Omron E3NC-LH03 5M Photoelectric Sensor
Omron E3NC-LH03 5M is a coaxial retro-reflective smart laser sensor head with an MSR function for sensing targets across a distance of up to 8 m. A visible 660 nm semiconductor laser diode provides the optical source, while the coaxial sensing arrangement directs transmitted and returned light along the same axis. The model includes a 5 m pre-wired connector cable, providing additional wiring length where the sensing position is farther from associated equipment. Orange OUT and green STABILITY indicators provide visual operating feedback, while ambient-light resistance reaches 20,000 lx under sunlight. Within the E3NC Series, the E3NC-LH03 5M provides the extended-cable version. Related 8 m laser sensor heads can be reviewed across Omron Industrial Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3NC-LH03 5M |
Omron E3NC-LH03 5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Coaxial Retroreflective with MSR function |
| Sensing Distance | 8 m |
| Light Source | Visible semiconductor laser diode (660 nm) |
| Connection Method | Pre-wired connector 5 M Cable |
| Indicators | OUT indicator (orange) and STABILITY indicator (green) |
| Ambient Illumination | Incandescent lamp: 10,000 lx max., Sunlight: 20,000 lx max. |
| Ambient Temperature Range | Operating: −10 to 55°C; Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating and storage: 35% to 85% (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 or 100 m/s2 for 2 hours 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 | Polybutylene terephthalate (PBT, Methacrylic resin (PMMA), Vinyl chloride (PVC) |
| Weight | Approx. 180 g/approx. 130 g |
The Omron E3NC-LH03 5M Photoelectric Sensor uses coaxial retro-reflective laser sensing with an MSR function across a maximum distance of 8 m. Its visible 660 nm semiconductor laser diode creates the optical path, while the coaxial design aligns transmitted and returned light along the same sensing axis. A 5 m pre-wired connector cable provides additional connection length for installations where associated E3NC equipment is farther from the sensing location. Orange OUT and green STABILITY indicators provide visual operating information. Ambient-light resistance reaches 10,000 lx under incandescent light and 20,000 lx under sunlight. Operating temperature extends from -10 to 55°C, while storage is specified from -25 to 70°C without icing or condensation. Humidity is listed at 35% to 85%.
For an Omron coaxial retro reflective laser sensor requiring an 8 m sensing range and extended cable length, the corresponding model is the E3NC-LH03 5M. Insulation resistance is specified at 20 MΩ minimum at 500 VDC, while dielectric strength is listed at 1,000 VAC for one minute. PBT, PMMA, and PVC are among the stated materials. The configuration also suits searches for an Omron 8 m MSR sensor and Omron 5 m cable laser sensor. The longer cable supports installations where the sensor head and associated control equipment are positioned farther apart. For the same sensing method with a shorter pre-wired connector cable, see E3NC-LH03 2M.


