LJ2-15/221（接近开关） 价格 生产厂家

产品概述

LJ2-15/221是一款方形电感式接近开关，采用非接触式检测原理，适用于工业自动化控制领域。该产品通过电磁感应实现金属物体的检测，具有响应速度快、使用寿命长等特点。其外壳采用ABS材质，防护等级达到IP67，可在多种工业环境下稳定工作。产品检测距离为15mm，支持直流6-36V或交流220V供电，满足不同场景需求。2512

技术特点

该接近开关由振荡器、开关电路及放大输出电路三部分组成。当金属目标进入感应区域时，会在目标内产生涡流导致振荡衰减，从而触发开关信号输出。产品具备电源反接保护、过电流保护功能，工作温度范围为-30℃至+65℃，适应恶劣环境。LED指示灯可直观显示电源状态和动作状态，便于现场调试和维护。产品提供NPN/PNP等多种输出方式，兼容不同控制系统需求。6818

应用领域

LJ2-15/221广泛应用于机床、冶金、纺织、印刷、包装等行业，可实现位置检测、限位控制、自动计数等功能。在自动化生产线中，可用于检测机械部件的位置行程，或作为安全防护装置的触发元件。其稳定的性能特别适合需要长期连续运行的工业设备，如输送系统、装配机械等。202628

产品优势

相比机械式行程开关，该产品具有无机械磨损、无火花、抗干扰性强等优势。采用密封设计，能有效防止粉尘、油污等污染物进入内部。产品安装方式灵活，支持埋入式和非埋入式安装，检测面可与金属表面齐平而不影响性能。模块化设计使得维护更换更为便捷，有助于降低用户的使用成本。141624

Product Introduction (English)

The LJ2-15/221 is an inductive proximity sensor with square housing design, featuring non-contact detection for metallic objects. Utilizing electromagnetic induction principle, it offers reliable operation in industrial automation systems. With 15mm sensing distance and IP67 protection rating, this sensor performs consistently in various industrial environments. It supports both DC 6-36V and AC 220V power supply options to accommodate different application requirements.25

Key Features

Comprising oscillator, switching circuit and amplifier, the sensor generates stable output signals when metal targets enter its detection zone. The built-in reverse polarity protection and overload protection enhance operational safety. Operating temperature ranges from -30℃ to +65℃, suitable for harsh conditions. Dual-color LED indicators provide visual status monitoring for power supply and switching actions. Multiple output configurations including NPN/PNP versions are available for system compatibility.68

Applications

Widely implemented in machine tools, metallurgy, textile and printing machinery, this sensor performs position detection, stroke limitation and automatic counting functions. It serves as reliable component for safety guarding systems and production line automation. The durable construction makes it ideal for continuous operation in material handling systems and assembly equipment.2026

Advantages

Compared with mechanical limit switches, this contactless sensor eliminates mechanical wear and spark hazards. The sealed housing effectively resists dust and oil contamination. Flexible mounting options include flush and non-flush installation, allowing sensor face alignment with metal surfaces. Modular design simplifies maintenance and replacement, helping reduce lifecycle costs for end users.1424

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