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 Reversible Paddle Type NNL/NNM Series

 

     Features NNL/NNM
The mechanical consumables in the motor have been omitted thanks to our proprietary mechanism, which has realized the long life duration and stability that were impossible for the conventional rotary type level switches!
Its performance is outstanding in processes that includes frequent ON/OFF operations.
  • High-temperature specifications and load bearing specifications are available.
  • As the internal mechanism has been unitized, the switch can be replaced without detaching the main body from the tank.
  • A clutch mechanism is provided as standard equipment to protect the motor from overloads on the paddle.
  • Various apparent specific gravities can be supported by selecting a suitable paddle shape.
     

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      ►Operating Principles  

 

Our proprietary switching mechanism realizes the highly stable and reliable detection regardless of the rotation direction of the paddle. When the deposits of measured substances restrain the paddle being rotated by the motor, the contact is output to stop the motor.
When there is no more deposit left, the motor resumes rotation.





 

REVERSIBLE PADDLE TYPE LEVEL SWITCH : NNL/NNM Series

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      ►Standard Specification 
Power Source   100~110VAC or 200~220VAC 50/60Hz
Power Consumption   4W
Contact Capacity   250VAC 3A Resistance Load
Rate of Rotation   1RPM (50Hz)
Allowable Temperature   below 50℃(in a tank)
Withstand Voltage   1500VAC
  one minute for in between terminal and housing
  (Each Terminal ~ Case)
Allowable Pressure   19.6KPa
Color   Gold
Process Connection   G1B or Equivalent to JIS 5K 65A
Enclosure Rating   Equivalent to IP55

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      ►Product Lineup 
    • NNL-8B
      Standard Flange Type

    • NNL-8BH
      Heat Resistant Type

    • NNL-15B
      Withstand Load Type

    • NNL-8BA
      Adjustable Shaft Type

    • NNL-8BS
      Protective-tube extension type

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

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