Omron E3T-ST11 5M Ultracompact Through-Beam Photoelectric Sensor
Omron E3T-ST11 5M is an ultrathin through-beam photoelectric sensor designed for object sensing across a 1 m span. Its red LED establishes the optical path between the emitter and receiver, while the NPN output provides the switching state to compatible PLC inputs and control circuits. Light-ON operation is specified, with an operate or reset time of 1 ms max. The sensor operates from 12 to 24 VDC and includes a 5 m pre-wired cable for longer wiring runs. Total current consumption is 30 mA max. across both sensing sides. Within the E3T Series, the E3T-ST11 5M provides the extended-cable NPN option. Related long-cable through-beam sensors can be explored across Omron Automation Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST11 5M |
Omron E3T-ST11 5M 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 5m |
| Current Consumption | 30 mA max. (Emitter 10 mA max., Receiver 20 mA max.) |
| Light Source (Wavelength) | Red LED |
| 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-ST11 5M Photoelectric Sensor uses through-beam sensing across a 1 m distance in an ultracompact square body. A red LED establishes the optical path between the emitter and receiver, while the NPN output provides the switching state from the receiving side to compatible PLC inputs and machine-control circuitry. Light-ON operation is specified. The sensor operates from 12 to 24 VDC and consumes 30 mA max. in total, with 10 mA max. for the emitter and 20 mA max. for the receiver. Operate or reset time is 1 ms max. A 5 m pre-wired cable provides additional wiring length between the sensing position and control equipment.
For an Omron NPN through beam sensor requiring 1 m sensing and extended wiring, the corresponding model is the E3T-ST11. Polybutylene terephthalate is specified for the housing, while denatured polyarylate is listed for the optical section. IP67 protection and an approximate weight of 40 g are stated. Its specification also matches searches for an Omron 5 m cable through beam sensor and Omron Light ON NPN sensor. The 1 ms response supports quick object presence and position switching in compact automation equipment. For the corresponding Dark-ON version with the same 5 m cable and sensing distance, see E3T-ST12 5M.
