Description
The Omron E3S-LS20B4S1 is a diffuse-reflective photoelectric sensor designed for precise object detection within an adjustable sensing range of 5 to 25 cm. It operates on a 12 to 24 VDC power supply and features a PNP open-collector output. The sensor includes built-in DC amplification and focusable optics for stable detection in industrial environments.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Omron |
| Category |
Sensors & Switches |
| Part Number |
E3S-LS20B4S1 |
| Subcategory |
Photoelectric |
| Series |
E3S-LS |
| Sensing Method |
Area Focusable Diffuse-Reflective |
| Sensing Distance |
5 to 25 cm (Adjustable) |
| Light Source |
Red LED |
| Supply Voltage |
12–24 VDC |
| Current Consumption |
40 mA max. |
| Output Type |
PNP Open Collector |
| Max Output Current |
100 mA |
| Response Time |
1 ms max. |
| Operation Mode |
Light-ON / Dark-ON (Selectable) |
| Protection Rating |
IP67 |
| Connection Method |
Pre-wired (2 m Cable) |
| Housing Material |
Metal |
| Weight |
0.20 lbs |
Information About E3S-LS20B4S1
The E3S-LS20B4S1 belongs to the Omron E3S-LS series of focusable photoelectric sensors. It utilizes an area focusable reflective sensing method, allowing continuous adjustment of the sensing distance within its specified range. The unit supports Light-ON and Dark-ON operation modes selectable via wiring and includes built-in short-circuit protection. Designed for industrial use, it features a durable metal housing, IP67 ingress protection, and a pre-wired 2 m cable for installation.
Key Features:
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Diffuse-Reflective Sensing: Area focusable detection for precise object identification.
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Adjustable 5–25 cm Range: Continuously variable sensing distance.
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PNP Open-Collector Output: Solid-state DC output up to 100 mA.
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12–24 VDC Operation: Compatible with standard industrial DC power supplies.
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Light-ON/Dark-ON Selection: Wire-selectable operating mode.
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1 ms Response Time: Fast detection for dynamic applications.
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IP67 Protection Rating: Dust-tight and waterproof construction.
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Built-in Sensitivity Adjustment: Integrated distance and sensitivity controls.
The E3S-LS20B4S1 delivers the reliability and precision required for accurate object detection in industrial automation systems.
