Leuze KRTM 20M/P-20-3320-S12 Contrast Sensor
Leuze KRTM 20M/P-20-3320-S12 contrast sensor provides 20 mm operating range, RGB LED light, and PNP transistor output. Manufactured by Leuze, this Leuze Contrast Sensor belongs to the KRT Series and supports 20 mm ± 2 mm operating range, RGB LED light source, PNP transistor switching output, 50,000 Hz switching frequency, 12–30 V DC supply, stainless steel housing, and IP67/IP69K protection.
| Brand | Leuze |
| Product Type | Contrast Sensor |
| Product | KRTM 20M/P-20-3320-S12 |
Leuze KRTM 20M/P-20-3320-S12 Contrast Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cubic |
| Dimension (W x H x L) | 30 mm x 80 mm x 53 mm |
| Special version | Autocollimation Synchronization input Time function |
| Operating range | 20 mm ± 2 mm |
| Beam path | - |
| Light Source | LED, RGB |
| Light spot size [at sensor distance] | - |
| Light spot orientation | in center |
| Type of light spot geometry | Round |
| Light beam exit | On face |
| Wavelength | - |
| Supply voltage UB | 12 ... 30 V, DC |
| Number of teach inputs | 1 Piece(s) |
| Number of digital switching outputs | 1 Piece(s) |
| Switching output | Transistor, PNP |
| Switching principle | Light/dark switchable |
| Switching frequency | 50,000 Hz |
| Response time | - |
| Con:1 Function | - |
| Type of connection | Connector |
| Thread size | M12 |
| Type | - |
| Material | Stainless steel |
| No. of pins | 5-pin |
| Housing material | Metal |
| Housing color | - |
| Type of fastening | - |
| Type of display | LED |
| Operational controls | Membrane keyboard |
| Ambient temperature, operation | -25 ... 60 °C |
| Ambient temperature, storage | - |
| Degree of protection | IP 67 IP 69K |
The KRTM 20M/P-20-3320-S12 Leuze 20mm Transistor PNP Contrast Sensor is designed for accurate contrast detection in industrial automation systems. The KRTM 20M/P-20-3320-S12 operates with a 20 mm operating range, RGB LED light source, PNP transistor output, and 50,000 Hz switching frequency. It belongs to the KRT Series and is used where stable detection of print marks and surface contrast is required.
This contrast sensor is commonly applied in packaging machinery, conveyor systems, labeling equipment, and automated assembly lines. Its high switching frequency supports reliable detection on fast-moving materials, while autocollimation and synchronization input functions help maintain signal stability. The stainless steel housing provides mechanical strength and resistance in demanding industrial environments.
The KRTM 20M/P-20-3320-S12 reflects Leuze’s focus on dependable contrast sensing technology. With IP67/IP69K protection, robust construction, and consistent optical performance, it is suitable for continuous operation in industrial applications. As part of the Leuze KRT Series, it delivers precise and reliable contrast detection for modern automation systems.
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