Sick WF120-40B410 Fork Sensor
The Sick WF120-40B410 Fork Sensor provides 120 mm fork width, 0.2 mm minimum detectable object, and optical detection precision capability. The WF120-40B410 Sick Fork Sensor features PNP/NPN switching output up to 100 mA, 40 mA current consumption, light/dark switching, M8 4-pin connector, IP65 aluminum housing, and belongs to the Sick Fork Sensor WFE series.

| Brand | Sick |
| Product Type | Fork Sensor |
| Model Number | WF120-40B410 |
Sick WF120-40B410 Fork Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 10 mm x 150 mm x 57 mm |
| Fork width | 120 mm |
| Fork depth | 42 mm |
| Minimum detectable object (MDO) | 0.2 mm |
| Adjustment | Plus/minus button (Sensitivity, light/dark switching, key lock) |
| Current consumption | 40 mA |
| Switching output | PNP/NPN |
| Switching output (voltage) | PNP: HIGH = UV ≤ 2 V / LOW approx. 0 VNPN: HIGH = approx. UV / LOW ≤ 2 V |
| Switching mode | Light/dark switching |
| Output current Imax. | 100 mA |
| Connection type | Male connector M8, 4-pin |
| Circuit protection | UV connections, reverse polarity protectedOutput Q short-circuit protectedInterference pulse suppression |
| Enclosure rating | IP65 |
| Weight | Approx. 36 g ... 160 g 1) |
| Housing material | Aluminum |
| Functional principle | Optical detection principle |
| Jitter | 40 µs |
The WF120-40B410 Sick Fork Sensor is designed for wide-format detection applications requiring 120 mm fork width and 0.2 mm minimum detectable object capability. This model offers PNP/NPN switching output with 100 mA output current and operates with 40 mA current consumption. WF120-40B410 belongs to the WFE series and supports light/dark switching for controlled optical detection in industrial automation.
In conveyor systems, packaging machinery, sheet monitoring, and assembly processes, the WF120-40B410 Sick Fork Sensor enables stable detection across larger fork openings. Plus/minus button adjustment allows sensitivity tuning and key lock configuration, while reverse polarity and short-circuit protection ensure secure electrical integration in control cabinets.
The Sick WF120-40B410 Fork Sensor integrates using its aluminum housing and M8 4-pin connector within automation panels. With IP65 enclosure rating and 40 µs jitter, the WF120-40B410 Sick Fork Sensor in the WFE series provides consistent switching performance for industrial automation applications across India.




