Omron E3S-GS3E4 2M Photoelectric Sensor
Omron E3S-GS3E4 2M is a grooved photoelectric sensor designed for object sensing across a fixed 30 mm slot. Its 940 nm infrared LED establishes the optical path inside the groove, allowing opaque targets measuring 6 mm in diameter or larger to change the switching state as they enter the sensing area. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable for electrical connection. Load current is rated up to 80 mA, while a one-turn adjuster supports sensitivity setting. Response time is specified at 1 ms. Within the E3S Series, the E3S-GS3E4 2M provides the grooved configuration. Explore 30 mm grooved photoelectric sensors across Omron Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-GS3E4 2M |
Omron E3S-GS3E4 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Distance | 30 mm |
| Standard Sensing Object | Opaque, 6-mm dia. min. |
| Light Source | Infrared LED (940 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 40 mA max. |
| Control Output | Load power supply voltage: 24 VDC max., Load current: 80 mA max. |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25 to 55°C (with no icing or condensation) Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% (with no condensation) Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. (at 500 VDC) |
| Dielectric Strength | 1,000 VAC at 50/60 Hz for 1 min |
| Vibration Resistance | 10 to 55 Hz with a 1.5-mm double amplitude for 2 h each in X, Y and Z directions |
| Shock Resistance | 500 m/s2, for 3 times each in X, Y and Z directions |
| Degree Of Protection | IEC IP67 |
| Material | Zinc die-cas, Polycarbonate, Polycarbonate |
The Omron E3S-GS3E4 2M Photoelectric Sensor uses a grooved optical arrangement with a fixed 30 mm sensing slot. Its 940 nm infrared LED establishes the optical path inside the groove, and opaque objects measuring 6 mm in diameter or larger change the switching state when they enter this area. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable for electrical connection. Current consumption is specified at 40 mA maximum, while load supply voltage is rated up to 24 VDC and load current up to 80 mA. A one-turn adjuster supports sensitivity setting for the intended target condition. Operate or reset time is specified at 1 ms maximum, supporting rapid object presence and position monitoring.
For an Omron grooved photoelectric sensor requiring a fixed 30 mm slot and pre-wired connection, the relevant model is the E3S-GS3E4. Ambient-light resistance reaches 3,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -25 to 55°C, while storage ranges from -40 to 70°C without icing or condensation. Insulation resistance is specified at 20 MΩ minimum at 500 VDC, while dielectric strength is 1,000 VAC for one minute. Zinc die-cast and polycarbonate are among the listed materials. Its specification also suits searches for an Omron 30 mm slot sensor and Omron infrared grooved sensor. For another E3S grooved configuration with the same 30 mm sensing distance, see E3S-GS3B4 2M.


