Omron E3T-SL12 5M Ultracompact Photoelectric Sensor
Omron E3T-SL12 5M is an ultracompact limited-reflective photoelectric sensor designed for close-range object sensing from 5 to 15 mm. A red LED illuminates the target area, while the built-in amplifier processes the returned optical signal. The NPN output communicates the switching state to compatible industrial control inputs, and Dark-ON operation defines the specified logic. The sensor operates from 12 to 24 VDC, consumes up to 20 mA, and includes a 5 m pre-wired cable for longer wiring runs. Its square body supports use in limited mounting space. Within the E3T Series, the E3T-SL12 5M provides the extended-cable Dark-ON option. Related 5 to 15 mm reflective sensors are available across Omron Sensing Range.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3T-SL12 5M |
Omron E3T-SL12 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 | Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | Polybutylene terephthalate |
| Material Lens | Denatured Polyarylate |
| Weight | 20g |
The Omron E3T-SL12 5M Photoelectric Sensor uses limited-reflective sensing across a 5 to 15 mm range in an ultrathin square format. A red LED illuminates the target area, while the built-in amplifier processes the returned optical signal. Its NPN output transfers the switching state to compatible industrial control inputs, and Dark-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 specified at 1 ms max. A 5 m pre-wired cable provides extended wiring length between the sensing point and control equipment, while the compact format supports restricted mounting positions.
For an Omron Dark ON reflective photoelectric sensor requiring NPN output and longer wiring, the corresponding model is the E3T-SL12 5M. Polybutylene terephthalate is specified for the housing and denatured polyarylate for the optical section. IP67 protection is stated, with approximate weight of 20 g. This configuration also suits searches for an Omron 5 m cable NPN sensor and Omron short distance reflective sensor. The 1 ms response supports short-range presence sensing and position confirmation in compact automated equipment. For the related Light-ON version using the same 5 to 15 mm range and 5 m cable, see E3T-SL11 5M.
