SPLASH PROOF FAN Cooling fan of IP54 and IP55 waterproof capability The lower screen area is a clickable map. Click on frame size or thickness for a display of the appropriate product list. "IP XX"Protection Grade This grade is defined both JIS C090,"Degree of water-proof and protection against entry of solid bode for electromechanical device"and IEC529, "Degrees of Protection by Enclosures(IP code)" IP code is defined as"A coding system of degree of protection and relative items against approach to dangerous points,entry of outside solid body and penetration of water." In IPXX degree,the first"X"indicates degree of protection against approach to dangerous points,entry of solid body and the second"X"indicate degree of protection against penetration of water. The first characteristics The second characteristics