STEGO Pressure compensation device (plastic M40, M12) DA 284


DA 284 | Plastic M40, M12 | IP66/IP68
Passive pressure compensation device for enclosures and control cabinets. Evens out temperature-induced pressure differences between the inside and outside of the cabinet. Humidity escapes through a watertight membrane. Condensation is prevented from forming.
  • Thread sizes: M12 and M40
  • NBR membrane
  • Prevents ingress of water and dirt, IP66

Overview Technical Data

thread M40 x 1.5 or M12 x 1.5 with nut
M40: 5 Nm, M12: 0.5 Nm
M40: approx. 16 mm, M12: approx. 8 mm
sealing gasket NBR
waterproof membrane
M40: Ø 60 x 37 mm, M12: Ø 17 x 17.5 mm
Material adheres to limit values in accordance with RoHS3

Make cut-out Ø 40.5+0.5 mm in enclosure wall for size M40 or Ø 12+0.2 mm for size M12, and mount pressure compensation device with nut. Please make sure that the sealing gasket is put in place on the outer side panel of the enclosure.

Product Variants

Notice: Air permeability at a pressure difference of min. 70 mbar

Summary of your request

Art. No. Connection casing Casing Productname Series Heating element Heater body Model Axial fan Operating voltage Operating voltage
Operating voltage
Voltage type Frequency Heating capacity Inrush current
Surface temperature Rec. pre-fuse
T (time-delay)
Connection Connection PE Air outlet temperature Switch-off temperature Switch-off temperature 2 Switch-on temperature Switch-on temperature 2 Drilling template Operating temperature Flow rate,
free flow
Flow rate,
with filter
Setting range Setting range 2 Current
Nominal current
of socket
Average noise level Enclosure cut-out Enclosure cut-out Storage temperature Storage humidity Ambient temperature Operating humidity Speed Switching capacity
Switching current
Load resistance (external) External Sensor Measuring range Measuring range 2 Note Note 2 Note 3 Note 4 Reaction time Contact type Service life Operation indicator Control contact -
Signal current
Electrical protection Switch Socket Material Material sealing Air permeability Mounting Air intake/Air outlet Filter material Measuring signal Switch temperature
Lamp type Luminous flux Light colour Length / Depth Width Height Diameter Installation depth Fitting position Mounting frame Weight Sensor element Protection class Protection type Protection type UL VDE UL EAC METRO ATEX Ex Protection type Gases Ex Protection type Mine applications Ex Protection type Dusts Temperature class Temperature safety
Accessory Accessory 2 Accessory 3 Accessory 4 Art. No. Accessory Art. No. Accessory 2 Art. No. Accessory 3 Art. No. Accessory 4 Catalogue Article CAD

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STEGO Elektrotechnik GmbH
Kolpingstraße 21
74523 Schwäbisch Hall