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  • 28401.0-00 Enclosure Vent Plug M40 Stainless Steel
  • 28401.0-00 Enclosure Vent Plug M40 Stainless Steel

28401.0-00 Enclosure Vent Plug M40 Stainless Steel

2.00 LBS
2-3 weeks

Product Description

  • Waterproof seal (IP 66)
  • Semipermeable membrane
  • Corrosion resistant Stainless Steel
  • Easy to install
  • Two sizes - M40 & M12

Pressure differentials in a hermetically sealed enclosure are a result of the heat generated by electrical and electronic components in the enclosure, as well as the fluctuation of the outside temperature. In the case of negative pressure or vacuum, for example, dust and humidity can be absorbed through the door seal and can enter the enclosure.
The DA 284S Stainless Steel Vent Plug provides a protected enclosure environment for valuable and crucial components with an IP66 rated degree of protection. A semipermeable membrane inside the device allows air and humidity to leave the enclosure. In the opposite direction, it only allows dry air into the enclosure while not allowing humidity and dust from the outside to enter.

Technical Data

Mounting thread with nut
Material stainless steel V2A (DIN 1.4305 / AISI 303)
Sealing NBR gasket
Filter semipermeable membrane
Operating/storage temperature -49 to +176°F (-45 to 80°C)
Protection type see below



A hole with a diameter of 1.6 inches (40+0.5mm) is required for installation. 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.


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Warranty Information

1 Year

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