Omron E3FB-RN11 2M Photoelectric Sensor
Omron E3FB-RN11 2M is an NPN retro-reflective photoelectric sensor designed for object sensing across a distance of up to 4 m. Its red LED sends light toward a reflector, and interruption of the returning optical path changes the switching state. The cylindrical axial sensor operates from 10 to 30 VDC and includes a pre-wired 2 m cable for direct electrical connection. Light-ON or Dark-ON operation can be selected according to the required machine logic, while response time is specified at 0.5 ms. Within the E3FB Series, the E3FB-RN11 2M provides the pre-wired NPN retro-reflective format. Longer optical paths can be configured using 4 m retro-reflective photoelectric sensors available through Omron Industrial Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3FB-RN11 2M |
Omron E3FB-RN11 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective |
| Shape | Cylindrical axial |
| Sensing Distance | 4000 mm |
| 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 |
| Features | M.S.R. |
The Omron E3FB-RN11 2M Photoelectric Sensor uses retro-reflective sensing to monitor objects across a distance of up to 4000 mm. A red LED sends light toward a reflector, and an object crossing the optical path changes the amount of returned light and the NPN output state. The sensor operates from 10 to 30 VDC and includes a pre-wired 2 m cable for direct machine connection. Current consumption is specified at 25 mA max. Light-ON or Dark-ON operation can be selected according to the required control sequence, while response time is 0.5 ms. Its cylindrical axial M18 housing is made from nickel-plated brass, and IP67 plus IP69K ratings support installation in demanding industrial areas.
For an Omron retro-reflective photoelectric sensor requiring NPN output, 4 m sensing, and fixed cable wiring, the relevant model is the E3FB-RN11. The specification also suits searches for an Omron 4 m photoelectric sensor, Omron NPN retro-reflective sensor, and Omron pre-wired photoelectric sensor. For the corresponding NPN E3FB model using a similar 0.1 to 4 m retro-reflective range with an M12 connector and MSR function, see E3FB-RN21.
