Omron E3FB-TN11 2M Photoelectric Sensor
Omron E3FB-TN11 2M is an NPN through-beam photoelectric sensor designed for sensing across a 20 m optical path. The Emitter E3FB-TN11-L sends red LED light toward the Receiver E3FB-TN11-D, and an object crossing the beam changes the receiver output state. The sensor operates from 10 to 30 VDC and uses pre-wired 2 m cables for machine connection. Combined current consumption is specified at 40 mA max., with 25 mA for the emitter and 15 mA for the receiver. Response time is 0.5 ms. Within the E3FB Series, the E3FB-TN11 2M provides the NPN wired format. Long optical paths can use 20 m through-beam photoelectric sensors from Omron Automation Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3FB-TN11 2M |
Omron E3FB-TN11 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Cylindrical axial |
| Sensing Distance | 20m |
| Emitter Number | E3FB-TN11-L 2M |
| Receiver Number | E3FB-TN11-D 2M |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable,2M Length |
| Light Source (Wavelength) | Red LED |
| Thread Size | M18 |
| Length | 44 mm |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | 0.5ms |
| Degree Of Protection | IP67/IP69K |
| Material Housing | Brass, nickel plated |
The Omron E3FB-TN11 2M Photoelectric Sensor operates with separate transmitting and receiving units for through-beam sensing across a 20 m distance. The Emitter E3FB-TN11-L sends red LED light toward the Receiver E3FB-TN11-D, and interruption of this optical path changes the NPN output state. Both units operate from 10 to 30 VDC and use pre-wired 2 m cables. Combined current consumption is specified at 40 mA max., consisting of 25 mA max. for the emitter and 15 mA max. for the receiver. Light-ON or Dark-ON operation can be selected, while response time is 0.5 ms. The cylindrical M18 housings use nickel-plated brass and carry IP67 and IP69K protection.
For an Omron NPN through-beam sensor requiring long-distance 20 m sensing and fixed cable wiring, the corresponding model is the E3FB-TN11. The separate emitter and receiver arrangement establishes a defined light path across conveyors, machine openings, or transfer areas where objects pass between both sensing units. Its specification also suits searches for an Omron 20 m photoelectric sensor and Omron pre-wired through-beam sensor. For the related E3FB through-beam model using PNP output and detachable M12 connector wiring over the same 20 m distance, see E3FB-TP21.
