中文介绍： E3S-R2N3光电开关是一种反馈反射式光电开关，具有广泛的工业应用价值。它采用直流型电源，输出类型为NPN，动作模式为常开（NO）加常闭（NC），检测范围可达2米±10%，且检测目标为不透明物体。这种光电开关使用红外光（660nm）作为光源，响应时间为1ms，接通延时为1.5ms。其电源电压范围较广，直流型为DC12—24V（6-36V），能够适应不同设备的供电需求。

在设计上，E3S-R2N3光电开关的检测范围调节方式为固定（Fixed），这使得其在特定应用场景中能够保持稳定的检测性能。它适用于多种工业环境，如自动化生产线、物料输送系统等，能够有效检测物体的存在与否，从而实现自动化控制。此外，该光电开关的耐电压能力较强，充电部分与外壳间可承受AC1000V、50/60Hz的电压，确保了其在复杂电气环境中的可靠性。

英文介绍： The E3S-R2N3 photoelectric switch is a feedback reflective photoelectric switch with extensive industrial application value. It uses a direct current (DC) power supply, has an NPN output type, and features a Normally Open (NO) plus Normally Closed (NC) action mode. The detection range can reach 2 meters ± 10%, and the detection target is non-transparent objects. This photoelectric switch uses infrared light (660nm) as the light source, with a response time of 1ms and a turn-on delay of 1.5ms. Its power supply voltage range is quite wide, with a DC type of 12—24V (6-36V), capable of meeting the power supply requirements of different equipment.

In terms of design, the detection range adjustment method of the E3S-R2N3 photoelectric switch is fixed (Fixed), which ensures stable detection performance in specific application scenarios. It is suitable for a variety of industrial environments, such as automated production lines and material conveying systems, and can effectively detect the presence or absence of objects to achieve automated control. In addition, the photoelectric switch has strong voltage endurance, with the charging part and the housing able to withstand an AC voltage of 1000V at 50/60Hz, ensuring its reliability in complex electrical environments.

E3S-R2N3光电开关的价格会因市场供需、销售渠道以及购买数量等因素而有所波动。一般来说，其价格在几十元到一百多元人民币之间。具体价格还需根据实际购买情况与供应商进行确认。

E3S-R2N3光电开关的生产厂家众多，其中较为知名的有上海双旭电子有限公司、上海经驰实业有限公司等。这些厂家在光电开关领域拥有丰富的生产经验和技术积累，能够提供质量可靠、性能稳定的产品。此外，国际工牌（中国沪工）也生产该型号的光电开关，其产品在市场上也具有一定的份额。