Category: Heater / Radiator
Product: HTW-220 HTW-320BL HTW-320PN HTW-320WT HTW-111PN HTW-111BL HTW-521 HTW-330 HTW-621 HTW-330-SC HTW-115U-BL HTW-115U-WT
General
Importance: star_ratestar_ratestar_ratestar_ratestar_rate
Difficulty: star_ratestar_ratestar_ratestar_ratestar_rate
Answer:
IP (Ingress Protection) is the international rating for protection against dust and water. 2 means protection against objects with diameter larger than 12.5 mm; 3 means protection against spraying water for 5 minutes.