects larger than Φ50 mm |
Protected | 2 | Motors that avoid intrusion of objects larger than Φ12 mm |
Protected | 3 | Motors that avoid intrusion of objects larger than Φ2.5 mm |
Fully enclosed | 4 | Motors that avoid intrusion of objects larger than Φ1 mm |
Protective | 5 | Motors that avoid intrusion of large amounts of dust |
Protective | 6 | Motors that completely avoid intrusion of dust |
The meaning of the second code ○ (protection against liquids)
Form | Mark | Illustrate |
no protection | 0 | Motor without protection device |
Anti-drip type | 1 | Motors protected from vertically falling water drops |
Anti-drip type | 2 | Protect the motor from water drops within 15° from vertical |
Rainproof | 3 | Protect the motor from water drops within 60° from vertical |
Waterproof | 4 | Motors protected from water splashing from all directions |
Anti-spout | 5 | Motors protected from water jets from all directions |
Anti-wave type | 6 | Motors that protect against waves coming from all directions (for decks) |
Anti-immersion | 7 | Motors that can be immersed in water for a short period of time (depth between 0.15m and 1m) |
Soak in water | 8 | Motors that can be immersed in water for a long time (depth is not limited) |
