Sick WFS3-40B41CA70 Fork Sensor
The WFS3-40B41CA70 Sick Fork Sensor provides 3 mm fork width, 42 mm fork depth, and push-pull PNP/NPN output for label detection. This Sick WFS3-40B41CA70 Sick Fork Sensor detects 2 mm minimum label gaps, supports plus/minus button adjustment with cable, operates in light/dark switching mode, delivers 100 mA output current, uses male M8 4-pin connector, and features glass-fiber reinforced PA housing with integrated circuit protection.

| Brand | Sick |
| Product Type | Fork Sensor |
| Model Number | WFS3-40B41CA70 |
Sick WFS3-40B41CA70 Fork Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 10 mm x 25 mm x 64.3 mm |
| Fork width | 3 mm |
| Fork depth | 42 mm |
| Minimum detectable object (MDO) | Gap between Labels / Size of labels: 2 mm 1) |
| Adjustment | Plus/minus button, cable (Teach-in, sensitivity, light/dark switching, Teach-in dynamic) |
| Switching output | Push-pull: PNP/NPN |
| Switching output (voltage) | Push-pull: PNP/NPN High = UV - < 2 V/Low: β€ 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 |
| Weight | Approx. 36 g |
| Housing material | Plastic, PA (glass-fiber reinforced) |
The WFS3-40B41CA70 Sick Fork Sensor is designed for small-label and gap detection in industrial automation systems. The WFS3-40B41CA70 Sick Fork Sensor features 3 mm fork width, 42 mm fork depth, push-pull PNP/NPN output, and 2 mm minimum detectable object capability. It belongs to the WFE series and operates using an optical detection principle with plus/minus teach-in adjustment. This configuration supports stable signal transmission to PLC-based control systems.
In packaging machines, narrow web labeling equipment, and conveyor-based assembly lines, the WFS3-40B41CA70 ensures consistent detection of small label gaps. Light/dark switching allows flexible mounting orientation. The 100 mA output current enables direct interface with industrial controllers, while the M8 4-pin connector simplifies installation. Integrated reverse polarity and short-circuit protection contribute to operational reliability in electrically dynamic environments.
The WFS3-40B41CA70 Sick Fork Sensor combines compact fork geometry and push-pull output for precise sensing tasks. With dimensions of 10 mm x 25 mm x 64.3 mm and reinforced PA housing, this Sick Fork Sensor model WFS3-40B41CA70 integrates into compact automation assemblies. As part of the Sick sensing portfolio, it provides dependable performance for industrial packaging and material handling applications.




