Autonics BWP20-20P Area Sensor
The Autonics BWP20-20P Area Sensor offers Through-beam type(direct beam) sensing, 0.1 to 5m sensing distance, Infrared LED(850nm modulated) light source, 12-24VDC power supply , PNP open collector output. Manufactured by Autonics under the Autonics Area Sensor category, this model belongs to the Autonics BWP Series.

| Brand | Autonics |
| Product Type | Area Sensor |
| Model Number | BWP20-20P |
Autonics BWP20-20P Area Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing type | Through-beam type(direct beam) |
| Sensing distance | 0.1 to 5m |
| Light source | Infrared LED(850nm modulated) |
| Optical axis pitch | 20mm |
| Number of optical axes | 20 |
| Power supply | 12-24VDC |
| Control output | PNP open collector |
| Operation mode | Light ON/Dark ON(set by switch) |
| Environment_Ambient illumination | Sunlight: Max. 10,000lx(receiver illumination) |
| Environment_Ambient temperature | -10 to 55℃, storage: -20 to 60℃ |
| Connection type | Cable type(Ø3.5, 3m) |
| Protection structure | IP40 |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Min. sensing target | Opaque material of min. Ø30mm |
| Response time | Max. 6ms(frequency B selection is max. 7ms) |
| Material | Case: Polycarbonate/Acrylonitrile butadiene styrene, Sensing part: Polymethyl methacrylate |
| Cable specification | Ø3.5mm, 4-wire, 3m(emitter: Ø3.5mm, 4-wire, 3m)(AWG 24, core diameter: 0.08mm, number of cores: 40, insulator out diameter: Ø1mm) |
| Sensing height/Total length | 380/430mm |
| Weight | Approx. 680g(approx. 430g) |
The Autonics BWP20-20P operates with a through-beam sensing type and delivers a sensing range of 0.1 to 5 meters with a fast response time of 6ms. Utilizing an Infrared LED (850nm modulated) across 20 optical axes with a 20mm pitch, it ensures precise detection even in narrow or compact spaces. The sensor supports Light ON/Dark ON operation modes and features a PNP open collector output, offering flexible integration with diverse control systems.
Designed for reliability, the BWP20-20P runs on 12–24VDC ±10% and maintains consistent operation in temperatures from -10 to 55℃. Its polycarbonate/ABS case with polymethyl methacrylate sensing part provides durability, while the slim design and lightweight construction (~680g) make installation straightforward. The Ø3.5mm, 3m, 4-wire cable with M12 connector further simplifies connection and reduces setup time for maintenance teams.
Engineers rely on the BWP20-20P for stable performance in clean industrial environments and narrow-space setups. It’s perfect for OEMs, assembly lines, and inspection stations where repeatability and minimal maintenance are critical. Find more Autonics sensors and controllers for complementary solutions.
The BWP20-20P Slim Plastic Body Area Sensor is widely used in small packaging machines, automated conveyors, and inspection stations for part counting, position sensing, and object detection. Its slim body and flexible output options allow easy integration into existing machines without extensive modifications. This sensor is favored by maintenance engineers and OEMs for its low upkeep, high repeatability, and reliable operation in clean environments, making it a cornerstone for efficient industrial automation.




