SKU: SENS-1232
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LJC30A3-H-Z/BX Capacitive Proximity Sensor NPN NO, DC 6–36V, 300mA, Detection Range 1–15 mm

₹529.00 (Inclusive of all taxes)
Out of Stock

The LJC30A3-H-Z/BX is a capacitive proximity sensor with NPN normally open (NO) output, designed for non-contact detection of dielectric materials (non-metallic objects) within a 1–15 mm range. It operates on a wide 6–36V DC supply, making it compatible with industrial PLCs, 24V control systems, and automation setups.

Features

  • Capacitive sensing principle for detecting non-metallic dielectric materials.
  • NPN normally open (NO) transistor output, sinking up to 300mA load current.
  • Wide operating voltage range of 6–36V DC for flexible system integration.
  • Adjustable detection distance from 1 mm to 15 mm via potentiometer.
  • Includes a 120 cm (approx. 49″) integrated cable for simplified installation.

Out of stock

Description

The LJC30A3-H-Z/BX utilizes a capacitive sensing field to detect the presence of dielectric materials such as plastics, glass, wood, liquids, and powders, distinguishing it from inductive sensors which only detect metals. Its NPN open-collector output switches to ground when a target is detected, providing a clean digital signal for machine control.

Built for industrial environments, the sensor features a robust housing designed for reliable operation. The integrated 120 cm cable facilitates direct wiring to control cabinets, while the adjustable sensing distance allows for precise setup to accommodate various material types and application geometries.

Key Features

  • Capacitive sensing technology for universal material detection (non-metallic).
  • High-current NPN output (300mA max) capable of driving relays, solenoids, or PLC inputs directly.
  • Broad 6–36V DC operating voltage ensures compatibility with 12V, 24V, and other common industrial DC supplies.
  • Integrated sensitivity adjustment potentiometer for fine-tuning the 1–15 mm detection range.
  • Durable construction with an integrated 120 cm cable for robust field installation.
  • Fast response time for high-speed counting, positioning, and presence detection applications.
  • Optimized performance-to-cost ratio for high-volume automation and process control.

Applications

  • Liquid level detection in non-metallic tanks and transparent pipes.
  • Presence sensing of plastic bottles, cardboard boxes, or glass containers on conveyor lines.
  • Powder and granular material level monitoring in hoppers and silos.
  • Non-contact detection of wood, composite, or ceramic parts in automated assembly.
  • Proximity switching in packaging machinery for paper, film, or foil materials.

Technical Specifications

Model NumberLJC30A3-H-Z/BX
Sensor TypeCapacitive Proximity
Output ConfigurationNPN, Normally Open (NO)
Detection PrincipleCapacitive (Dielectric Sensing)
Detection Distance1 mm to 15 mm (Adjustable)
Supply Voltage6–36V DC
Output CurrentMax. 300mA
Output TypeOpen Collector
Cable Length120 cm (approx. 49")
Mounting Hole Diameter30 mm
Response TimeFast (Typical for ON-OFF operation)
Detection ObjectDielectric Materials (Plastics, Glass, Liquids, etc.)
Operation ModeON-OFF

Frequently Asked Questions

What types of materials can this LJC30A3 sensor detect?

This is a capacitive sensor, designed to detect dielectric (non-conductive) materials such as plastics, glass, wood, liquids, powders, and ceramics. It cannot detect pure metallic objects, which require an inductive proximity sensor.

How do I wire the NPN Normally Open (NO) output?

Connect the brown wire to your positive DC supply (6-36V), the blue wire to DC common (0V/GND), and the black wire is the NPN output. When a target is detected, the black output wire switches to ground (0V), sinking current to the common (blue) line. Always connect the load (e.g., PLC input, relay coil) between the positive supply and the black output wire.

Can I adjust the detection distance?

Yes, the sensor features an integrated sensitivity adjustment potentiometer. Turning it allows you to fine-tune the effective sensing distance within the specified 1 mm to 15 mm range to suit different material types and application setups.

Is this sensor suitable for 24V industrial PLC systems?

Absolutely. Its wide 6–36V DC operating range includes standard 24V DC industrial control voltages. The NPN output is directly compatible with PLC digital inputs configured for sinking (NPN) wiring.

Package Includes

  • 1 x LJC30A3-H-Z/BX Capacitive Proximity Sensor

Additional Information

Weight 0.145 kg
Dimensions 13 × 9 × 2 cm