Sick GTB2S-N1331 Photoelectric Sensor
The Sick GTB2S-N1331 photoelectric sensor provides background suppression with a 5–30 mm sensing range, NPN output, and PinPoint LED optics, and this GTB2S-N1331 Sick 7.7 mm Photoelectric 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, fixed optics, PVC cable connection, and IP67 enclosure rating.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Product | GTB2S-N1331 |
Sick GTB2S-N1331 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| 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. | 1 mm ... 36 mm |
| Sensing range | 5 mm ... 30 mm |
| Type of Light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 3 mm (15 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 switching |
| Output current Imax. | ≤ 50 mA |
| Response time | < 0.6 ms 4) |
| Switching frequency | 800 Hz 5) |
| Connection type | Cable, 3-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 | 33.7 g |
The GTB2S-N1331 Sick 7.7 mm Photoelectric Sensor is a compact photoelectric proximity sensor used for precise short-range detection in industrial automation. The GTB2S-N1331 Sick 7.7 mm Photoelectric Sensor operates with background suppression, a 5–30 mm sensing range, NPN switching output, and a visible red PinPoint LED. It is part of the GTB series and integrates into machines requiring stable optical detection.
This photoelectric sensor is commonly applied in conveyors, packaging equipment, automated assembly lines, and small-part handling systems. The focused Ø 3 mm light spot supports detection of small objects, while the <0.6 ms response time allows consistent switching in fast automation cycles. IP67 protection and fixed optical alignment help maintain reliable output under typical industrial operating conditions.
The Sick GTB2S-N1331 photoelectric sensor combines defined optical behavior with stable electrical performance for industrial use. With 10–30 V DC supply, 800 Hz switching frequency, and compact ABS housing, it aligns with standard control architectures. Supported by Sick sensor engineering and the GTB series design, GTB2S-N1331 remains suitable for repeatable short-distance sensing in industrial automation environments.
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