Omron E3Z-T61K 5M Photoelectric Sensor
The Omron E3Z-T61K 5M Photoelectric Sensor combines a 15 m through-beam sensing distance with NPN output for long-range object detection. Its 870 nm infrared LED creates the optical path between the transmitting and receiving elements, while interruption of that beam establishes the detection condition. The NPN output communicates the resulting sensing state to compatible PLC inputs and machine-control circuitry. Selectable Light-ON and Dark-ON operation provides a choice of output behavior according to the required control logic. Operating from 12 to 24 VDC, this model includes a 5 m pre-wired cable for electrical integration. The supplied specifications do not define additional characteristics associated with the K suffix, so none have been inferred. The E3Z Series offers the E3Z-T61K 5M within the industrial through-beam sensor range available from Omron industrial automation.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-T61K 5M |
Omron E3Z-T61K 5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square |
| Sensing Distance | 15 m |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 5m Length |
| Current Consumption | 26.4 VDC max |
| Light Source (Wavelength) | Infrared LED (870 nm) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Degree Of Protection | IEC: IP67 |
| Material | Polybutylene terephthalate (PBT) |
| Material Lens | Denatured Polyarylate |
| Features | Transparent detection |
| Weight | 65g |
The Omron E3Z-T61K 5M Photoelectric Sensor uses through-beam sensing across a specified distance of 15 m. An 870 nm infrared LED establishes the optical path between the transmitting and receiving sides, and the sensing state changes when a target interrupts the beam. The NPN output communicates the switching state to compatible PLC and machine-control circuitry. The sensor operates from 12 to 24 VDC and includes a 5 m pre-wired cable for extended electrical connection. Light-ON or Dark-ON operation can be selected according to the required control sequence, while response time is specified at 1 ms maximum. PBT is listed for the case, with denatured polyarylate specified for the optical material. The supplied data does not define separate emitter and receiver model numbers for this listing.
For an Omron NPN through-beam photoelectric sensor requiring a 15 m sensing distance and longer fixed wiring, the relevant model is the E3Z-T61K. The 12 to 24 VDC supply range supports connection with compatible machine-control circuitry, while selectable switching logic allows the output behavior to suit the required sequence. No additional technical characteristic is inferred from the K suffix beyond the supplied specifications. Its configuration also supports requirements for an Omron 15 m infrared sensor and Omron pre-wired through-beam sensor. For a related E3Z-T61K version with explicitly listed emitter and receiver units and 2 m cables, see E3Z-T61K 2M.


