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Sick WTB4FP-22161120A00 Photoelectric Sensor
The Sick WTB4FP-22161120A00 Photoelectric Sensor offers a Background suppression, Rectangular design, 4 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 | WTB4FP-22161120A00 |
Sick WTB4FP-22161120A00 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range min. | 4 mm |
| Sensing range max. | 220 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Shape of light spot | Point-shaped |
| Light spot size (distance) | Ø 4.2 mm (130 mm) |
| Wave length | 635 nm |
| Smallest detectable object (MDO) typ. | 0.2 mm (At 130 mm distance (object with 90% remission (complies with standard white according to DIN 5033))) |
| Adjustment | Teach-Turn adjustment, IO-Link |
| Special applications | - |
| 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 | ≤ 500 µs 2) |
| Switching frequency | 1,000 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 WTB4FP-22161120A00 Photoelectric Sensor from SICK combines cutting-edge optical performance with rugged industrial reliability. Equipped with a PinPoint LED emitting visible red light at 635 nm, it delivers a precise point-shaped light spot of Ø 4.2 mm at a 130 mm distance. This enables the sensor to detect minuscule objects as small as 0.2 mm, even against reflective or uneven backgrounds. The sensing range spans from 4 mm to 220 mm, powered by a dependable background suppression system that ensures consistent object recognition regardless of background color or reflectivity.
The sensor supports Teach-Turn adjustment and IO-Link communication, providing flexible integration into modern PLC-controlled systems. Operating at 10–30 V DC with a low power consumption of ≤ 25 mA, the WTB4FP-22161120A00 offers two complementary push-pull outputs (PNP/NPN) with fast switching at 1,000 Hz and a ≤ 500 µs response time. Built-in protections against reverse polarity, overcurrent, and short circuits ensure robust and fail-safe operation.
The SICK WTB4FP-22161120A00 Photoelectric Sensor is widely used in automated production lines where accurate part presence detection is critical. Its ability to detect objects as small as 0.2 mm makes it a trusted choice for assembly verification, transparent film detection, and edge guiding in packaging lines. Engineers often prefer this model when space is limited but high performance is non-negotiable.
In electronic component handling, this photoelectric sensor ensures no-parts-missed accuracy even in tight pick-and-place systems. With its fast 1,000 Hz switching and background suppression, it eliminates false triggering caused by reflective machine parts or conveyor belts. Its rugged design and high ingress protection make it suitable for dusty, humid, or vibration-prone environments found in automotive or FMCG industries.
Whether you're an MNC process engineer or a maintenance supervisor in a mid-size factory, the WTB4FP-22161120A00 Photoelectric Sensor gives you peace of mind with its plug-and-play M8 connection, clear LED indicators, and long-term reliability. If you're specifying sensors for a high-speed machine or retrofitting legacy lines, this model helps maintain throughput and reduce downtime. That’s why the SICK WTB4FP-22161120A00 Photoelectric Sensor is trusted by automation professionals across India.
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