Product Model
WTB4SP-31312100ZZZ

Selling Points
- 1High Accuracy: Precise detection with a sensing range of 4 mm to 100 mm.
- 2Reliable Background Suppression: Minimizes false triggers for consistent performance.
- 3Visible Red Light Source: Uses PinPoint LED for clear visibility in various environments.
- 4Durable Housing Material: Constructed with VISTAL®, ensuring long-lasting durability.
- 5Easy Installation: Cable with connector M8, 3-pin, 110 mm for straightforward setup.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Functional principle | Photoelectric proximity sensor | Functional principle detail | Background suppression |
Sensing range_Sensing range min. | 4 mm | Sensing range_Sensing range max. | 100 mm |
Sensing range_Reference object | Object with 90% remission factor (complies with standard white according to DIN 5033) | Sensing range_Minimum distance between set sensing range and background (black 6% / white 90%) | 5 mm, at a distance of 100 mm |
Sensing range_Recommended sensing range for the best performance | 40 mm ... 100 mm | Emitted beam_Light source | PinPoint LED |
Emitted beam_Type of light | Visible red light | Emitted beam_Shape of light spot | Point-shaped |
Emitted beam_Light spot size (distance) | 4 mm (100 mm) | Emitted beam_Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle) | < +/- 1.5° (at Ta = +23 °C) |
Key LED figures_Normative reference | EN 62471:2008-09 | IEC 62471:2006, modified | Key LED figures_LED risk group marking | Free group |
Key LED figures_Wave length | 635 nm | Key LED figures_Average service life | 100,000 h at Ta= +25 °C |
Smallest detectable object (MDO) typ. | 0.2 mm (at a distance of 100 mm) | Smallest detectable object (MDO) typ. | Object with 90% remission factor (complies with standard white according to DIN 5033) |
Adjustment_None | – | Indication_LED blue | BluePilot: Alignment aid |
Indication_LED green | Operating indicatorStatic on: power on | Indication_LED yellow | Status of received light beamStatic on: object not presentStatic off: object presentFlashing: Below the 1.5 function reserve |
Special features | Fixed sensing range 100 mm | Supply voltage UB | 10 V DC ... 30 V DC |
Ripple | ≤ 5 V | Usage category | DC-12 (According to EN 60947-5-2)#!#DC-13 (According to EN 60947-5-2) |
Current consumption | ≤ 20 mA, without load. At U#!#= 24 V | Protection class | III |
Digital output_Number | 1 | Digital output_Type | Push-pull: PNP/NPN |
Digital output_Switching mode | Dark switching | Digital output_Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
Digital output_Signal voltage NPN HIGH/LOW | Approx. UB/ < 2.5 V | Digital output_Output current Imax. | ≤ 100 mA |
Digital output_Circuit protection outputs | Reverse polarity protected | Digital output | Overcurrent protected |
Digital output | Short-circuit protected | Digital output_Response time | ≤ 500 µs |
Digital output_Repeatability (response time) | 150 µs | Digital output_Switching frequency | 1,000 Hz |
Pin/Wire assignment_Function of pin 4/black (BK) | Digital output, dark switching, object present → output Ǭ LOW2) | Housing | Rectangular |
Design detail | Slim | Dimensions (W x H x D) | 12.1 mm x 41.9 mm x 18.6 mm |
Connection | Cable with connector M8, 3-pin, 110 mm | Connection detail_Deep-freeze property | Do not bend below 0 °C |
Connection detail_Conductor size | 0.14 mm² | Connection detail_Cable diameter | Ø 3.4 mm |
Connection detail_Length of cable (L) | 77 mm | Material_Housing | Plastic, VISTAL® |
Material_Front screen | Plastic, PMMA | Material_Cable | Plastic, PVC |
Material_Male connector | Plastic, VISTAL® | Maximum tightening torque of the fixing screws | 0.4 Nm |
Specifications may be subject to change without notice