Leuze KRT3CW.L3S1/4T-M8 Contrast Sensor
The Leuze KRT3CW.L3S1/4T-M8 contrast sensor uses 14.5 mm operating range, white LED light, and PNP switching 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 control for consistent contrast detection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRT3CW.L3S1/4T-M8 |
Leuze KRT3CW.L3S1/4T-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.L3S1/4T-M8 Leuze Cubic Design Contrast Sensor is a compact optical sensing device used for contrast-based detection in industrial automation systems. This 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 functions on a 12–30 V DC supply. As part of the KRT Series, the KRT3CW.L3S1/4T-M8 supports stable signal processing for automated machinery.
In practical applications, the KRT3CW.L3S1/4T-M8 contrast sensor is installed on conveyors, packaging machines, labeling systems, and automated assembly lines. It reliably detects printed marks, contrast differences, and surface variations on fast-moving materials. The high switching frequency and short response time help maintain consistent output signals during high-speed operation, while the focused beam path and front light exit simplify installation in compact industrial automation environments.
The KRT3CW.L3S1/4T-M8 reflects Leuze’s structured approach to contrast sensor design, combining defined optical performance with durable construction. Its IP67 and IP69K protection ratings allow operation in harsh industrial conditions, including washdown zones. With controlled teach input configuration, stable electrical characteristics, and standardized M8 connectivity, this Leuze Cubic Design Contrast Sensor is suitable for long-term industrial automation use where repeatable contrast detection is required.
Related Products
