Inductive Proximity Switch LJ18A3-8-Z/BX – NPN NO 8mm Detection

The LJ18A3-8-Z/BX is an inductive proximity switch designed for reliable non-contact detection of metallic objects in industrial and automation applications. It operates with a wide input voltage range of 6–36V DC and provides an NPN normally open output suitable for microcontrollers and control systems. The sensor uses electromagnetic induction to detect metal targets with a sensing distance of up to 8mm while maintaining stable response performance. Its cylindrical M18 metal housing and sealed structure ensure durability in demanding environments. It is commonly used in CNC machines, 3D printer auto-bed leveling systems, and industrial automation projects.

• Inductive sensing technology for non-contact metal detection
  
• NPN normally open output configuration
  
• Detection distance up to 8 mm for metallic targets
  
• Wide operating voltage range 6–36V DC
  
• Fast response frequency up to 500 Hz
  
• Cylindrical M18 threaded metal housing
  
• Stable operation in industrial environments
  
• Shielded sensor design reduces interference
  
• Long 1.2 m connection cable
  
• Suitable for CNC machines and automation systems
  
• Compatible with 3D printer auto bed leveling systems
  
• Compact design for easy mounting

• Operating Voltage: 6–36V DC
  
• Output Type: NPN Normally Open (NO)
  
• Operating Current: ≤300mA
  
• Detection Distance: 8mm ±10%
  
• Response Frequency: 500Hz
  
• Sensing Method: Inductive Metal Detection
  
• Sensor Diameter: 18mm (M18 Thread)
  
• Cable Length: 1.2m
  
• Object Detection: Magnetic metals (reduced distance for non-magnetic metals)
  
• Operating Temperature: -25°C to +55°C
  
• Dimensions: 70mm × 30mm
  
• Weight: 44g
  
• Model: LJ18A3-8-Z/BX

• Inductive Proximity Switch LJ18A3-8-Z/BX Datasheet
• LJ18A3 M18 Inductive Proximity Sensor 3D Model
  
• 18mm Auto Bed Level Holder

• Best Budget Inductive Proximity Sensor? LJ18A3-8-Z/BX Tested!
  
• Proximity Sensor: Inductive vs Magnetic Types Differences