Rotary Paddle Type Level Switch NL/NM Series

For powder detection under various circumstances.
Easy handling and stable operation for long term.

Catalog Download

Features

  • Special model withstandable against high temperature and heavy load.
  • As the internal mechanism has been unitized, the switch can be replaced without removing the main body from the tank.
  • A clutch mechanism is provided as standard to protect the motor from overload on the paddle.
  • Variety of paddle shapes support detection of material with various apparent specific gravities.

Operating Principles

When the material restricts the paddle rotated by the motor, the contact is output to stop the motor. When there is no material to detect, the motor resumes to rotate.
ModelNL-8B / NM-SC standard model
Power Source100～110VAC or 200～220VAC 50/60Hz
DC24V (option)
Power Consumption4W
Contact Capacity250VAC 5A Resistance Load
Rate of Rotation 1rpm (50Hz)
Allowable Temperaturebelow 50ºC (in a tank)
Cold-climate specification, heat-resistant specification available
(NL Max.250℃, NM Max.180℃)
Withstand Voltage1500VAC one minute for in between terminal and housing
(Each Terminal - Case)
Allowable Pressure19.6kPa
ColorGold
Process ConnectionG1B or Equivalent to JIS 5K 65A
Enclosure RatingIP65

Product Lineup

In addition to the above, various specifications are available.
For more information, see respective catalogs or contact us by phone or mail.

  • NL-8B

    Standard Flange Type

    NL-8B

    Standard Flange Type

    • Standard model of rotary paddle level switch.
    • Various flanges are available.
    • Wetted part material stainless steel is available.
    • Length under the flange 200mm Max.

  • NL-8BH

    Heat Resistant Type

    NL-8BH

    Heat Resistant Type

    • Applicable to 250℃ (temperature inside the tank).
    • Shaft adjustable model and protective tube extension model are available.
    • Various flanges are available.
    • For further high temperature, air cooling or water cooling are available as options.

  • NL-8BA

    Adjustable Shaft Type

    NL-8BA

    Adjustable Shaft Type

    • For application which needs insertion length adjustment because of the repose angle.
    • Top mounting for high level detection.
    • Length is adjustable with fixing nut.
    • Provided with anti vibration rubber (standard) or spring (option).
    • Insertion length 500mm to 4000mm.

  • NL-8BS

    Extensive Protective Tube Type

    NL-8BS

    Extensive Protective Tube Type

    • Various flanges are available.
    • Wetted part material stainless steel is available.
    • Slide flange is available. Insertion length is adjustable.

  • NL-15B

    Heavy Load Type

    NL-15B

    Heavy Load Type

    • For low level detection inside the big tank.
    • Protective tube extension model and heat resistant model are available.
    • Various flanges are available.
    • Wetted part material stainless steel is available.

  • NM-SC

    Screw Joint Type

    NM-SC

    Screw Joint Type

    • Suitable for small hopper.
    • Budget price is realized as parts are thoroughly standardized.
    • Folding paddle, which does not need to be removed while installation, is available as an option.

  • FL-GM

    Explosion Proof Type

    FL-GM

    Explosion Proof Type

    • d2G4 flame proof model.
    • Shaft adjustable model, protective tube extension model and heat resistant model are available.
    • Various flanges are available.

  • NL-8DA

    For Hanging In The Tank

    NL-8DA

    For Hanging In The Tank

    • Connect the unit to 40A pipe and hang it at the arbitrary height.
    • Housing material: AC or SUS304.
    • Lead wire length is selectable. (standard 350mm)