Leuze KRT3CM.Q3S2/4T-M8 Contrast Sensor
The Leuze KRT3CM.Q3S2/4T-M8 contrast sensor provides 14.5 mm operating range, RGB LED light, and NPN 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 4-pin metal connector, IP67/IP69K protection, and teach input configuration for stable contrast detection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRT3CM.Q3S2/4T-M8 |
Leuze KRT3CM.Q3S2/4T-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] | 14.5 mm ± 2 mm |
| Light spot orientation | Horizontal |
| 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, NPN |
| 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.Q3S2/4T-M8 Leuze M8 4-pin Connection Contrast Sensor is an optical sensing device designed for contrast detection in industrial automation systems. This KRT3CM.Q3S2/4T-M8 model operates with a 14.5 mm operating range and uses an RGB LED light source supporting multi-color contrast evaluation. It provides a NPN transistor switching output and functions on a 12–30 V DC supply. As part of the KRT Series, this Leuze contrast sensor supports consistent signal processing in automated machinery.
In industrial environments, the KRT3CM.Q3S2/4T-M8 is installed on conveyors, packaging machines, labeling systems, and automated assembly equipment. It reliably detects contrast differences, printed marks, and surface variations on fast-moving materials. The focused beam path and horizontal light spot orientation support stable detection, while the defined switching behavior ensures dependable output during continuous automation operation.
The KRT3CM.Q3S2/4T-M8 reflects Leuze’s structured approach to contrast sensor engineering for industrial use. Its IP67 and IP69K protection ratings enable operation in harsh and washdown environments. With teach-button control, standardized M8 4-pin connectivity, and defined optical characteristics, this Leuze M8 4-pin Connection Contrast Sensor is suitable for long-term industrial automation applications requiring repeatable and reliable contrast detection.
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