Wenglor HW11PA3 Electronic Background Suppression
Wenglor HW11PA3 is an electronic background suppression sensor with 120 mm sensing range and 600 Hz switching frequency. The HW11PA3 belongs to the PK Series and is part of the Wenglor Photoelectric Sensor range for industrial automation in India. It features 35–120 mm setting range, <5% switching hysteresis, 10–30 V DC supply, 833 µs response time, PNP NC and PNP NO outputs, M12 × 1; 4-pin connection, stainless steel V2A (1.4305 / 303) and plastic PBT housing, IP67 protection, <30 mA current consumption at 24 V DC, and 39 g weight.

| Brand | Wenglor |
| Product Type | Photoelectric Sensor |
| Model Number | HW11PA3 |
Wenglor HW11PA3 Electronic Background Suppression - Technical Specifications
| Specification | Value |
|---|---|
| Range | 120 mm |
| Setting Range | 35 ... 120 mm |
| Switching Hysteresis | < 5 % |
| Light Source | Red Light |
| Max. Ambient Light | 10,000 Lux |
| Supply voltage | 10 ... 30 V DC |
| Supply voltage with IO Link | - |
| Current Consumption (Ub = 24 V) | < 30 mA |
| Switching Frequency | 600 Hz |
| Switching Frequency (interference-free mode) | - |
| Response time (interference-free mode) | - |
| Response Time | 833 µs |
| Temperature Range | -25 ... 60 °C |
| Switching Output Voltage Drop | < 2.5 V |
| Switching Output/Switching Current | 200 mA |
| Interface | - |
| Setting Method | Potentiometer |
| Housing Material | Stainless steel, V2A (1.4305 / 303) Plastic, PBT |
| Connection | M12 × 1; 4-pin |
| Output | PNP NC, PNP NO |
| Circuit | NC, NC+NO, NO |
| Optic Cover | - |
| Degree of Protection | IP67 |
| Weight | 39 g |
The HW11PA3 Wenglor Electronic Background Suppression device provides detection up to 120 mm sensing range in industrial automation systems. It operates on 10–30 V DC supply and delivers 600 Hz switching frequency with 833 µs response time. As part of the PK Series, this model supports PNP NC and PNP NO outputs. The HW11PA3 Wenglor Electronic Background Suppression sensor ensures controlled object detection with defined hysteresis below 5%.
In conveyor systems, packaging equipment, assembly lines, and automated machinery, the HW11PA3 enables precise detection within its 35–120 mm adjustable range. Electronic background suppression helps maintain stable sensing even when background surfaces are present. With IP67 protection and combined stainless steel V2A and PBT housing, it withstands dust, vibration, and moisture in Indian industrial environments.
The HW11PA3 from Wenglor maintains electrical efficiency with less than 30 mA current consumption at 24 V DC. As a PK Series device, it integrates into PLC-based control architectures using standard M12 connectivity. The HW11PA3 Wenglor Electronic Background Suppression sensor provides reliable detection performance for engineers requiring stable switching response and durable housing construction in industrial automation applications.





