| 0 | No special protection | No special protection | 0 | No special protection | 
					
						| 1 | with back of a hand | Large foreign bodies >50mm dia | 1 | dripping vertically | 
					
						| 2 | with a finger | Medium foreign bodies >12.5mm dia | 2 | dripping at an angle <15 from vertical | 
					
						| 3 | with tools and wires etc > 2.5mm thick | Medium foreign bodies >2.5mm dia | 3 | spray <60 from vertical | 
					
						| 4 | with tools and wires etc >1mm thick | Medium foreign bodies >1mm dia | 4 | spray from all directions | 
					
						| 5 | complete protection | Dust allowed but not affect function | 5 | jets from a nozzle in all directions | 
					
						| 6 | complete protection | Dust proof | 6 | high pressure jets | 
					
						|  |  |  | 7 | temporary immersion | 
					
						|  |  |  | 8 | permanent immersion |