Autonics BW40-04P Area Sensor
The Autonics BW40-04P 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 | BW40-04P |
Autonics BW40-04P Area Sensor – 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 | 40mm |
| Number of optical axes | 4 |
| 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 55℃, storage: -20 to 60℃ |
| Connection type | Cable connector type(Ø5, 300mm, M12) |
| Protection structure | IP65 |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Min. sensing target | Opaque material of min. Ø50mm |
| Response time | Max. 10ms |
| Material | • Case: Aluminum, • Front cover, sensing part: Acrylic |
| Cable specification | Ø5mm, 4-wire, 300mm, M12 connector |
| Sensing height/Total length | 120/160mm |
| Accessories | Bracket A: 4, Bracket B: 4, Fixing bolt: 8 |
| Weight | BW40-24: Approx. 2.1kg(approx. 1.4kg) |
The Autonics BW40-04P is a through-beam area sensor that uses infrared LED light at 850nm for accurate, high-contrast detection across a sensing range of 0.1 to 7 meters. Built with 4 optical axes spaced at a 40mm pitch, it offers a focused sensing height of 120mm, making it ideal for tight zones and narrow-area presence detection. It operates on a 12–24VDC power supply (±10%) and features a PNP open collector output with Light ON operation, ensuring compatibility with modern PLCs and safety systems. This model is protected with a durable aluminum housing and rated IP65, allowing it to function reliably in dusty, moist, and high-vibration environments. Its response time of just 10ms supports real-time system feedback. The compact M12 cable connector (Ø5mm, 300mm) ensures quick installation and stable wiring. Designed to detect opaque objects as small as Ø50mm, and maintain accuracy under ambient lighting up to 10,000lx, the BW40-04P is a trusted solution where space, speed, and accuracy matter. View more Autonics sensors here.
The Autonics BW40-04P Area Sensor is well-suited for industrial tasks requiring narrow-beam detection, such as carton position confirmation, small part detection, and robotic tool presence sensing. Its short sensing height enables reliable coverage in tight conveyor sections or at entry points of machines, where precision is crucial and space is limited. Commonly applied in electronics assembly units, compact packaging lines, pick-and-place operations, and automated guided vehicle (AGV) docking stations, this sensor delivers accurate detection with minimal false triggers. Engineers and technicians prefer it for its PNP output compatibility, plug-and-play wiring, and robust performance in varying ambient light and temperature conditions. Whether deployed in small work cells or high-speed micro-automation zones, the BW40-04P ensures consistent object verification with minimal setup.
