Understanding the IP rating standard, and specifically getting the picture with respect to IP65, we now know the test criteria a motor must meet. An independent, qualified testing facility places a motor in a sealed chamber filled with blowing fine powder ensuring it is dust tight. In another chamber, 12.5mm nozzles are positioned at a distance of 3 meters to hit the motor from all directions with powerful water jets, not exceeding 100 kPa, for 3 minutes. Passing these tests, the motor is certified and we are good.
Not so fast! This is the test criteria per the IEC standard. However, we completely understand the real world and go quite a bit farther in our Lexium MDrive testing procedures.
In addition to the IEC standard testing for IP65 certification, our own team of quality engineers continues subjecting products in extreme life testing conditions. And, while IP65-rated products are now being offered as standard products, for the past decade thousands of sealed MDrive custom products have been put into use around the globe. The result is true real world quality validation.
In the lines above we have covered what IP ratings mean for protection levels and testing criteria. We have also, more importantly, covered what ratings do not mean in the case of IP65.
Applying an IP-rated motor in a system is no different than applying a non IP-rated motor, as both require the correct fit for the application to operate successfully. IP ratings do not negate the need for consideration of the environment in which the device will be applied, including the possibility of additional protection.
Exercising their grey matter to understand IP ratings, engineers can make intelligent design decisions. Good decisions, such as selecting appropriately rated devices, result in applications operating as expected in specified environmental conditions.