Omron E3T-ST11F 2M Through-beam Photoelectric Sensor
Omron E3T-ST11F 2M is an ultracompact through-beam photoelectric sensor designed for object sensing across a 1 m distance. An 860 nm infrared LED establishes the optical path between the emitter and receiver, distinguishing this version from red-light E3T models. The NPN output sends the switching state to compatible industrial control circuitry, while Light-ON operation defines the specified behavior. The sensor operates from 12 to 24 VDC, responds within 1 ms max., and includes a 2 m pre-wired cable. Total current consumption is 30 mA max. for both sensing sides. Within the E3T Series, the E3T-ST11F 2M provides the infrared Light-ON option. Related infrared through-beam sensors are available across Omron Sensing Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST11F 2M |
Omron E3T-ST11F 2M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square type |
| Sensing Distance | 1 m |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 2m |
| Current Consumption | 30 mA max. (Emitter 10 mA max., Receiver 20 mA max.) |
| Light Source (Wavelength) | Infrared LED (860 nm) |
| Operation Mode | Light-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 40g |
The Omron E3T-ST11F 2M Photoelectric Sensor uses through-beam sensing across a 1 m distance with an infrared optical source. An 860 nm infrared LED establishes the beam between the emitter and receiver, while the NPN output transfers the switching state from the receiving side to compatible industrial control circuitry. Light-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC and consumes 30 mA max. in total, divided between 10 mA max. for the emitter and 20 mA max. for the receiver. Operate or reset time is specified at 1 ms max. A 2 m pre-wired cable provides the electrical connection.
For an Omron infrared through beam photoelectric sensor requiring NPN output and 1 m sensing, the relevant model is the E3T-ST11F. Polybutylene terephthalate is listed for the housing and denatured polyarylate for the optical section. IP67 protection is specified, while approximate weight is 40 g. This version also suits searches for an Omron 860 nm sensor and Omron infrared NPN sensor. The 1 ms response supports object presence and position confirmation where a non-visible optical source is preferred for industrial sensing applications. For the related infrared Dark-ON version using the same sensing distance, see E3T-ST12F 2M.
