LJ12A3-4-ZBX 圆形接近开关传感器产品介绍（中英文）
【中文介绍】
LJ12A3-4-ZBX是一款高性能非接触式接近开关传感器，采用三线直流NPN输出型设计，具备常开触点功能。其紧凑的圆形结构（M12×1螺纹接口）适合空间受限的工业场景，外壳采用不锈钢材质，防护等级达到IP67，可适应粉尘、油污及潮湿环境。内置高频感应技术，可快速检测金属物体的接近状态，响应时间小于1ms，有效检测距离达4mm±10%，确保精准稳定的信号输出。
产品特点：
- 高频响应：1kHz快速响应频率，满足高速检测需求
- 宽压设计：DC 10-30V宽电压输入范围，兼容多种工业电源
- 抗干扰强：内置反向极性保护和浪涌抑制电路
- 温度稳定：-25℃至+70℃宽温工作范围
- 安装便捷：360°全向感应设计，支持嵌入式或表面安装
应用领域：
适用于自动化产线、包装机械、数控机床等场景，可检测金属工件位置、设备限位控制、传送带物体计数等。典型应用包括机械臂定位、传送带分流控制、自动化仓储系统等。
技术参数：
工作电流：≤15mA
输出电流：≤200mA
空载电流：≤1.5mA
导线长度：标准2米（可定制）
使用提示：
建议安装时与金属背景保持1倍直径间距，定期清理感应面附着物。配套控制器时应确保负载电流不超过额定值，长距离布线建议使用屏蔽电缆。
【English Introduction】
The LJ12A3-4-ZBX is a high-performance non-contact proximity sensor with 3-wire DC NPN normally open configuration. Featuring a compact cylindrical design (M12×1 thread), this sensor integrates high-frequency oscillation technology for reliable metal object detection within 4mm±10% sensing range. The stainless steel housing provides IP67 protection against dust, moisture and oil contamination, making it ideal for harsh industrial environments.
Key Features:
- High-speed response: 1kHz switching frequency for rapid detection
- Wide voltage input: 10-30V DC compatible with industrial power systems
- Enhanced durability: Reverse polarity protection and surge suppression
- Temperature stability: Operational range from -25℃ to +70℃
- Omnidirectional sensing: 360° detection field simplifies installation
Applications:
Ideal for position detection in automated production lines, CNC machine tools and material handling systems. Typical use cases include robotic arm positioning, conveyor sorting systems, and automated warehouse equipment.
Technical Specifications:
Supply Voltage: 10-30V DC
Current Consumption: ≤15mA
Output Current: ≤200mA
Leakage Current: ≤1.5mA
Cable Length: Standard 2m (customizable)
Installation Notes:
Maintain minimum clearance of 12mm from surrounding metal surfaces. Regular cleaning of sensing surface is recommended for optimal performance. When connecting to controllers, ensure load current does not exceed rated capacity. Shielded cables are suggested for long-distance wiring.
This sensor combines precision engineering with robust construction, delivering consistent performance in demanding industrial applications while maintaining simple integration with existing control systems. Its vibration-resistant design ensures reliable operation even in high-mobility scenarios.
