Omron E3T-SL11 5M Ultracompact Photoelectric Sensor
Omron E3T-SL11 5M is an ultrathin limited-reflective photoelectric sensor designed for short-range object sensing from 5 to 15 mm. Its red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output supplies the switching state to compatible industrial control circuits, and Light-ON operation defines the specified output behavior. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and uses a 5 m pre-wired cable for additional wiring length. Within the E3T Series, the E3T-SL11 5M provides the long-cable Light-ON configuration. Related short-range reflective sensors can be explored across Omron Industrial Sensor Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL11 5M |
Omron E3T-SL11 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Limited Reflective |
| Shape | Square type |
| Sensing Distance | 5 to 15 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 5m |
| Current Consumption | 20 mA max. |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Light-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 20g |
The Omron E3T-SL11 5M Photoelectric Sensor uses limited-reflective sensing across a 5 to 15 mm range in an ultrathin square format. Its red LED directs light toward the target, while the built-in amplifier processes the returned optical signal. The NPN output provides the switching state to compatible industrial control circuits, and Light-ON operation defines the specified output behavior. The sensor operates from 12 to 24 VDC and consumes up to 20 mA. Operate or reset time is 1 ms max. A 5 m pre-wired cable provides longer wiring between the sensing position and control equipment, while the compact body supports restricted mounting areas.
For an Omron short range reflective photoelectric sensor requiring NPN output and extended wiring, the corresponding model is the E3T-SL11 5M. Polybutylene terephthalate is specified for the housing, while denatured polyarylate is listed for the optical section. IP67 protection is stated, with approximate weight of 20 g. This specification also suits searches for an Omron 5 m cable reflective sensor and Omron Light ON NPN sensor. The 1 ms response supports close-range part presence and position confirmation in compact automated equipment. For the related Dark-ON version with the same sensing range and cable length, see E3T-SL12 5M.

