- High degree of protection
- Waterproof membrane
- Corrosion resistant
- Food safe
In enclosures and housings with a high protection class, differential pressure happens due to internal and external temperature changes. In the event of negative pressure, dust and humidity can be drawn into the enclosure through the seals on the doors. This can cause condensation when the air in the enclosure cools down. The easy-to-fit DA 284 pressure compensation device enables pressure compensation with protection class IP66 (M12: IP67). Additionally, the watertight membrane inside the pressure compensation device allows humidity to escape from the cabinet at overpressure, while preventing water, humidity or dirt intrusion at under pressure.
|Depth in enclosure||approx. 9 mm|
|Sealing||sealing gasket NBR|
|Dimensions||M40: Ø 58 x 31mm, M12: Ø 17 x 21 mm|
|Operating / Storage temperature||-35 to +80° C (-31 to +176° F)|
|Note||Material adheres to limit values in accordance with RoHS3|
Make cut-out in enclosure wall of diameter 1.58 inches (40-40.2 mm) for size M40 or 0.48" (12-12.2 mm) for size M12, and mount vent plug with nut. Make sure that the sealing gasket is placed on the outer side of the enclosure. For optimal pressure compensation, it is recommended to use two devices on opposite sides towards the top of the enclosure.
|Part No.||Thread||Material||Protection type||Air permeability¹||1 packing unit||Weight (approx.)|
|28401.0-00||M40 x 1.5||V2A (DIN 1.4305 / AISI 303)1||IP66 (EN 60529) / IPX9K (EN 40050-9)||1.200 liters/hr||1 piece||5.6 oz. (160 g)|
|28401.0-02||M40 x 1.5||V4A (DIN 1.4404 / AISI 316L)||IP66 (EN 60529) / IPX9K (EN 40050-9)||1.200 liters/hr||1 piece||5.8 oz. (165 g)|
|28404.0-00||M12 x 1.5||Nickel-plated aluminium²||IP67||220 liters/hr||1 piece||0.3 oz. (9 g)|
1 at a pressure difference of min. 70 mbar; ² V2A is not sea waterproof