Omron E3Z-T61 0.5M Photoelectric Sensor
Omron E3Z-T61 0.5M is a through-beam photoelectric sensor designed for object sensing across a specified distance of 15 m. Its 870 nm infrared LED establishes the optical path between the transmitting and receiving elements, allowing the sensing state to change when a target interrupts the beam. The NPN output communicates the switching state to compatible PLC and machine-control circuitry, while selectable Light-ON and Dark-ON operation supports different control requirements. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable for electrical connection. Response time is specified at 1 ms maximum. The supplied data does not state separate emitter and receiver model numbers. Within the E3Z Series, the E3Z-T61 0.5M provides short fixed wiring within the 15 m through-beam sensor range across Omron Industrial Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-T61 0.5M |
Omron E3Z-T61 0.5M 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, 0.5m 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-T61 0.5M 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 elements, and the sensing state changes when a target interrupts the beam. The NPN output communicates the resulting switching state to compatible PLC and machine-control circuitry. The sensor operates from 12 to 24 VDC and supports selectable Light-ON and Dark-ON operation according to the required control logic. Response time is specified at 1 ms maximum, while a 0.5 m pre-wired cable provides short fixed electrical connection. PBT is listed for the case and denatured polyarylate for the optical material. The supplied information does not state separate emitter and receiver model numbers, so none are added.
For an Omron through-beam photoelectric sensor requiring NPN output, a 15 m sensing distance, and short pre-wired connection, the relevant model is the E3Z-T61. Through-beam sensing uses separate transmitting and receiving elements, providing a defined optical path across the stated distance. The 12 to 24 VDC supply range and selectable switching logic support connection with compatible machine-control inputs, while the 1 ms response supports rapid state changes when the beam is interrupted. The 0.5 m cable is suited to layouts where the machine-side electrical connection is positioned close to the sensing unit. Its specifications also support requirements for an Omron 15 m through-beam sensor and Omron NPN photoelectric sensor. For the same E3Z-T61 configuration with a longer pre-wired cable, see E3Z-T61 2M.


