OMCH LJ12A3-4-Z/AY M12 12mm 4mm 6-36V 300mA, 3-Wire PNP NC Inductive Proximity Sensor Switch, Thread, Sensing Distance

LJ12A3-4-Z/AY PNP NC Inductive Proximity Sensor Switch, M12 12mm Thread, 4mm Sensing Distance, 6-36V DC 300mA, 3-Wire Normally Closed Approach Sensor, CE Certified

OMCH LJ12A3-4-Z/AY M12 12mm 4mm 6-36V 300mA, 3-Wire PNP NC Inductive Proximity Sensor Switch, Thread, Sensing Distance

The OMCH LJ12A3-4 is an M12 inductive proximity sensor designed for non-contact detection of metal objects in industrial automation and PLC-controlled machinery. The cylindrical sensor features a durable nickel-plated brass housing with a 10.5mm diameter and a total length of 48.5mm, making it suitable for space-constrained installations. It offers a rated sensing distance of 4mm, providing consistent detection of ferrous and non-ferrous metals with high repeatability. The sensor operates on a wide DC voltage range of 6 to 36 volts, allowing flexible integration without additional voltage regulation. The output configuration is PNP normally closed (NC), meaning the output is in a high-state when no target is present and switches off when a metal object enters the sensing range. This configuration is ideal for safety monitoring, fail-safe applications, and systems requiring a closed-loop signal under normal operation. The sensor comes with a 2-meter PVC-insulated cable, providing ample length for wiring to control cabinets. The M12 threaded body allows easy mounting with standard brackets or through-hole installations, and two locking nuts are included. The housing is rated IP67, ensuring resistance to dust and water ingress, making it suitable for harsh environments such as machine tooling and packaging lines. The sensing face is made of durable PBT material for impact resistance. The sensor operates on electromagnetic induction principles, ensuring fast response times and high repeatability. It is RoHS compliant and has no moving parts, eliminating mechanical wear. Typical applications include position sensing, part presence detection, counting, and end-of-travel limit sensing. The PNP NC output is especially suited for safety interlock systems and fail-safe circuits. Installation is straightforward with color-coded wires: brown for positive, blue for negative, and black for the PNP output signal. With its robust construction, reliable performance, and broad voltage compatibility, the OMCH LJ12A3-4 delivers consistent operation in demanding industrial environments.

Brand: OMCH

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Key Features

• ✅ Standard PNP NC Logic: Professional-grade inductive proximity sensor with PNP NC (Normally Closed) output. Ideal for safety limit switching and automation control systems that require a default "Closed" signal.
• ✅ High Precision Sensing: Features a 4mm detection distance with rapid response times and high sensitivity. Reliable non-contact sensing of metallic objects (iron, steel, etc.) ensures zero mechanical wear.
• ✅ Robust Industrial Construction: IP67 waterproof and oil-resistant. Built with a durable brass nickel-plated shell and high-quality ABS sensing head, designed for stable operation in harsh workshop environments.
• ✅ Wide Voltage & Compatibility: Supports a broad input range of DC 6-36V with a stable 300mA output current. Fully compatible with most PLCs and industrial controllers using PNP logic.
• ✅ Certified Reliability & Warranty: CE and RoHS certified. Every OMCH sensor is 100% factory-tested for durability. Includes a 1-year warranty and professional technical support for your peace of mind.

Product Details

• ✅ Color: Black
• ✅ Wattage: 12 watts
• ✅ Material Type: Metal
• ✅ Included Components: 1 X Proximity Sensor, Mounting Hardware

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