Omron E3T-FT12 5M Ultracompact Photoelectric Sensor
Omron E3T-FT12 5M is an ultracompact through-beam photoelectric sensor designed for object sensing across a 500 mm span. A red LED establishes the optical beam between the emitter and receiver, while the NPN output provides the switching signal to compatible PLC inputs and control circuitry. Dark-ON operation is specified, with an operate or reset time of 1 ms max. The sensor operates from 12 to 24 VDC and uses a 5 m pre-wired cable, providing additional wiring distance between the sensing position and control equipment. Within the E3T Series, the E3T-FT12 5M provides the extended-cable NPN configuration. Related long-cable through-beam sensors are available across Omron Industrial Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-FT12 5M |
Omron E3T-FT12 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Rectangular type |
| Sensing Distance | 500 mm |
| 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 | Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 40g |
The Omron E3T-FT12 5M Photoelectric Sensor uses through-beam sensing across a 500 mm distance in an ultrathin rectangular body. The sensing set uses the E3T-FT12-L emitter and E3T-FT12-D receiver. A red LED establishes the beam between both sides, while the NPN output sends the switching state from the receiver to compatible PLC inputs and control circuitry. Dark-ON operation is specified. The sensor operates from 12 to 24 VDC, while current consumption is listed at 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 Dark-ON operation, 500 mm sensing, and extended wiring, the corresponding model is the E3T-FT12 5M. 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 configuration also suits searches for an Omron 5 m cable photoelectric sensor and Omron 500 mm Dark ON sensor. The 1 ms response supports fast object presence and position switching across compact machine openings. For the corresponding 2 m cable version with the same output and operating mode, see E3T-FT12 2M.

