Sick GSE2S-N2311 Photoelectric Sensor
The Sick GSE2S-N2311 through-beam photoelectric sensor delivers 1.5 m sensing range, NPN output, and PinPoint LED detection for industrial automation. This GSE2S-N2311 Sick 1.5 m NPN Through-beam Sensor from Sick belongs to Sick Photoelectric Sensors and the GTB series, operating on 10–30 V DC with <0.6 ms response time, 800 Hz switching frequency, rectangular ABS housing, PVC cable connection, and IP67 enclosure rating.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Product | GSE2S-N2311 |
Sick GSE2S-N2311 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Through-beam photoelectric sensor |
| Functional principle detail | - |
| Dimensions (W x H x D) | 7.7 mm x 21.8 mm x 13.5 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 0 m ... 2 m |
| Sensing range | 0 m ... 1.5 m |
| Type of Light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 23 mm (500 mm) |
| Wave length | 640 nm |
| Adjustment | None |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 20 mA |
| Switching output | NPN |
| Switching mode | Light/dark switching |
| Output current Imax. | ≤ 50 mA |
| Response time | < 0.6 ms 4) |
| Switching frequency | 800 Hz 5) |
| Connection type | Cable, 4-wire, 2 m |
| Cable material | PVC |
| Cable diameter | Ø 3 mm |
| Housing material | Plastic, ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Ambient operating temperature | –25 °C ... +50 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 72.2 g |
The GSE2S-N2311 Sick 1.5 m NPN Through-beam Sensor is a through-beam photoelectric sensor used for reliable object detection in industrial automation. The GSE2S-N2311 Sick 1.5 m NPN Through-beam Sensor operates with a 0–1.5 m sensing range, NPN switching output, visible red PinPoint LED, and 800 Hz switching frequency. It belongs to the GTB series and integrates into automation systems requiring stable long-distance optical sensing.
This through-beam photoelectric sensor is applied in conveyors, packaging lines, automated assembly stations, and material handling systems. The defined Ø 23 mm light spot supports consistent detection across open gaps, while the <0.6 ms response time enables accurate switching in fast automation cycles. IP67 protection and fixed optical alignment help maintain dependable operation in dust-prone industrial environments.
The Sick GSE2S-N2311 photoelectric sensor combines predictable optical performance with stable electrical characteristics for industrial use. With 10–30 V DC supply, NPN output, and compact ABS housing, it aligns with standard control architectures. Supported by Sick sensor engineering and the GTB series platform, GSE2S-N2311 is suitable for repeatable through-beam sensing across industrial automation applications.

