Omron E3T-ST11 2M Photoelectric Sensor
Omron E3T-ST11 2M is an ultrathin through-beam photoelectric sensor designed for object sensing across a 1 m distance. A red LED establishes the optical path between the emitter and receiver, while the NPN output transfers the switching state to compatible industrial control circuits. Light-ON operation defines the specified logic, and operate or reset time is 1 ms max. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable. Total current consumption is 30 mA max., split between the emitter and receiver. Within the E3T Series, the E3T-ST11 2M provides the Light-ON NPN option. Related 1 m through-beam sensors are available across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-ST11 2M |
Omron E3T-ST11 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) | 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 2M Photoelectric Sensor uses through-beam sensing across a 1 m distance in an ultrathin square format. A red LED establishes the optical path between the emitter and receiver, while the NPN output transfers the switching state from the receiving side to compatible PLC inputs and control circuitry. Light-ON operation defines the specified output logic. The sensor operates from 12 to 24 VDC, with total current consumption of 30 mA max., 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., and a 2 m pre-wired cable provides the electrical connection.
For an Omron NPN through beam photoelectric sensor requiring 1 m sensing and Light-ON operation, the corresponding model is the E3T-ST11. Polybutylene terephthalate is listed for the housing, while denatured polyarylate is specified for the optical section. IP67 protection is stated, and approximate weight is 40 g. Its configuration also suits searches for an Omron 1 m through beam sensor and Omron compact NPN sensor. The 1 ms response supports part presence, counting, and position confirmation across compact machine openings. For the related Dark-ON NPN version with the same 1 m sensing distance, see E3T-ST12 2M.
