Leuze HT36/4 Photoelectric Sensor
Leuze HT36/4 Photoelectric Sensor offers 2.5 m sensing distance, PNP transistor output, and light switching principle for industrial automation applications. This Leuze Photoelectric Sensor uses the diffuse reflection principle with background suppression and belongs to the HT series with 10–30 V DC supply, 250 Hz switching frequency, 2 ms response time, 2 m PUR cable, IP67 protection, cubic plastic housing, red LED light source (645 nm), rectangular light spot, and -40 to 60 °C operating range.
| Brand | Leuze |
| Product Type | Photoelectric Sensor |
| Product | HT36/4 |
Leuze HT36/4 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Design | Cubic |
| Operating principle | Diffuse reflection principle with background suppression |
| Special version | - |
| Sensing Distance | 0.01 ... 2.5 m |
| Beam path | Focused |
| Light source | LED, Red |
| Wavelength | 645 nm |
| Type of light spot geometry | Rectangular |
| Supply voltage UB | 10 ... 30 V, DC, Incl. residual ripple |
| Switching Output 1 | Transistor, PNP |
| Switching principle | Light switching |
| Switching Output 2 | - |
| Switching principle | - |
| Switching frequency | 250 Hz |
| Response time | 2 ms |
| Function | Signal OUT Voltage supply |
| Type of connection | Cable |
| Cable length | 2,000 mm |
| Sheathing material | PUR |
| Cable color | Black |
| Number of conductors | 3 -wire |
| Wire cross section | 0.14 mm² |
| Dimension (W x H x L) | 20.5 mm x 76.3 mm x 44 mm |
| Housing material | Plastic |
| Lens cover material | Plastic / PMMA |
| Housing color | Black |
| Type of display | LED |
| Ambient temperature, operation | -40 ... 60 °C |
| Ambient temperature, storage | -40 ... 70 °C |
| Degree of protection | IP 67 |
HT36/4 is a Leuze PNP transistor output and light switching diffuse sensor designed for precise object detection in industrial automation environments. The Leuze HT36/4 Photoelectric Sensor provides 2.5 m sensing distance, PNP transistor output, light switching operation, and IP67 protection. It belongs to the HT series of Leuze optical sensors and operates on 10–30 V DC supply with 250 Hz switching frequency and 2 ms response time, ensuring stable and repeatable signal processing.
The HT36/4 is commonly used in conveyors, packaging machines, automated assembly lines, and material handling systems. Its diffuse reflection principle with background suppression enables reliable detection of objects without separate reflectors. The focused red LED beam and rectangular light spot geometry support accurate sensing across varying surfaces. The 2 m PUR cable and IP67 housing allow installation in environments exposed to dust, vibration, and moisture.
Leuze HT36/4 Photoelectric Sensor integrates core specifications required for industrial detection, including stable voltage supply, fast response, and consistent PNP switching output. As part of the HT series, it maintains compatibility with standard automation architectures in manufacturing facilities. Leuze ensures consistent optical performance and durable housing construction suitable for long-term industrial operation across Indian automation applications.

