Omron E3T-CT24S 2M Ultracompact Photoelectric Sensor
Omron E3T-CT24S 2M is an ultracompact cylindrical through-beam photoelectric sensor with a 500 mm sensing distance and PNP output. Its red LED establishes the optical beam between the emitter and receiver, while Dark-ON operation defines the specified switching behavior when the beam condition changes. The sensor operates from a 12 to 24 VDC supply and provides an operate or reset time of 0.5 ms max. A 2 m pre-wired cable supports direct electrical connection, while the compact cylindrical format suits narrow mounting positions. Within the E3T Series, the E3T-CT24S 2M provides the PNP side-view option. Similar 500 mm through-beam sensors are available across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-CT24S 2M |
Omron E3T-CT24S 2M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Cylinder type |
| Sensing Distance | 500mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | PNP |
| Connection Method | Pre-wired cable length 2m |
| Current Consumption | 30 mA max. (Emitter 15 mA max., Receiver 15 mA max.) |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Dark-ON |
| Response Time | 0.5 ms max. |
| Degree Of Protection | IP65 |
| Material | SUS303 |
| Material Lens | Polysulphone |
| Weight | . 60 g |
The Omron E3T-CT24S 2M Photoelectric Sensor uses a through-beam sensing arrangement with a maximum distance of 500 mm in an ultracompact cylindrical side-view format. The through-beam set consists of the E3T-CT24S-L emitter and E3T-CT24S-D receiver. A red LED establishes the optical beam between both sides, while the PNP open-collector output sends the switching state from the receiver to compatible PLC inputs and machine-control circuitry. Operating voltage is 12 to 24 VDC. Current consumption is specified at 15 mA max. for the emitter and 15 mA max. for the receiver. Dark-ON operation is provided, with operate or reset time specified at 0.5 ms max. A 2 m pre-wired cable provides direct electrical connection.
For an Omron PNP through beam photoelectric sensor requiring 500 mm sensing and a compact side-view body, the corresponding model is the E3T-CT24S. Its control output supports up to 30 VDC and 80 mA, with a residual voltage of 1 V max. The enclosure is specified at IP65, with SUS303 and polysulphone listed among the materials. This configuration also suits searches for an Omron 500 mm PNP sensor and Omron miniature through beam sensor. Its 0.5 ms response supports fast switching in compact machines, component handling equipment, and short conveyor sections. For the corresponding NPN-output version with the same sensing distance and Dark-ON logic, see E3T-CT22S 2M.
