Omron E3S-5E4 Photoelectric Sensor
Omron E3S-5E4 is a through-beam photoelectric sensor designed for object sensing across a distance of up to 5 m. Its 950 nm infrared LED establishes a beam between separate emitter and receiver units, and the output changes when a target enters the optical path. The sensor operates from 12 to 24 VDC and uses a pre-wired cable for electrical integration. Light-ON or Dark-ON operation can be selected to suit the required machine logic, while response time is specified at 3 ms. The stated sensing target is an opaque object with a minimum diameter of 11 mm. Within the E3S Series, the E3S-5E4 provides the 5 m through-beam option. Related 5 m through-beam sensors are available across Omron Industrial Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-5E4 |
Omron E3S-5E4 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 5 m |
| Standard Sensing Object | Opaque: 11- mm dia. min. |
| Light Source | Infrared LED (950 nm) |
| Power Supply Voltage | 12 to 24 VDC , ripple (p-p): 10% max |
| Connection Method | Pre-wired cable |
| Current Consumption | 50 mA max. (Emitter: 25 mA max., Receiver: 25 mA max.) |
| Control Output | Output current: 1.5 to 4 mA, Load current: 80 mA max. (residual voltage: 2 V max.) |
| Operation Mode | Light-ON/Dark-ON (selectable) |
| Response Time | Operate or reset: 3 ms max. |
| Sensitivity Adjustment | With an indicator |
| Indicators | Light indicator (red), Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25 to 55°C, Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 1,000 VAC, 50/60 Hz for 1 min |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | 500 m/s2 3 times each in X, Y, and Z directions |
| Degree Of Protection | IEC IP67 |
| Material | Zinc die-cast, Polycarbonate, Iron |
The Omron E3S-5E4 Photoelectric Sensor uses through-beam sensing with a built-in amplifier across a maximum distance of 5 m. A 950 nm infrared LED establishes the optical path between separate emitter and receiver units, and an object changes the switching state when it interrupts the beam. The sensor operates from 12 to 24 VDC and uses a pre-wired cable for connection. Total current consumption is specified at 50 mA maximum, divided equally between the emitter and receiver at 25 mA each. Output current is listed from 1.5 to 4 mA, while load current is rated up to 80 mA. Light-ON or Dark-ON operation can be selected, and operate or reset time is specified at 3 ms maximum. Red light and green stability indicators provide visual operating information.
For an Omron 5 m through beam photoelectric sensor requiring infrared sensing and pre-wired connection, the relevant model is the E3S-5E4. The stated sensing target is an opaque object with a minimum diameter of 11 mm. 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. Zinc die-cast, polycarbonate, and iron are among the listed materials. Its specification also suits searches for an Omron infrared photoelectric sensor and Omron 12 to 24 VDC sensor. For a related E3S through-beam model with the same stated 5 m sensing distance, see E3S-5E41.


