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  • 08400.9-01 Pressure Compensation Vent Plug Device
  • 08400.9-01 Pressure Compensation Vent Plug Device

08400.9-01 Pressure Compensation Vent Plug Device

1.00 LBS
In Stock
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Product Description


  • High degree of protection (IP55)
  • Easy to install

It has become increasingly important to provide a protected enclosure environment for valuable and crucial electrical and electronic components. In a tightly closed enclosure, pressure differentials can occur during extreme temperature variations, such as day/night operation. When this occurs, the risk of dust and humidity ingression into the control panel increases dramatically. The specially designed DA 084 vent plug permits a controlled change in pressure and can easily be installed in any enclosure. The vent plug is suitable for the use in enclosures and electrical cabinets in accordance with DIN EN 62208.

Technical Data

Mounting PG 29 thread with union nut
Mounting position vertical*
Material plastic, UL 94V-0
Sealing NBR gasket
Air Interface Approx. 2.8 in2 (7 cm2)
Operating/storage temperature -49 to +158°F (-45 to 70°C)
Dimensions Ø 2.58” x 1.2” (Ø 65.5 x 30.5mm)


* Protection type is restricted to IP54 if mounting position is not vertical



A hole with a diameter of 1.46” (37mm) is required for mounting. Make sure that the sealing gasket is placed on the outer side panel of the enclosure. For optimal pressure compensation, it is recommended to use two devices on opposite sides towards the top of the enclosures.



Part No. Protection type Weight (approx.)
08400.9-01 IP55 1.1 oz. (31g)

Product Reviews

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  1. Problem solved!

    Posted by David Alcantaro on 18th Nov 2016

    I used this vent for an LED headlight retrofit project. The car mfg. requires a dust/moisture cover to seal the headlight enclosure. The LED mfg. says to leave the cover off for the cooling fan exhaust. By adapting this vent to the cover I am able to satisfy both requirements. The quality of this product is obvious upon examination.

Warranty Information

1 Year

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