The protection rating in each case is based on the prevailing conditions, for example, refrigerated cabinets require moisture proofing as high humidity and significant temperature fluctuations cause condensation to form. The IP protection class in particular also plays an important role, but varies greatly between manufacturers. The best way to determine the protection class needed is to consider the application of the LED lighting, such as the position of the lights in the display unit.
In order to fulfil the respective requirements, lighting should always feature a corresponding level of IP protection, even without a standard specification. Increased mechanical loads also require the lights and cables to be secured in position, and the housing to be particularly robust.
The individual IP protection classes are composed of two numbers, such as IP54 (= IPXIXII). Code number one (XI) represents protection against solid foreign bodies, while code number two (XII) indicates information about protection against water.
|XI||Protection against foreign bodies
|0||No touch protection, and no protection against solid foreign bodies|
|1||Protection against large-area contact with hands, and against foreign bodies with a diameter >50 mm|
|2||Protection against contact with fingers and against foreign bodies with a diameter >12 mm|
|3||Protection against contact with tools, wires, or similar, and against foreign bodies with a diameter >2.5 mm|
|4||Protection against contact with tools, wires, or similar, and against foreign bodies with a diameter >1 mm|
|5||Protection against contact and dust ingress|
|6||Complete protection against contact, protection against dust ingress|
|XII||Protected against water
|0||No water protection|
|1||Protected against vertically falling drops of water|
|2||Protected against direct sprays of water up to 15° from the vertical|
|3||Protected against direct sprays of water up to 60° from the vertical|
|4||Protected against water sprayed from all directions|
|5||Protected against jets of water (nozzle) from all directions|
|6||Protected against water ingress in the event of temporary flooding|
|7||Protected against water ingress in the event of intermittent immersion|
|8||Protected against water ingress in the event of constant submersion; request following consultation between the user and manufacturer|
The gushing water test is a component of the test procedure for the DIN EN 60335-2-89 standard. All electronics in the refrigerated cabinet must pass this test. This should avoid damage resulting from defective products, such as milk that is near its “use by” date. In order to enable refrigerated display unit lighting that has been doused with water to continue functioning flawlessly, our modules are built to a protection class of IP54.