Sick GRTB18S-N2412 Photoelectric Sensor
Sick GRTB18S-N2412 photoelectric sensor delivers background suppression with 150 mm range, NPN output, and IP67 metal housing industrial applications. This Sick Metal Photoelectric Sensor operates using visible red PinPoint LED at 650 nm wavelength, supports 10–30 V DC supply, and switches up to 1,000 Hz. It belongs to Sick sensing solutions, listed under Sick Photoelectric Sensors and the GR Series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Product | GRTB18S-N2412 |
Sick GRTB18S-N2412 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Dimensions (W x H x D) | 18 mm x 18 mm x 38.1 mm |
| Housing design (light emission) | Cylindrical |
| Thread diameter (housing) | M18 x 1 |
| Optical axis | Axial |
| Sensing range max. | 3 mm ... 300 mm |
| Sensing range | 20 mm ... 150 mm |
| Type of light | Visible red light |
| Light source | PinPoint LED |
| Light spot size (distance) | Ø 7 mm (100 mm) |
| Wave length | 650 nm |
| Adjustment | Potentiometer, 270° |
| Indication | LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 30 mA |
| Switching Output | NPN |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | Approx. VS / ≤ 3 V |
| Output current Imax. | ≤ 100 mA 3) |
| Response time | < 500 µs 4) |
| Switching frequency | 1,000 Hz 5) |
| Connection type | Male connector M12, 4-pin |
| Protection class | III |
| Housing material | Metal, Nickel-plated brass and ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Items supplied | Fastening nuts (2 x) |
| Ambient operating temperature | –25 °C ... +55 °C 9) |
| Ambient temperature, storage | –40 °C ... +70 °C |
The GRTB18S-N2412 Sick Metal Photoelectric Sensor is a background suppression proximity sensor designed for controlled short-range object detection. The GRTB18S-N2412 Sick Metal Photoelectric Sensor supports a 20–150 mm sensing range, stable NPN switching output, and regulated 30 mA current consumption. As part of the GR Series, it is engineered for compact M18 installations in industrial automation systems.
In practical applications, the GRTB18S-N2412 is used on conveyors, packaging machines, assembly stations, and automated handling equipment. Background suppression allows reliable object detection while ignoring reflective or moving backgrounds. The <500 µs response time and 1,000 Hz switching frequency ensure consistent output in fast process cycles, while the M12 connector simplifies electrical integration.
The GRTB18S-N2412 from Sick is designed for long-term reliability in industrial environments. Its IP67-rated metal housing, nickel-plated brass construction, and supplied fastening nuts support secure mounting and resistance to mechanical stress. As a GR Series photoelectric sensor, the GRTB18S-N2412 aligns with Sick industrial sensing standards and remains suitable for continuous automation use.
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