12mm Proximity Sensor -LJ12A3-4-Z/BX

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Model : LJ12A3-4-Z/BX


Sensor Type: Inductive


Output Type : Normally OPEN (NPN)


Diameter of Head : 12mm


Cable Length: 1m (approx.)


Detecting Distance : 4mm (May vary slightly by material)


Detecting Object : Metal


Supply Voltage : DC 6-36V


Current Output : 300mA


Response Frequency : 100Hz


Operating Temperature : -25 to +65 Celsius (Non-freezing Condition)


VIN: Brown
V0: Blue
Signal: Black



12mm Diameter Proximity Sensor

Color may vary


Product Name : Inductive Proximity Sensor

Model number : LJ12A3-4-Z/BX

Wire Type : 3 Wire Type (Brown, Blue, Black)

Output Type : NPN NO(normally open, like mechanical endstop);

Detecting Distance : 4mm(+/-10%);

Supply Voltage : DC 6-36V


Model number LJ12A3-4 series
External dimensions M12x50
Installation type Shielded
Detection distance 4mm
Setting distance 0-1.6 mm
Supply voltage 6-36Vdc; 90-250Vac, 50/60Hz
Output current DC type: 300mA max; AC Type: 400mA
Standard detected object Mild steel (12x12x1mm)
Sensing object Magnetic metals (if it is not magnetic metals, the sensing distance would decrease)
Response frequency 500Hz
Matched mounting bracket M12 mounting bracket
Output indication Red LED
Short-circuit protection No
Reverse connection protection Yes
Insulation resistance 50MΩ min (between charging part and housing)
Dielectric strength 1000Vac, 1min (between charging part and housing)
IP Rating IP65
Operating temperature -25 to 70 °C (13 to 158 °F)
Cable length 1.2m, PVC cable
Material Case: Brass-nickel plated; Sensing surface: ABS




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  • 5

    Posted by Corey Abbott on Jul 1st 2020

    I've ordered several of these and they have all been perfect. They work great with an aluminum bed with glass or pei build surface. They don't pick up on PCB type beds but I was able to put a sheet of 26ga steel on top of the bed and under a sheet of 3mm glass and that worked great.

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