Reversible Paddle Type Level Switch NNL/NNM Series｜All-round Manufacturer of Level Controllers for Powder, Granules and Liquid　KANSAI Automation Co., Ltd.

Reversible Paddle Type Level Switch NNL/NNM Series

Unique mechanism eliminates mechanical wear parts inside the motor, which results in a long life and stability compared to conventional model!
Suitable in processes with intense ON/OFF operations.

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Features

Long life!
Special model withstandable against high-temperature and heavy load.
As the internal mechanism is unitized, it 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

Our unique switching mechanism realizes the highly stable and reliable detection regardless of the rotational direction of the paddle. When the deposit of material restricts the paddle rotated by the motor, the contact is output to stop the motor. When there is no more material to detect, the motor resumes to rotate.

Model	NNL-8B / NNM-8B Standard Flange Type
Power Source	AC100~110V or AC200～220V 50/60Hz, option DC24V
Power Consumption	4W
Contact Capacity	AC250V 3A　Resistance Load
Rate of Rotation	1RPM (50Hz)
Allowable Temperature	below 50℃（in a tank） Cold-climate specification, heat-resistant specification available (NNL Max.250℃, NNM Max.180℃)
Withstand Voltage	AC1500V 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	IP65

Product Lineup

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

NNL-8B

Standard Flange Type
NNL-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.
NNL-8BH

Heat Resistant Type
NNL-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.
NNL-15B

Withstand Load Type
NNL-15B

Withstand Load Type
- Suitable 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.
NNM-SC

Screw Joint Type
NNM-SC

Screw Joint Type
- Suitable for small hopper.
- Wetted part material stainless steel is available.
- Folding paddle, which does not need to be removed while installation, is available as an option.
NNL-8DA

For Hanging In The Tank
NNL-8DA

For Hanging In The Tank
- Connect the unit to 40A pipe and hang it at the arbitrary height.
- Housing materials: AC or SUS304.
- Lead wire length is selectable. (standard 350mm)
NNL-8BA

Adjustable Shaft Type
NNL-8BA

Adjustable Shaft Type
- For application which needs insertion length adjustment because of the repose angle.
- Top mounting for high level detection.
- Shaft length is adjustable with fixing nut.
- Provided with anti vibration ruber (standard) or spring (option).
- Insertion length 500mm to 4000mm.
NNL-8BS

Protective Tube Extension Type
NNL-8BS

Protective Tube Extension Type
- Various flanges are available.
- Wetted part material stainless steel is available.
- Slide flange is available. Insertion length is adjustable.

Products