If you’re not fully sure about WTB4FT-22161120A00, taking a closer look at Sick Laser Sensor, Sick Gtb6 P4211 and P&F Photoelectric Sensor often helps compare reliability, cost, and availability.
Sick WTB4FT-22161120A00 Photoelectric Sensor
The Sick WTB4FT-22161120A00 Photoelectric Sensor offers a Background suppression, DoubleLine, Rectangular design, 7 mm sensing range, PinPoint LED light source, Push-pull: PNP/NPN output, and Male connector M8, 4-pin connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the W4 Series.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WTB4FT-22161120A00 |
Sick WTB4FT-22161120A00 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression, DoubleLine |
| Sensing range min. | 7 mm |
| Sensing range max. | 120 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Shape of light spot | Line-shaped, two parallel line-shaped light spots |
| Light spot size (distance) | 1.2 mm x 17 mm (50 mm) |
| Wave length | 635 nm |
| Smallest detectable object (MDO) typ. | 0.1 mm (At 50 mm distance (object with 90% remission (complies with standard white according to DIN 5033))) |
| Adjustment | Teach-Turn adjustment, IO-Link |
| Special applications | Detecting flat objects, Detecting objects wrapped in film, Detecting perforated objects, Detecting uneven, shiny objects |
| Indication | LED blue, LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC 1) |
| Ripple | < 5 Vpp |
| Usage category | DC-12 (According to EN 60947-5-2) DC-13 (According to EN 60947-5-2) |
| Current consumption | ≤ 25 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital output Number | 2 (Complementary) |
| Output type | Push-pull: PNP/NPN |
| Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
| Signal voltage NPN HIGH/LOW | Approx. UB / < 2.5 V |
| Output current Imax. | ≤ 100 mA |
| Circuit protection outputs | Reverse polarity protected Overcurrent protected Short-circuit protected |
| Response time | ≤ 1,000 µs 2) |
| Switching frequency | 500 Hz 3) |
| Housing | Rectangular |
| Design detail | Flat |
| Dimensions (W x H x D) | 16 mm x 40.1 mm x 12.1 mm |
| Connection | Male connector M8, 4-pin |
| Conductor size | - |
| Cable diameter | - |
| Length of cable (L) | - |
| Cable | - |
| Housing material | Plastic, VISTAL® |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66 (EN 60529), IP67 (EN 60529) |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
The Sick WTB4FT-22161120A00 Photoelectric Sensor features an innovative DoubleLine detection system with background suppression and a PinPoint LED that emits two parallel red light lines, each measuring 1.2 mm x 17 mm at a 50 mm sensing distance. This advanced light pattern enables it to detect even the smallest object of 0.1 mm with exceptional stability, making it ideal for materials that are thin, shiny, perforated, or wrapped in transparent film. With a sensing range of 7 mm to 120 mm and a defined operating range of up to 100 mm, it delivers highly accurate detection across a broad spectrum of industrial applications.
The WTB4FT-22161120A00 is designed with a flat rectangular housing (16 mm x 40.1 mm x 12.1 mm) and an M8, 4-pin male connector for seamless integration into compact machine designs. Operating on a wide 10–30 V DC supply, it supports push-pull outputs (PNP/NPN) and includes 2 complementary digital outputs for flexible signal handling. Its switching frequency of 500 Hz and response time ≤ 1,000 µs allow it to keep up with high-speed automation lines without signal loss or lag. The sensor is also equipped with Teach-Turn adjustment and IO-Link capability for remote configuration, parameter cloning, and diagnostics in smart factory setups.
Its housing, made from VISTAL® plastic with a PMMA front screen, ensures long-term resistance to dust, vibration, and light mechanical stress. Rated IP66 and IP67, and operable from –40 °C to +60 °C, this sensor performs reliably in cold storage, food processing, or rugged outdoor environments.
The Photoelectric Sensor model WTB4FT-22161120A00 is perfectly suited for Indian industries requiring high-accuracy detection of non-uniform or hard-to-detect materials. In packaging and FMCG units, it excels at sensing transparent bottles, foil pouches, and glossy cartons, even when surfaces are uneven or reflective. In print and labeling systems, the DoubleLine feature ensures consistent detection of perforated sheets or shrink-wrapped items.
Its slim housing and IO-Link support make it easy to integrate into modern machinery or retrofit into legacy systems. Maintenance teams benefit from the intuitive Teach-Turn setup and real-time status indicators (LED blue, green, and yellow), while automation engineers value its fast switching and reliable rejection of background interference. The push-pull output allows flexible wiring with both PNP and NPN logic—reducing inventory complexity.
Whether you're an OEM designing compact sensor arrays or a plant engineer optimizing high-speed object detection, the Sick WTB4FT-22161120A00 Photoelectric Sensor offers unmatched precision, flexibility, and robustness. For difficult-to-detect surfaces and materials, this is the go-to Photoelectric Sensor.
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