SKU: SENS-1253
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Generic LJ30A3-15-Z/BY Inductive Proximity Sensor PNP NO, 15mm Range, 6-36VDC, IP65

₹529.00 (Inclusive of all taxes)
Out of Stock

The LJ30A3-15-Z/BY is a PNP normally open (NO) inductive proximity sensor designed for non-contact detection of metallic objects at a range of 15mm. Operating from a 6-36VDC supply, it is compatible with industrial PLCs, 24V control systems, and automation circuits requiring a sinking input.

Features

  • PNP Normally Open (NO) output for sinking logic compatibility.
  • 15mm nominal detection range for ferrous and non-ferrous metals.
  • Wide 6-36VDC operating voltage range for flexible system integration.
  • IP65-rated brass-nickel plated housing for durability in harsh industrial environments.
  • Includes reverse polarity protection to prevent wiring damage.

Out of stock

Description

This inductive proximity sensor generates an oscillating electromagnetic field from its ABS sensing face. When a metallic object enters the 15mm detection zone, it causes eddy current losses that dampen the oscillation, triggering the internal PNP transistor switch to close the circuit between the brown (V+) and black (signal) wires. The normally open (NO) configuration means the output signal line is normally floating (high impedance) until an object is detected.

Constructed with a brass-nickel plated body and an IP65 environmental seal, the sensor is protected against dust ingress and water jets, making it suitable for use in machine tools, conveyor systems, and automated assembly lines where oil, coolant, or particulate matter may be present. The 1.2-meter attached cable provides direct wiring to terminal blocks or connectors.

Key Features

  • Non-Contact Metal Detection: Reliably senses ferrous and non-ferrous metal targets without physical wear.
  • Industrial-Grade Housing: Brass-nickel plated case provides excellent mechanical strength and corrosion resistance.
  • Wide Voltage Compatibility: Stable operation from 6VDC to 36VDC, accommodating both 12V and 24V industrial standards.
  • Environmental Protection: IP65 rating ensures reliable performance in dusty or wet conditions common in factories.
  • Built-in Safeguards: Integrated reverse connection protection prevents damage from incorrect power wiring.
  • Optimized Sensing Face: Non-shielded (flush-mountable) design allows for side-by-side installation without mutual interference.

Applications

  • Machine tool position sensing for spindle orientation or tool changer indexing.
  • Conveyor belt object detection and counting in packaging and material handling systems.
  • End-of-travel limit switching in automated linear actuators and robotic arms.
  • Presence verification of metal parts in assembly jigs and welding fixtures.
  • Safety interlock monitoring for access doors on industrial equipment.

Technical Specifications

Model NumberLJ30A3-15-Z/BY
Detection PrincipleInductive
Output TypePNP, Normally Open (NO)
Nominal Detection Range15 mm
Setting Distance0 - 12 mm
Operating Voltage6 - 36 VDC
Max. Load Current300 mA
Housing MaterialBrass-Nickel Plated
Sensing Face MaterialABS
IP RatingIP65
Cable Length1.2 m
Detection ObjectMetallic Objects (Ferrous & Non-Ferrous)

Frequently Asked Questions

What is the wiring diagram for this PNP NO inductive sensor?

Connect the brown wire to your positive DC supply voltage (6-36VDC). Connect the black wire to your PLC input or load. Connect the blue wire to the DC common or ground. When a metal target is within 15mm, the PNP transistor activates, connecting the black signal wire to the positive supply, providing a 'high' signal to a sinking input.

Can this sensor detect non-ferrous metals like aluminum or copper?

Yes, inductive proximity sensors detect all conductive metals, but the effective sensing distance is reduced for non-ferrous metals like aluminum or copper compared to ferrous steel. For the LJ30A3-15-Z/BY, the 15mm nominal range is specified for mild steel; expect a reduced range, typically 30-50%, for non-ferrous targets.

What does 'non-shielded' mean for installation?

A non-shielded (flush-mountable) sensor has its sensing field projecting from the front and sides. It can be mounted flush in metal without affecting performance but requires more spacing (typically 2x the sensor diameter) between adjacent sensors to prevent mutual interference. This design offers a longer range compared to shielded sensors.

Is this sensor suitable for wet or dusty environments?

Yes, with its IP65 rating, the sensor is protected against dust ingress and low-pressure water jets from any direction. It is suitable for most industrial environments, including those with occasional washdowns or high particulate matter, but is not submersible or rated for high-pressure, high-temperature cleaning.

Package Includes

  • 1 x Inductive Proximity Sensor (LJ30A3-15-Z/BY)

Additional Information

Weight 0.08 kg
Dimensions 12 × 9 × 4 cm