MF20/MF40 actuators water damage

[FraMar]

Hi experts! Several MF20 and MF40 actuators are installed oper air in a building site.

Despite them being IP54, several of them show water leakage and stopped working. 

Has it ever happened to any of you? Might it be cause by any installation inaccuracies? 

Thanks,
Francesco

[CraigEl · Accepted solution]

@sesa495065_brid IP 54 gives protection against splashed water, it doesn't make them water proof.

The first number (in this case, 5) points to how well a device can withstand solid intrusions, such as dust. The second number (4 here) tells us how well that same piece of tech can withstand liquids, like water. 

IP54-rated devices do offer a limited level of water resistance.

According to the International Electrotechnical Commission, a rating of 5 for solids would indicate that an IP54-certified device is dust-protected, just not dust-tight.

However, when it comes to liquids, a rating of 4 points toward a device that is only protected against splashing water.

“Water splashed against the enclosure from any direction will have no harmful effects,” asserts the IEC’s Ingress Protection rating guide.

While this does mean that an IP54-rated device carries a level of water resistance, it still leaves the device susceptible to damage if faced with jets of water, or temporary or continuous immersion in water. Basically, you won’t want to leave your IP54-certified devices out in heavy rain or have them sprayed with water at pressure.