| Item Name: | Inductive Approach Sensor Proximity Switch 12mm Diameter |
| Detect Object: | Iron/Metal |
| Detect Distance: ~ 4mm | Iron |
| Cable Length: | 112cm |
| Sensor Diameter: | M12 |
| PCs in Item: | 1 PC |
| Manufacturer: | OMCH®, HuGong Automation LTD. China |
| Model# | Output Type | Wiring | Detecting Distance | Voltage | Diameter | Description |
|---|---|---|---|---|---|---|
| LJ12A3-4-Z/BX | NPN | 3, NO | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/AX | NPN | 3, NC | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/BY | PNP | 3, NO | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/AY | PNP | 3, NC | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/CX | NPN | 4, NO/NC | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/CY | PNP | 4, NO/NC | 4mm | DC 6V~36V | 12mm | |
| LJ12A3-4-Z/EX | 2, NO | 4mm | DC 6V~36V | 12mm | ||
| LJ12A3-4-Z/DX | 2, NC | 4mm | DC 6V~36V | 12mm | ||
| LJ12A3-4-Z/N1 | NPN | 3, NO | 4mm | DC 6V~36V | 12mm | Enhanced Model |
| LJ12A3-4-Z/N2 | NPN | 3, NC | 4mm | DC 6V~36V | 12mm | Enhanced Model |
| LJ12A3-4-Z/P1 | PNP | 3, NO | 4mm | DC 6V~36V | 12mm | Enhanced Model |
| LJ12A3-4-Z/P2 | PNP | 3, NC | 4mm | DC 6V~36V | 12mm | Enhanced Model |
(NC: Normally Close; NO: Normally Open)














John_9j –
It is functioning, but I believe 4mm may be too short in most cases.
abcncfan –
My CNC controller operates at 3.5V–5V DC, so I was concerned about using a 6–12V sensor. However, it’s working well without any resistor wiring—only the warning light is a bit dimmer.