Autonics BW20-36P Area Sensor
The Autonics BW20-36P Area Sensor offers Through-beam type(direct beam) sensing, 0.1 to 7m 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 BW Series.

| Brand | Autonics |
| Product Type | Area Sensor |
| Model Number | BW20-36P |
Autonics BW20-36P Area Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing type | Through-beam type(direct beam) |
| Sensing distance | 0.1 to 7m |
| Light source | Infrared LED(850nm modulated) |
| Optical axis pitch | 20mm |
| Number of optical axes | 36 |
| Power supply | 12-24VDC |
| Control output | PNP open collector |
| Operation mode | Light ON |
| Environment_Ambient illumination | Ambient light: Max. 10,000lx(receiver illumination) |
| Environment_Ambient temperature | -10 to 55β, storage: -20 to 60β |
| Connection type | Cable connector type(Γ5, 300mm, M12) |
| Protection structure | IP65 |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Min. sensing target | Opaque material of min. Γ30mm |
| Response time | Max. 10ms |
| Material | β’ Case: Aluminum, β’ Front cover, sensing part: Acrylic |
| Cable specification | Γ5mm, 4-wire, 300mm, M12 connector |
| Sensing height/Total length | 700/720mm |
| Accessories | Bracket A: 4, Bracket B: 4, Fixing bolt: 8 |
| Weight | BW20-48: Approx. 2.1kg(approx. 1.4kg) |
The Autonics BW20-36P General Purpose Area Sensor features a through-beam sensing type with a detection range from 0.1 to 7m, ensuring accurate object detection across wide areas. Its 36 optical axes with a 20mm pitch and infrared LED (850nm modulated) light source deliver stable performance even under ambient illumination up to 10,000 lux. The sensor operates on a 12β24VDC Β±10% power supply and offers a PNP open collector output with Light ON mode for easy integration with control systems.
Engineered for industrial durability, the BW20-36P uses an aluminum case with acrylic front cover, achieving an IP65 protection rating for dust and water resistance. The fast 10ms response time supports high-speed production lines, while the M12 cable connector ensures quick installation and maintenance. It can detect opaque objects as small as Γ30mm, making it ideal for precision applications. The sensor maintains reliability across -10 to 55Β°C operating temperatures, with a sensing height of 700mm and total length of 720mm, suitable for both compact and large-scale automation setups. For other Autonics sensor solutions, visit Autonics Sensors & Controllers.
The BW20-36P is ideal for conveyor line monitoring, packaging machine safety, and part detection in automated assembly stations. It enhances accuracy in pallet positioning, object counting, and multi-point inspection systems. Maintenance teams benefit from its quick installation and low upkeep needs, making it a dependable choice for various industrial environments. This performance and versatility make it a preferred choice for engineers working with the Autonics BW20-36P.




