Metal trunking protection class ip31 and ip30 difference
5mm should not be fully entered * 2 box tilt 15 degrees, Protection of water droplets When the box is tilted to any point to any angle of 15 degrees, the vertical drop of water droplets should not cause damage 3 protection 25mm diameter and larger foreign object detector Sphere diameter of 25mm should not be fully entered * 3 protection spilled water at 60 degrees from the vertical line on both sides of the spilled water should not cause damage 4 protection 10mm Diameter and larger foreign object Detector ball diameter of 10mm should not be fully entered * 4 Protective water spray from each direction of the box should not cause damage to the water 5 Protection of dust can not completely prevent the dust from entering, but the dust The amount of entry should not exceed the number, that is, damage to the device or safety 5 protection from the water from each direction of the box should not cause damage to the water should be caused by damage 6 dust enclosed box within 20 mbar of low pressure should not invade the dust 6 protection against strong water from each direction to the box of the strong water should not cause damage 7 protection for a short time immersed in the water box in the standard pressure for a short time immersed in water, there should be no harmful effects of water immersion 8 protection Long time immersed in the water box must be in the factory and the user agreed under the conditions of long-term immersion in the water, there should be no harmful effects of water immersion But these conditions must be more complex than those specified in Mark 7
5mm diameter and larger foreign object detector ball diameter of 12
Ip40 High degree of protection division The standard IP protection category is marked with 2 numbers such as a protection category IP44 (where IP is the label letter, 4 is the first marker number, 4 is the second mark number) contact protection and external protection Grade First mark Digital waterproof protection level Second number First mark Digital protection range Second mark Digital protection range Name Description Name Description 0 No protection * 0 No protection 1 Protection 50mm diameter and larger foreign object detector Ball diameter of 50mm should not be fully into the 1 water droplets protection vertical drop of water droplets should not cause damage 2 protection 12
