Description
The SICK GTB2S‑P1451 is a high‑performance photoelectric proximity sensor built for reliable object detection in industrial environments. Featuring background suppression technology, it detects objects within a broad range (commonly 25 mm to 90 mm on typical objects, and up to 120 mm maximum) without needing a reflector, making it suitable for conveyor systems, packaging, and material handling tasks. The sensor emits a visible red PinPoint LED (≈640 nm) light beam and produces a sharply defined light spot (≈Ø 3.5 mm at 50 mm), improving alignment and detection accuracy.
Designed for ease of configuration and integration, the GTB2S‑P1451 includes a 3‑turn potentiometer for easy adjustment of the detection distance. It operates on 10 V DC – 30 V DC and draws minimal current (≈20 mA). The PNP light switching output provides up to 50 mA load capability, suitable for direct interfacing with PLC inputs and control modules. The unit’s rectangular ABS housing with IP67 rating protects it against dust and water ingress, while the 3‑wire cable (2 m) with M8 connector simplifies wiring. Fast response time (< 0.6 ms) and 800 Hz switching frequency support dynamic sensing tasks.
📊 Specifications Table
| Specification | Details |
|---|---|
| Model / Part No. | GTB2S‑P1451 (SICK G2S series) |
| Sensor Type | Photoelectric proximity sensor |
| Functional Principle | Background suppression |
| Sensing Range (Max) | 2 mm … 120 mm |
| Typical Sensing Range | 25 mm … 90 mm (varies by object reflectance) |
| Light Source | Visible red PinPoint LED |
| Wavelength | ≈ 640 nm |
| Light Spot Size | Ø 3.5 mm @ 50 mm |
| Adjustment | Potentiometer, 3 turns |
| Supply Voltage | 10 V DC … 30 V DC |
| Current Consumption | ~20 mA |
| Output Type | PNP |
| Switching Mode | Light switching |
| Max Output Current | ≤ 50 mA |
| Response Time | < 0.6 ms |
| Switching Frequency | 800 Hz |
| Connection | Cable, 3‑wire, 2 m (PVC) |
| Cable Diameter | ≈ 3 mm |
| Housing Material | Plastic (ABS) |
| Optics Material | Plastic (PMMA) |
| Enclosure Rating | IP67 |
| Operating Temp. | –25 °C … +50 °C |
| Storage Temp. | –40 °C … +75 °C |
| Dimensions (W × H × D) | 7.7 × 27.5 × 13.5 mm |
| Weight | ~34 g |
📌 Key Features
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Background suppression detection (no reflector needed).
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PinPoint LED for precise sensing with well‑defined light spot.
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Adjustable detection distance via potentiometer.
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Fast switching (800 Hz) for dynamic automation tasks.
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IP67 rugged housing for resisting dust and moisture.
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