--- product_id: 588965031 title: "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: "£15.26" currency: GBP in_stock: true reviews_count: 5 category: "Heschen" url: https://www.desertcart.co.uk/products/588965031-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3-4 store_origin: GB region: United Kingdom --- # 200mA robust current output 4mm precise detection range 10-30 VDC wide voltage compatibility 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:** £15.26 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your automation game with precision you can trust! ## Quick Answers - **What is this?** 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?** £15.26 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/588965031-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3-4) ## 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 - • **Plug-and-Play Simplicity:** Direct PLC connection with clear red LED status indicator—effortless setup and monitoring. - • **Durable IP67 Rated Design:** Dust-tight and water-resistant, engineered for reliable performance in medium environments. - • **Built-in Safety Protections:** Includes power reversal and short-circuit safeguards for worry-free integration. - • **Pinpoint Precision Detection:** Detects magnetic metals within a tight 4mm ±10% range for flawless automation. - • **Universal Voltage Compatibility:** Operates seamlessly across 10-30 VDC, fitting diverse industrial setups. ## Overview The Heschen M12 Inductive Proximity Sensor Switch offers a compact 12mm mounting design with a 4mm detection distance, supporting 10-30 VDC input and 200mA output. Featuring NPN normally open output and non-shield type sensing, it detects magnetic metals reliably. Built-in protections and IP67 rating ensure durability and safety, making it an ideal replacement for mini switches and limit switches in industrial automation. ## 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: Muy bueno y fiable Review: 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 | | Item model number | HS-LJ12A3-4-Z/BX | | Manufacturer | Heschen Electric Co.Ltd | | Package Dimensions | 9.19 x 7.01 x 1.9 cm; 41 g | ## Product Details - **Connector type:** Crimp - **Contact type:** Normally Open - **Current rating:** 200 Amps - **Operating voltage:** 30 Volts - **Operation mode:** ON-OFF ## Images ![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 ### ⭐⭐⭐⭐⭐ Review *by C***N on 16 March 2025* Muy bueno y fiable ### ⭐⭐⭐⭐⭐ Review *by A***A on 1 January 2025* Fits my four wheeler great and works as it should ### ⭐⭐⭐⭐⭐ Review *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.co.uk/products/588965031-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3-4](https://www.desertcart.co.uk/products/588965031-m12-inductive-proximity-sensor-switch-non-shield-type-lj12a3-4) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-19*