Omron E3C-S50 2M Photoelectric Sensor
Omron E3C-S50 2M is a through-beam photoelectric sensor designed around separate E3C-S50L emitter and E3C-S50D receiver heads for sensing across distances up to 500 mm. Its 950 nm infrared LED establishes an optical path between the two heads, and an opaque target with a minimum diameter of 3 mm can interrupt the transmitted beam. Both sensing heads use pre-wired 2 m cables for electrical connection and can be positioned independently across the required opening. The supplied specification defines the optical arrangement and sensing range without stating a transistor output type or operating voltage. In the E3C Series, the E3C-S50 2M provides the 500 mm through-beam option. For machine openings requiring half-meter emitter-to-receiver spacing, 500 mm through-beam sensors are available through Omron Automation Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3C-S50 2M |
Omron E3C-S50 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 500 mm |
| Emitter Number | E3C-S50L 2M |
| Receiver Number | E3C-S50D 2M |
| Standard Sensing Object | Opaque, 3-mm dia. min. |
| Light Source | Infrared LED (950 nm) |
| Connection Method | Pre-wired 2M Cable |
| Ambient Illumination | Incandescent lamp: 3,000 lx max., Sunlight 10,000 lx max. |
| Ambient Temperature Range | Operating/Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating/Storage: 35% to 85%RH (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 500 VAC at 50/60 Hz for 1 minute |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 for 3 times each in X, Y, and Z directions |
| Degree Of Protection | IEC 60529 IP64 Limited to indoor use |
| Material | ABS, Acrylics |
| Weight | Approx. 50 g |
The Omron E3C-S50 2M Photoelectric Sensor provides through-beam sensing using separate E3C-S50L emitter and E3C-S50D receiver heads mounted across a sensing distance of up to 500 mm. A 950 nm infrared LED establishes the optical path between the heads, while an opaque target interrupts the transmitted light as it passes through the sensing area. The specified minimum target diameter is 3 mm. Both sensing heads include pre-wired 2 m cables, supporting fixed electrical wiring within compact machinery. Ambient-light resistance is specified up to 3,000 lx for incandescent illumination and 10,000 lx for sunlight. The supplied data defines the optical principle, range, head arrangement, and cable format without stating a supply voltage or transistor output type, so those values are not added.
For an Omron through-beam photoelectric sensor requiring separate emitter and receiver heads, a 500 mm sensing span, infrared light, and fixed cable wiring, the applicable model is the E3C-S50. Operating and storage temperatures extend from -25 to 70°C. ABS and acrylic materials are specified for the sensing heads. Its format also suits searches for an Omron 500 mm through-beam sensor, Omron infrared photoelectric sensor, and Omron emitter receiver sensor. For an E3C through-beam model designed around a shorter 100 mm optical span, see E3C-S10 2M.


