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The rotary paddle level indicator DF30 is used in most bulk solids for full-, or empty-detection mainly within the discharge taper of loading bellows. The individual sensor configuration with a large number of options and a lot of accessories enables an accurate adaptation to any specific application.


Product Features

  • short installation height due to reduced length of process connection with 100 mm minimum including measuring blade
  • short reaction time due to faster rotating speed of the motor
  • unaffected by pressure, temperature, dust, caking, and conductivity of material
  • to be used in all areas with potentially explosive atmospheres as well
  • versatile and universally applicable
  • fantastic price-performance-ratio
  • high reliability
  • continuous operation without maintenance
  • easy installation


Further information on ATEX

Supply voltage
230, 115, 48, 24 V AC / 48, 24, 12 V DC
Signal contact
1mA / 4V DC … 2A / 250V AC
change-over contact, potential-free
Bulk goods temperature
-25 °C ... +80 °C
Ambient temperature
-40 °C … +70 °C
Process pressure
-0,5 bar … 5 bar
ATEX approval
Process connection
Aluminium or stainless steel
Housing IP66
Aluminium or stainless steel
Extension (shaft and measuring blade)
Stainless steel
Sealing ring
Mounting position
Technical data

The DF30 is a level limit switch with a very short process connection for bulk goods such as powder, granulate, fine and coarse-grained. These DF30 that is typically installed in loading bellows reliably and precisely gives a signal as soon as the truck is fully loaded. Therefore it is used in many different industries:



Our level control indicators are named in business magazins as paddle switches, rotary paddel switches, point measurement devices, level sensor, level switch or level control.