Product Model
WTB9L-3N3491

Key Features
- 1Precise detection of small objects and object features.
- 2Reliable performance with advanced laser technology.
- 3Robust VISTAL™ housing for stable operation and reduced machine downtime.
- 4Longest sensing ranges in its class with best-in-class background suppression.
- 5Highly visible light spot simplifies alignment and ensures accurate detection.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Functional principle | Photoelectric proximity sensor | Functional principle detail | Background suppression |
| Dimensions (W x H x D) | 12.2 mm x 50 mm x 23.6 mm | Housing design (light emission) | Rectangular |
| Mounting hole | M3 | Sensing range max. | 25 mm ... 400 mm |
| Sensing range | 25 mm ... 400 mm | Type of light | Visible red light |
| Light source | Laser | Light spot size (distance) | Ø 0.9 mm (230 mm) |
| Wave length | 650 nm | Laser class | 2 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.11) |
| Adjustment | Potentiometer, 5 turns | Special applications | Detecting small objects |
| Supply voltage UB | 10 V DC ... 30 V DC | Ripple | < 5 V |
| Current consumption | 30 mA | Switching output | NPN |
| Output function | Complementary | Switching mode | Light/dark switching |
| Output current Imax. | ≤ 100 mA | Response time | ≤ 1 ms |
| Switching frequency | 500 Hz | Connection type | Cable with M12 male connector, 4-pin, 120 mm |
| Cable material | Plastic, PVC | Conductor cross section | 0.14 mm² |
| Circuit protection | A8)#!#B9)#!#C10) | Protection class | III |
| Weight | 80 g | Housing material | Plastic, VISTAL® |
| Optics material | Plastic, PMMA | Enclosure rating | IP66#!#IP67#!#IP69K |
| Ambient operating temperature | –10 °C ... +50 °C | Ambient operating temperature extended | –30 °C ... +55 °C |
| Ambient temperature, storage | –30 °C ... +70 °C | UL File No. | NRKH.E181493 |
Specifications may be subject to change without notice
