Leuze KRT3CW.L3S2/4T-M8 Contrast Sensor
The Leuze KRT3CW.L3S2/4T-M8 contrast sensor provides 14.5 mm operating range, white LED light, and PNP transistor output for industrial automation. Manufactured by Leuze, this Leuze Contrast Sensor belongs to the KRT Series and supports 10,000 Hz switching frequency, 0.05 ms response time, 12–30 V DC supply, focused beam optics, M8 metal connector, IP67/IP69K protection, and teach input configuration for stable contrast detection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRT3CW.L3S2/4T-M8 |
Leuze KRT3CW.L3S2/4T-M8 Contrast Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cubic |
| Dimension (W x H x L) | 11.4 mm x 34.2 mm x 18.3 mm |
| Special version | Teach input Time function |
| Operating range | 14.5 mm ± 2 mm |
| Beam path | Focused |
| Light Source | LED, White |
| Light spot size [at sensor distance] | 1.5 mm x 4 mm [14.5 mm] |
| Light spot orientation | Vertical |
| Type of light spot geometry | Rectangular |
| Light beam exit | Front |
| Wavelength | 400 ... 750 nm |
| Supply voltage UB | 12 ... 30 V, DC, Incl. residual ripple |
| Number of teach inputs | 1 Piece(s) |
| Number of digital switching outputs | 1 Piece(s) |
| Switching output | Transistor, PNP |
| Switching principle | Light switching |
| Switching frequency | 10,000 Hz |
| Response time | 0.05 ms |
| Con:1 Function | Signal OUT Teach input Voltage supply |
| Type of connection | Connector |
| Thread size | M8 |
| Type | Male |
| Material | Metal |
| No. of pins | 4 -pin |
| Housing material | Plastic |
| Housing color | Red |
| Type of fastening | Via optional mounting device |
| Type of display | LED |
| Operational controls | Teach button |
| Ambient temperature, operation | -40 ... 60 °C |
| Ambient temperature, storage | -40 ... 70 °C |
| Degree of protection | IP 67 IP 69K |
The KRT3CW.L3S2/4T-M8 Leuze Transistor PNP Output Contrast Sensor is a compact optical sensing device used for contrast detection in industrial automation systems. This KRT3CW.L3S2/4T-M8 model operates with a 14.5 mm operating range and uses a focused white LED light source with rectangular light spot geometry. It provides a PNP transistor switching output and operates on a 12–30 V DC supply. As part of the KRT Series, this Leuze contrast sensor supports reliable signal processing in automated machinery.
In industrial environments, the KRT3CW.L3S2/4T-M8 contrast sensor is installed on conveyors, packaging machines, labeling equipment, and automated assembly lines. It detects contrast marks, printed references, and surface variations on fast-moving materials with consistent output behavior. The high switching frequency and short response time help maintain detection accuracy at high speeds, while the focused beam path and front light exit allow precise installation in compact automation layouts.
The KRT3CW.L3S2/4T-M8 reflects Leuze’s structured contrast sensor design for industrial use. Its IP67 and IP69K protection ratings support operation in demanding environments, including washdown conditions. With teach-button control, defined optical characteristics, and standardized M8 connectivity, this Leuze Transistor PNP Output Contrast Sensor is suitable for long-term industrial automation applications requiring repeatable and stable contrast detection.
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