Omron E3Z-G61 0.5M Photoelectric Sensor
Omron E3Z-G61 0.5M is a grooved through-beam photoelectric sensor designed around a fixed 25 mm sensing gap. Its 940 nm infrared LED establishes the optical path across the groove, allowing an object to be sensed when it interrupts the beam between the transmitting and receiving elements. The NPN output communicates the switching state to compatible machine-control circuitry, while selectable Light-ON and Dark-ON operation supports different logic requirements. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable. Current consumption is specified at 25 mA maximum, while response time is 1 ms maximum. Within the E3Z Series, the E3Z-G61 0.5M provides a short-cable option for grooved photoelectric sensors across Omron Industrial Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-G61 0.5M |
Omron E3Z-G61 0.5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through beam |
| Shape | Grooved Type |
| Sensing Distance | 25 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 0.5m Length |
| Current Consumption | 25 mA max. |
| Light Source (Wavelength) | Infrared LED (940 nm) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Degree Of Protection | IEC: IP64 |
| Material | ABS (Acrylonitrile Butadiene Styrene) |
| Material Lens | Denatured Polyarylate |
| Features | Transparent detection |
| Weight | 65g |
The Omron E3Z-G61 0.5M Photoelectric Sensor uses a grooved through-beam arrangement with a fixed 25 mm sensing gap. Its 940 nm infrared LED establishes the optical path between the transmitting and receiving elements inside the groove, while interruption of that path produces the switching condition. The NPN output communicates this state to compatible control equipment, while selectable Light-ON and Dark-ON operation supports different machine logic. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable. Current consumption is specified at 25 mA maximum, while response time is 1 ms maximum. ABS and denatured polyarylate are listed as construction materials for this compact grooved configuration.
For an Omron grooved sensor requiring a fixed 25 mm gap, NPN output, and a short pre-wired cable, the relevant model is the E3Z-G61. The fixed slot geometry establishes a defined sensing position and avoids the alignment work normally associated with separate through-beam components. Selectable Light-ON or Dark-ON behavior supports different control sequences, while the 12 to 24 VDC supply range suits common machine-control systems. The supplied specification states IP64 enclosure protection. Its configuration also suits searches for an Omron 25 mm slot sensor and Omron grooved NPN photoelectric sensor. For the same E3Z-G61 sensing arrangement with a longer 2 m pre-wired cable, see the E3Z-G61 2M.


