LJ12A3-4-Z/BX 4mm NPN NO 24V Approach Sensor Inductive Proximity Switch


This product can be applied to control relays, counters, PLC, etc.!

In the general industrial place of production, they are usually selected eddy inductive proximity switch and

capacitive proximity switch. Because these two proximity switches have low requirements for the environment.

A measured object is a conducting object, or an object that can be fixed to a piece of metal. Because of high

response frequency, good anti-interference performance, wide application range and low price, they are usually

choose eddy inductive proximity switch.

If the object is nonmetal (or metal), liquid level, powder height, plastic, tobacco. Select and use capacitive

proximity switch . This switch has a low response frequency but a good stability. The effect of environmental

factors should be taken into account when installing.

If the measured material is a magnetic material, differentiating the magnetic materials from two objects, the Holzer

proximity switch can be selected.

In the environment with better environmental conditions and no dust pollution, photoelectric proximity switch

can be used. The optoelectronic proximity switch has little effect on the object being measured. For example, high

demand for facsimile machines and tobacco machines.

In the anti-theft system, the automatic door usually uses the pyroelectric proximity switch, the ultrasonic proximity

switch, and the microwave close to the switch. In order to improve the reliability of recognition, several proximity

switches are used together.

It is necessary to pay attention to the requirements of working voltage, load current,

response frequency and measuring distance.


  • Detection distance: 4mm ± 10%
  • Set distance: 0~3.6mm
  • Current: 6V 360mA, 12V 200mA, 24V 96mA, maximum instantaneous current 2A
  • Delay distance: 10% below of the detection distance
  • Detection object: Magnetic metal(the detection distance decreases when it is non-magnetic metal)
  • Stand detection object: Iron 15*15*1mm
  • Response frequency: DC:0.5kHz
  • Supply voltage: DC type:DC12V DC24V DC36V(6~36V)impulse(p-p)10% below
  • Withstand voltage: AC1000V 50/60Hz 1min between charging part and housing
  • Meterial: (Housing:Nickel plated brass) (Detection surface:ABS)
  • Protection influence: IP67(IEC specification)

Kit include:

1 x LJ12A3-4-Z/BX NPN 24V Approach Sensor Inductive Proximity Switch

6 JD
In stock

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