SICK WTB4FP-21311120ZZZ W4 Photoelectric Sensor
The SICK WTB4FP-21311120ZZZ is a W4 miniature photoelectric sensor with background suppression and a 4–220 mm sensing range. It features push-pull PNP/NPN output for object detection in industrial automation and material-handling applications.
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- US$ 165.10
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Description
SICK WTB4FP-21311120ZZZ
W4 Miniature Photoelectric Sensor | Background Suppression | 4–220 mm Sensing Range | Push-Pull PNP/NPN Output
Product Detailed Description
The SICK WTB4FP-21311120ZZZ is a W4 series miniature photoelectric proximity sensor designed for reliable object detection in industrial automation. It uses background suppression to detect objects at distances from 4 mm to 220 mm while reducing the influence of background surfaces. The adjustable switching threshold is 15–220 mm, and the recommended sensing range for best performance is 40–140 mm. The sensor uses a visible red PinPoint LED with a 635 nm wavelength. It supports push-pull PNP/NPN output, operates on 10–30 V DC, and provides a 500 μs response time with a switching frequency of up to 1,000 Hz. Its compact VISTAL® plastic housing and IP66/IP67 protection make it suitable for a range of industrial sensing applications.
Technical Specifications
| Parameter | Details |
| Brand | SICK |
| Model | WTB4FP-21311120ZZZ |
| Manufacturer Part Number | 1222999 |
| Product Type | Miniature Photoelectric Proximity Sensor |
| Product Series | W4 |
| Detection Principle | Background Suppression |
| Sensing Range | 4–220 mm |
| Adjustable Switching Threshold | 15–220 mm |
| Recommended Sensing Range | 40–140 mm |
| Light Source | PinPoint LED, visible red light |
| Wavelength | 635 nm |
| Supply Voltage | 10–30 V DC |
| Output Type | Push-pull PNP/NPN |
| Switching Mode | Light switching |
| Maximum Output Current | 100 mA |
| Response Time | 500 μs |
| Switching Frequency | 1,000 Hz |
| Electrical Connection | 3-pin M8 connector |
| Housing Material | VISTAL® plastic |
| Protection Rating | IP66 / IP67 |
| Operating Temperature | −40°C to +60°C |
| Dimensions (W × H × D) | 16 × 40.1 × 12.1 mm |
| Net Weight | Approx. 30 g; confirm with supplier |
| Country of Origin | Germany indicated by distributor data; verify for the supplied unit |
| Replacement Model | No direct replacement confirmed |
This item is listed for catalogue and inquiry purposes. Availability, condition, revision, warranty coverage, and lead time are confirmed with each quotation.
New Surplus: All items are genuine brand-new, distributor ready-stock supplying. Please inform us if you have any inquiry or demand.
Important Application Note
The actual sensing performance depends on target size, surface reflectivity, background conditions, and mounting distance. Confirm the connector pinout and output compatibility before replacing an existing sensor.
Applications
| Industrial Automation & Control | Machinery & Equipment |
| • PLC-based object detection | • Packaging machinery |
| • Automated presence detection | • Conveyor systems |
| • Sensor-based switching | • Assembly equipment |
| • Production line monitoring | • Sorting machinery |
| • Industrial control systems | • Material handling equipment |
| Power & Electrical Systems | Industrial Applications |
| • Machine control circuits | • Factory automation |
| • Control cabinet interfaces | • Product presence verification |
| • Industrial sensor networks | • Component positioning |
| • Automated equipment interfaces | • Packaging and labeling lines |
| • PLC input signal systems | • Manufacturing quality control |
Additional information
| Warranty : | 12 Month |
|---|---|
| Lead Time : | Ready Stock |







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