WFE-120120B337: 1106557 - Sick 120 mm Fork Sensor

| Brand | Sick |
| Product Type | Fork Sensor |
| Model Number | WFE-120120B337 |
Sick 120 mm Fork Sensor WFE-120120B337, 1106557 Technical Specifications:
| Specification | Value |
|---|---|
| Functional principle | Fork sensor |
| Dimensions (W x H x D) | 10 mm x 149.3 mm x 143 mm |
| Fork width | 120 mm |
| Fork depth | 120 mm |
| Minimum detectable object (MDO) | 0.5 mm |
| Light Source | - |
| Adjustment | Potentiometer, light/dark switching |
| Current consumption | < 30 mA 1) |
| Switching frequency | 5 kHz |
| Stability of response time | ± 20 µs |
| Switching output | Push-pull: PNP/NPN |
| Switching output (voltage) | Push-pull: PNP/NPN High = UV - < 2 V/Low: ≤ 2 V |
| Switching mode | Light/dark switching |
| Switching output hysteresis | < 0.2 mm |
| Output current Imax. | 100 mA |
| Initialization time | 100 ms |
| Connection type | Connector M8, 3-pin |
| Protection class | III |
| Circuit protection | UV connections, reverse polarity protected, Output Q short-circuit protected, Interference pulse suppression |
| Enclosure rating | IP67 |
| Housing material | Plastic, ABS, Coated carbon steel (frame) |
The WFE-120120B337 Sick 120 mm Fork Sensor is a fixed-gap optical fork sensor designed for precise object detection in industrial automation systems. This model offers a 120 mm fork width, 0.5 mm minimum detectable object, and a 5 kHz switching frequency to ensure consistent detection at high machine speeds. The WFE-120120B337 belongs to the WFE series from Sick and uses a push-pull PNP/NPN output suitable for standard control circuits.
In practical applications, the WFE-120120B337 Sick 120 mm Fork Sensor is used in conveyors, packaging machines, labeling systems, and automated assembly lines. The fork design allows reliable detection of thin objects, edges, or passing parts without complex alignment. Stable response time and light/dark switching help maintain accurate signal output even during continuous operation in fast-moving production environments.
The WFE-120120B337 from Sick combines defined fork geometry, protected circuitry, and IP67 housing for dependable industrial use. With controlled output current, short-circuit protection, and M8 connector interface, this fork sensor supports long-term operation in automated equipment. Its specifications and series alignment make the Sick WFE-120120B337 a technically reliable fork sensor choice for industrial automation applications.




