Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z/BX

SKU: R1128
Availability: In stock
Product type: Uncategorized
Rs. 147.00 (Inclusive of 18% GST) No Hidden Charges
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LJ12A3-4-Z/BX NPN DC5-36V 4mm Normally Open Tube Type Inductive Proximity Sensor Switch

This LJ12A3-4-Z-BX-NPN DC 5-36V Inductive 4mm NPN-NO Proximity Sensor Switch also known as Approach Sensor is a component widely used in the automatic control industry for detecting, controlling, and non-contact switching. When the proximity switch is close to some target object, it will send out a control signal.

When the metal approaches near-proximity switch sensing area, an Edy Current is induced in metal. Which in turn disturbs the magnetic field produced by the Inductive Proximity Sensor. This change is sensed by the sensor.

These inductive proximity switches can be non-contact, have no pressure, no spark, and quickly issue the electrical command. Accurately reflect the position and stroke movement mechanism. Positioning accuracy, operating frequency, service life. Easy to install and suitable for harsh environments.

This 4mm proximity sensor can detect a variety of metals, miniature size, long life, low price, shielded type installation, anti-interference ability, 1mm detection distance, used for precise positioning of molds, precision machine tools, and robots. 

Applications:

  • It is widely used in machines, paper making, light industry for limiting stations, orientation taking count, speeding trials, etc.
  • Used in the automatic control industry for detecting, controlling, and noncontact switching.

Read our blog Proximity Sensor Types where we explained what is a proximity sensor, different types of Proximity Sensors, and their working principle.

Specifications

Package Includes:

  • 1 x DC 5-36V M12 Inductive 4mm NPN-NO Proximity Sensor Switch

Specifications:

Model number LJ12A3-4 series
External dimensions M12x60
Detection distance 4mm
Setting distance 0-3.2 mm
Supply voltage 5-36Vdc, 5Vdc; 90-250Vac, 50/60Hz
Output current DC type: 36v 300mA max 5v 150mA max; AC Type: 400mA
Standard detected object Lron (12x12x1mm)
Sensing object Magnetic metals (if it is not magnetic metals, the sensing distance would decrease)
Response frequency 200Hz
Matched mounting bracket M12 mounting bracket
Output indication Red LED
Reverse connection protection Yes
Insulation resistance 20M? min (between charging part and housing)
Dielectric strength 1000Vac, 1min (between charging part and housing)
IP Rating IP65
Operating temperature -20 to 70 °C
Cable length 1.2m, PVC cable
Material Case: Brass-nickel plated; Sensing surface: ABS

Return Policy Overview

At ROBODIUM™, we want you to be completely satisfied with your purchase. You may return most items within 7 days of delivery for a full refund or exchange.

Return Window

  • Standard Returns: 7 days from delivery date for any reason, including change of mind.
  • Defective / Damaged Items: 7 days from delivery date.
  • Manufacturing Defects (Warranty): 15 days from delivery, unless otherwise specified on the product page.

What Can Be Returned

Most items sold on ROBODIUM™ can be returned within the return window, including:

  • Items you no longer need or changed your mind about
  • Products received in damaged condition
  • Items with manufacturing defects
  • Wrong items received (item mismatch)
  • Missing components inside the package

Return Conditions

To be eligible for a return, items must be:

  • In their original, unused condition
  • In the original packaging with all accessories, manuals, and free gifts (if any)
  • Accompanied by proof of purchase

Note: Products damaged due to misuse, modification, static discharge, soldering, or improper handling may not be eligible for return.

How to Initiate a Return

  1. Contact us via email at support@robodium.com or call +91 8123109966
  2. Provide your order number and reason for return
  3. Submit photos/videos of the item (mandatory for damaged or defective products)
  4. Our team will review and approve your request within 1–2 business days

Return Pickup Process

We arrange the return pickup for you — hassle-free returns similar to major e-commerce platforms.

  • Pickup is coordinated after return approval
  • Pack the product securely in its original packaging
  • Include a copy of the order confirmation or packing slip
  • Our logistics partner will collect the package at the scheduled time

Return Shipping Costs

  • Defective, damaged, or wrong items: ROBODIUM™ covers all return shipping costs.
  • Change-of-mind returns: ₹100 return shipping fee will be deducted from the refund.

Refund Process

  • Refund Method: Original payment method
  • Processing Time: 5–7 business days after inspection
  • Refund Amount: Full purchase price minus applicable return shipping fees
  • Orders canceled before shipping receive a full refund (minus up to 5% payment gateway charges, if applicable)

Replacements

  • Replacement is shipped after the returned item is inspected and approved
  • Dispatched within 2 business days of receiving the return
  • If replacement is unavailable, a full refund will be issued

Warranty Terms

All products include a minimum 15-day warranty against manufacturing defects, unless otherwise specified on the product page.

Warranty does not cover misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.

Order Cancellations

  • Orders in Pending or Payment Verification status can be canceled for a full refund
  • Contact us immediately before shipping to cancel an order
  • Once shipped, orders cannot be canceled but can be returned after delivery

Customer Service Commitment

  • Email response within 24 hours on business days
  • Phone support: Monday–Saturday, 10:00 AM – 6:00 PM IST
  • Return request review: 1–2 business days
  • Issue resolution within 48 hours of verification

Need Help?

📞 +91 8123109966
✉️ support@robodium.com

Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z/BX

Vendor: ROBODIUM

Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z/BX

Rs. 147.00

Vendor: ROBODIUM

Tube Type Inductive Proximity Sensor Detection Switch NPN DC5-36V 4mm Normally Open switch LJ12A3-4-Z/BX

Rs. 147.00