Sick WTB27-3R2611 Photoelectric Sensor
The Sick WTB27-3R2611 Photoelectric Sensor is a high-quality photoelectric sensor from Sick, a global leader in industrial sensing and automation. Known for precision, reliability, and innovation, Sick products are trusted across manufacturing, logistics, and process industries.
| Brand | Sick |
| Product Type | Photoelectric Sensors |
| Product | WTB27-3R2611 |
Sick WTB27-3R2611 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Dimensions (W x H x D) | 24.6 mm x 80.6 mm x 54 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 30 mm ... 1,600 mm 1) |
| Sensing range | 100 mm ... 1,600 mm |
| Type of light | Infrared light |
| Light source | LED |
| Light spot size (distance) | Ø 25 mm (800 mm) |
| Wave length | 880 nm |
| Adjustment | Potentiometer |
| Supply voltage UB | 20 V AC/DC ... 250 V AC/DC 1) |
| Power consumption | ≤ 2.5 VA |
| Switching Output | Relay, electrically isolated 2) |
| Output function | Change-over contacts |
| Switching mode | Light/dark switching |
| Switching mode selector | Selectable via time delay selector switch |
| Switching current (switching voltage) | 4 A @ 250 V AC, 4 A @ 24 V DC, 0.125 A @ 250 V DC UL: 4 A @ 250 V AC, general use / 4 A @ 250 V AC, resistive (NO) / 3 A @ 250 V AC, resistive (NC) / 4 A @ 24 V DC, NO, general use / 3 A @ 24 V DC, NC, general use / R300 / B300 (NO contacts only) / 0 °C ... +60 °C |
| Response time | ≤ 10 ms |
| Switching frequency | 10 Hz 3) |
| Connection type | Male connector Q6, 6-pin, AC/UC-coded |
| Protection class | II 6) |
| Housing material | Plastic, ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP65 |
| Ambient operating temperature | –40 °C ... +60 °C 7) |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 120 g |
The WTB27-3R2611 Sick Photoelectric Proximity Sensor is a SICK photoelectric sensor for object detection in industrial automation. It provides a 30 mm to 1,600 mm sensing range, background suppression, an 880 nm infrared LED, and a 20 V AC/DC to 250 V AC/DC supply range. It belongs to the SICK photoelectric sensor series and uses an SPDT relay output with adjustable light and dark switching.
The WTB27-3R2611 Sick Photoelectric Proximity Sensor can be applied on conveyors, packaging machines, assembly equipment, and automated production systems. Background suppression helps reduce unwanted switching caused by objects or backgrounds outside the intended detection point. Its adjustable sensing range, relay output, selectable ON/OFF time delay, and universal AC/DC supply provide practical flexibility when integrating the sensor into different industrial automation control systems.
SICK WTB27-3R2611, Part No. 1027763, combines infrared object detection, background suppression, SPDT relay switching, and a Q6 6-pin connection in an IP65 enclosure. The selectable time delay and adjustable light/dark switching provide additional control over sensor response in automated equipment. As part of the SICK photoelectric sensor range, the model is suited to industrial applications requiring defined sensing distances and relay-based switching.
