Sick GTB6-N4211 Photoelectric Sensor
The Sick GTB6-N4211 photoelectric sensor provides background suppression, 250 mm sensing range, and NPN output for industrial automation applications. This Sick Mechanical Spindle Photoelectric Sensor uses visible red 650 nm PinPoint LED, supports 10–30 V DC supply, offers 1,000 Hz switching frequency, and includes mechanical spindle adjustment with IP67 rectangular housing. It is part of Sick sensing solutions, listed under Sick Photoelectric Sensors, and belongs to the G6 Series used in industrial automation systems.
| Brand | Sick |
| Product Type | Photoelectric Sensors |
| Model Number | GTB6-N4211 |
Sick GTB6-N4211 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 5 mm ... 250 mm |
| Sensing range | 35 mm ... 140 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 6 mm (100 mm) |
| Wave length | 650 nm |
| Adjustment | Mechanical spindle, 5 turns |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | ± 10 % |
| Current consumption | 30 mA 3) |
| Protection class | III |
| Digital Output type | NPN |
| Switching mode | Light/dark switching |
| Switching mode selector | Selectable via light/dark selector |
| Signal voltage PNP HIGH/LOW | Approx. VS / ≤ 3 V |
| Output current Imax. | ≤ 100 mA 4) |
| Response time | < 625 µs 5) |
| Switching frequency | 1,000 Hz 6) |
| Housing | Rectangular |
| Dimensions (W x H x D) | 12 mm x 31.5 mm x 21 mm |
| Connection | Male connector M8, 4-pin |
| Housing material | Plastic, ABS/PC |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Ambient operating temperature | –25 °C ... +55 °C |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | 20 g |
The GTB6-N4211 Sick Mechanical Spindle Photoelectric Sensor is a rectangular photoelectric sensor designed for precise object detection in industrial automation. The GTB6-N4211 operates with background suppression and a 35–140 mm sensing range, extending up to 250 mm maximum distance. It uses a visible red 650 nm LED and provides a NPN digital output while operating on 10–30 V DC supply. This model belongs to the G6 series and is widely used in structured automation environments.
The GTB6-N4211 Sick Mechanical Spindle Photoelectric Sensor is applied in conveyors, packaging machines, automated assembly lines, and material handling systems. Its background suppression principle enables reliable detection while minimizing false triggering from reflective surfaces. The mechanical spindle allows precise sensitivity adjustment during installation, and the stable NPN output ensures consistent signal transfer to PLC and control systems. The fast response time supports continuous operation in high-speed industrial processes.
The Sick GTB6-N4211 Photoelectric Sensor delivers dependable performance through its IP67-rated enclosure, defined optical characteristics, and mechanical spindle-based adjustment. Standardized M8 connectivity, controlled sensing distance, and stable electrical output support long-term integration. As part of Sick’s industrial sensing portfolio, the GTB6-N4211 is suitable for industrial automation environments requiring consistent detection, electrical reliability, and environmental resistance.
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