Leuze KRT3CM.L3D2/4T-M8 Contrast Sensor
The Leuze KRT3CM.L3D2/4T-M8 contrast sensor uses 14.5 mm operating range, RGB LED light, and PNP transistor output signals reliably. Manufactured by Leuze, this Leuze Contrast Sensor belongs to the KRT Series and supports 10,000 Hz switching frequency, 300 ms response time, 12–30 V DC supply, focused beam optics, M8 metal connector, IP67/IP69K protection, and Signal OUT teach input configuration for industrial contrast detection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRT3CM.L3D2/4T-M8 |
Leuze KRT3CM.L3D2/4T-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, RGB |
| 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 | B: 470 nm G: 525 nm R: 640 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 | 300 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 KRT3CM.L3D2/4T-M8 Leuze Signal Out Function Contrast Sensor is an optical sensing device designed for contrast detection in industrial automation systems. This KRT3CM.L3D2/4T-M8 model operates with a 14.5 mm operating range and an RGB LED light source supporting multi-color contrast evaluation. 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 stable signal processing in automated equipment.
In industrial applications, the KRT3CM.L3D2/4T-M8 is installed on conveyors, packaging machines, sorting systems, and automated assembly lines. It reliably detects contrast differences, printed marks, and surface variations on fast-moving materials. The focused beam path and stable RGB illumination help maintain detection accuracy, while consistent switching behavior supports dependable output in continuous automation processes.
The KRT3CM.L3D2/4T-M8 reflects Leuze’s structured approach to contrast sensor design for industrial environments. Its IP67 and IP69K protection ratings enable operation in harsh and washdown conditions. With defined Signal OUT functionality, teach-button control, standardized M8 connectivity, and stable electrical characteristics, this Leuze Signal Out Function Contrast Sensor is suitable for long-term industrial automation applications requiring repeatable and reliable contrast detection.
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