Leuze KRTM 3B/6.1121-S8 Contrast Sensor
Leuze KRTM 3B/6.1121-S8 contrast sensor provides 14.5 mm operating range, RGB LED light, and push-pull transistor output switching capability. Manufactured by Leuze, this Leuze Contrast Sensor belongs to the KRT Series and supports 14.5 mm ± 2 mm operating range, RGB LED light source, push-pull transistor output, 10,000 Hz switching frequency, M8 male 4-pin connector, teach-button operation, and IP67 protection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRTM 3B/6.1121-S8 |
Leuze KRTM 3B/6.1121-S8 Contrast Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cubic |
| Dimension (W x H x L) | 11 mm x 32 mm x 17 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 6.5 mm |
| Light spot orientation | Vertical |
| Type of light spot geometry | Rectangular |
| Light beam exit | Front |
| Wavelength | - |
| Supply voltage UB | 10 ... 30 V, DC |
| Number of teach inputs | 1 Piece(s) |
| Number of digital switching outputs | 1 Piece(s) |
| Switching output | Transistor, Push-pull |
| Switching principle | Light switching (PNP)/dark switching (NPN) |
| Switching frequency | 10,000 Hz |
| Response time | - |
| Con:1 Function | - |
| Type of connection | Connector |
| Thread size | M8 |
| Type | Male |
| Material | Metal |
| No. of pins | 4-pin |
| Housing material | Plastic |
| Housing color | - |
| Type of fastening | - |
| Type of display | LED |
| Operational controls | Teach button |
| Ambient temperature, operation | -30 ... 55 °C |
| Ambient temperature, storage | - |
| Degree of protection | IP 67 |
The KRTM 3B/6.1121-S8 Leuze M8 Connector Male Type Contrast Sensor is designed for precise contrast detection in industrial automation environments. The KRTM 3B/6.1121-S8 operates using a 14.5 mm operating range, RGB LED light source, push-pull transistor output, and 10,000 Hz switching frequency. It belongs to the KRT Series and supports reliable sensing in compact machine designs.
This contrast sensor is used in conveyors, packaging machinery, labeling systems, and automated assembly equipment. Its focused beam path and rectangular light spot enable consistent contrast detection on printed marks and fast-moving materials. The M8 male connector supports quick installation and stable electrical connections in space-limited industrial setups.
The KRTM 3B/6.1121-S8 reflects Leuze’s emphasis on dependable sensor construction and operational stability. With IP67 protection, simple teach-button configuration, and consistent push-pull switching behavior, it is suitable for continuous industrial use. As part of the Leuze KRT Series, it provides reliable performance for automation tasks requiring accurate contrast recognition.
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