LJ12A3-4-Z/BY proximity switch is an inductive proximity sensor widely used in automation control systems for detecting non-contact position and presence of metal targets.

1. Detection distance: A detection distance of 4mm means that when the metal target approaches within 4mm, the sensor can detect and trigger the switch action. This proximity switch is particularly suitable for applications that require precise distance detection.

2. Working voltage: This sensor can adapt to a DC voltage range of 10-30V, which makes it compatible with various control systems of different voltage levels. This design improves the flexibility and adaptability of the sensor, without worrying about voltage fluctuations affecting its operation.

3. Output form: PNP three wire normally open output, with an output current of 200mA. This means that when the sensor detects a metal target, it will provide a PNP signal to the control system, which can be used to trigger subsequent actions or feedback. A 200mA output current can easily drive most PLC input ports.

4. Material and structure: The metal shell provides good mechanical protection for the sensor, and its dust-proof and waterproof characteristics (usually reaching IP67 or IP68 level) ensure that the sensor can work stably even in harsh environments.

5. Stability and Response: Due to the use of high-precision manufacturing technology and reliable induction technology, the action of this proximity switch is very reliable, with stable performance and the ability to quickly respond to changes, making it suitable for applications that require rapid detection.

6. Installation and use: Through threaded fixation, it can be quickly and easily installed in various positions, making it suitable for different types of mechanical and automation systems.

7. anti-interference ability: Inductive proximity sensors usually have good resistance to electromagnetic interference (EMI), which allows them to work reliably in industrial environments with strong electromagnetic interference.

8. Long lifespan: The design without mechanical contact reduces wear and tear, resulting in a much longer theoretical lifespan than mechanical switches, reducing maintenance costs.

9. Wide application range: Due to its reliability and accuracy, this proximity switch is widely used in multiple industrial and manufacturing industries, such as automotive manufacturing, food packaging, paper printing, wood processing, and automation equipment.

The LJ12A3-4-Z/BY proximity switch has become an indispensable component in automation control systems due to its compact size, wide voltage range, high reliability, and efficient performance in metal target detection, suitable for various industrial detection and control needs.

Yoyik can offer many spare parts for power plants as below:
LVDT Sensor TDZ-FRD-308
LIMIT SWITCH C62D
tachometer sensor types QBJ-CS-1
speed sensor CS-3-M10-L60
Speed Sensor ZS-04-065-3000
Heat Exapansion Sensor TD-2-02 (0-35 mm)
sensor pr6423/015-140 + con021
pt thermocouple TC03A2-KY-2B/S19
LVDT Element TDZ-1-200
EXTENSION CABLE 84508-17
SENSOR LVDT GV (governor valve) 4000TDG
Communication control module SY4301
Differential Pressure Gauge PS531SPP10/BB32N3/S3M
Rotor Position proximity Sensor Extension Cable ESY-80
Chain Broken Sensor BIY18-MD05NA-ZN
Differential Pressure Transmitter 3051TG3A2B21AB4M5
Signal modules – analog 6ES7232-4HD32-0XB0
sensor BTLD 3B
PNEU CYLINDER 822120002
APERTURE LENS TUBE FTV YF-A18-5A-2-15