Leuze KRTW 3B/6.1321-S8 Contrast Sensor
Leuze KRTW 3B/6.1321-S8 contrast sensor offers 14.5 mm operating range with white LED light and push-pull output switching 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 operation, and IP67 protection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRTW 3B/6.1321-S8 |
Leuze KRTW 3B/6.1321-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/6.1321-S8 Leuze Plastic Housing Material Contrast Sensor is built for reliable contrast detection in industrial automation systems. The KRTW 3B/6.1321-S8 operates with a 14.5 mm operating range, white LED light source, push-pull transistor output, and 10,000 Hz switching frequency. It belongs to the KRT Series and is used in space-constrained sensing applications.
This contrast sensor is commonly applied in conveyors, packaging equipment, labeling machines, and automated assembly processes. Its focused beam path and rectangular light spot allow consistent detection of contrast marks on fast-moving materials. The plastic housing design supports lightweight installation while maintaining stable electrical performance in standard industrial environments.
The KRTW 3B/6.1321-S8 represents Leuze’s focus on dependable sensing and functional durability. With IP67 protection, stable push-pull output behavior, and simple teach-button configuration, it is suitable for continuous industrial operation. As part of the Leuze KRT Series, it delivers consistent contrast detection performance for automation tasks requiring accuracy and reliability.
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