--- product_id: 588965031 title: "Heschen M12 Inductive Proximity Sensor Switch Non-shield Type LJ12A3-4-Z/BX Detector 4mm 10-30 VDC 200mA NPN Normally Open(NO) 3 Wire" brand: "heschen" price: "€ 26.85" currency: EUR in_stock: true reviews_count: 5 category: "Heschen" url: https://www.desertcart.pt/products/588965031-heschen-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3 store_origin: PT region: Portugal --- # IP67 waterproof & dustproof rating 4mm precise detection range 10-30 VDC wide voltage compatibility Heschen M12 Inductive Proximity Sensor Switch Non-shield Type LJ12A3-4-Z/BX Detector 4mm 10-30 VDC 200mA NPN Normally Open(NO) 3 Wire **Brand:** heschen **Price:** € 26.85 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your automation game with precision and durability! ## Quick Answers - **What is this?** Heschen M12 Inductive Proximity Sensor Switch Non-shield Type LJ12A3-4-Z/BX Detector 4mm 10-30 VDC 200mA NPN Normally Open(NO) 3 Wire by heschen - **How much does it cost?** € 26.85 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/588965031-heschen-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3) ## Best For - heschen enthusiasts ## Why This Product - Trusted heschen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Endure:** IP67-rated protection ensures reliable performance in harsh environments—rain or dust won’t stop you. - • **Plug & Play with Safety:** Includes power reversal and short-circuit protection for worry-free direct PLC integration. - • **Visual Status Confirmation:** Red LED indicator instantly confirms sensor operation, keeping your workflow transparent and efficient. - • **Pinpoint Precision Detection:** Detects magnetic metals within a tight 4mm ±10% range for flawless automation. - • **Robust Industrial Compatibility:** Operates seamlessly between 10-30 VDC, perfect for diverse PLC and control systems. ## Overview The Heschen M12 Inductive Proximity Sensor Switch LJ12A3-4-Z/BX offers a compact 12mm mounting size with a precise 4mm detection distance. Designed for magnetic metal detection, it supports a broad 10-30 VDC input and delivers up to 200mA current output. Featuring IP67 protection, power reversal and short-circuit safeguards, plus a red LED status indicator, this sensor is engineered for reliable, maintenance-free integration into industrial PLC and control systems. ## Description Power supply reversal connection protection; short-circuit protection, can directly connect with PLCUsed in common places with medium enviroment resistanceRed LED indicates that it's available to detect the sensor operation stateEconomic and simple operationWidely used, can be substitution of min-type switch and limit switchIP 67 protection Review: Fiable - Muy bueno y fiable Review: Works as it should - Fits my four wheeler great and works as it should ## Features - Mounting Hole Diameter: 12mm;Cable Length: 120cm/48" - Detecting Distance: 4mm±10%;Set Distance: 0-3.6mm - Output Type: NPN NO(Normally Open);Non-shield Type - Current Output: 200mA;Working Voltage: 10-30 VDC - Detect Object: Magnetic Metal ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071ZQ6VV6 | | Actuator Type | Push Button | | Brand | Heschen | | Brand Name | Heschen | | Circuit Type | 1-way | | Color | Yellow | | Compatible Devices | Programmable Logic Controllers (PLCs), Industrial Control Systems, Devices using Limit Switches | | Connector Type | Crimp | | Connector type | Crimp | | Contact Material | Metal | | Contact Type | Normally Open | | Contact type | Normally Open | | Control Method | Sensor | | Control Type | Automatic | | Controller Type | Push Button | | Current Rating | 200 Amps | | Current rating | 200 Amps | | Customer Reviews | 4.6 out of 5 stars 385 Reviews | | International Protection Rating | IP67 | | Manufacturer | Heschen Electric Co.Ltd | | Material Type | Metal | | Model | HS-LJ12A3-4-Z/BX | | Mounting Type | Panel Mount | | Number of Items | 1 | | Number of Positions | 1 | | Operating Voltage | 30 Volts | | Operating voltage | 30 Volts | | Operation Mode | ON-OFF | | Operation mode | ON-OFF | | Part Number | LJ12A3-4-Z/BX | | Specification Met | IP67 | | Switch Type | Limit Switch | | Terminal | Crimp | | UPC | 670534170786 | | Unit Count | 1.0 Count | | Wattage | 6 watts | ## Product Details - **Connector type:** Crimp - **Contact type:** Normally Open - **Current rating:** 200 Amps - **Operating voltage:** 30 Volts - **Operation mode:** ON-OFF ## Images ![Heschen M12 Inductive Proximity Sensor Switch Non-shield Type LJ12A3-4-Z/BX Detector 4mm 10-30 VDC 200mA NPN Normally Open(NO) 3 Wire - Image 1](https://m.media-amazon.com/images/I/61JhN6VUm9L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fiable *by C***N on 16 March 2025* Muy bueno y fiable ### ⭐⭐⭐⭐⭐ Works as it should *by A***A on 1 January 2025* Fits my four wheeler great and works as it should ### ⭐⭐⭐⭐⭐ Zuverlässiger Induktiver Näherungsschalter für 3D-Drucker *by A***E on 28 December 2024* Der Heschen Induktive Näherungsschalter LJ12A3-4-Z/BX ist eine hervorragende Wahl für den Einsatz in 3D-Druckern. Mit einer Detektionsreichweite von 4 mm und einem stabilen Betrieb bei 10-30V DC sorgt er für präzise und zuverlässige Funktionalität. Der NPN-Typ (normalerweise offen) ist ideal für die meisten Anwendungen, und die einfache Verkabelung mit 3 Drähten erleichtert die Installation. Er arbeitet zuverlässig und schnell, was ihn perfekt für die Endschalterfunktion in meinem 3D-Drucker macht. Ein tolles Produkt für präzise Druckergebnisse zu einem fairen Preis! ## Frequently Bought Together - Heschen M12 Inductive Proximity Sensor Switch Non-Shield Type LJ12A3-4-Z/BX Detector 4mm 10-30VDC 200mA NPN Normally Open(NO) 3 Wire - FREEDARE Skateboard Wheels 54mm and Bearings Set for Street Tricks (Pack of 4) - Baomain Standard Cylinder SC 63 X 250 G3/8 Bore: 2-1/2 inch, Stroke: 10 inch, Screwed Piston Rod Double-Action and 2Pcs Fittings --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/588965031-heschen-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3](https://www.desertcart.pt/products/588965031-heschen-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-11-13*