Leuze KRTW 3B/6.1121-S8 Contrast Sensor
Leuze KRTW 3B/6.1121-S8 contrast sensor delivers 14.5 mm operating range, white LED illumination, and push-pull transistor switching output capability. Manufactured by Leuze, this Leuze Contrast Sensor belongs to the KRT Series and supports 14.5 mm ± 2 mm operating range, white LED light source, push-pull transistor output, 10,000 Hz switching frequency, M8 4-pin connector, teach button control, and IP67 protection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRTW 3B/6.1121-S8 |
Leuze KRTW 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, White |
| Light spot size [at sensor distance] | 1.5 mm x 4 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 | - |
| Material | Metal |
| No. of pins | 4-pin |
| Housing material | Plastic |
| Housing color | - |
| Type of fastening | - |
| Type of display | - |
| Operational controls | Teach button |
| Ambient temperature, operation | -30 ... 55 °C |
| Ambient temperature, storage | - |
| Degree of protection | IP 67 |
The KRTW 3B/6.1121-S8 Leuze Transistor, Push-pull Output Contrast Sensor is designed for precise contrast detection in industrial automation systems. The KRTW 3B/6.1121-S8 operates using a 14.5 mm operating range, white LED light source, push-pull transistor output, and 10,000 Hz switching frequency. It is part of the KRT Series and supports stable sensing in compact machine layouts.
This contrast sensor is used in conveyors, packaging machines, labeling systems, and automated assembly lines. Its focused beam path and rectangular light spot enable reliable contrast recognition on printed marks and materials. The plastic housing supports lightweight mounting while maintaining consistent electrical performance in standard industrial environments.
The KRTW 3B/6.1121-S8 reflects Leuze’s emphasis on dependable sensor design and operational stability. With IP67 protection, simple teach-button adjustment, and consistent push-pull output behavior, it is suitable for continuous industrial use. As a KRT Series contrast sensor, it provides reliable performance for automation tasks requiring accurate contrast detection.
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