Maintenance teams planning replacements for BW20-48 frequently review Autonics Proximity Sensor, Autonics Digital Counter and Autonics Bwp20 08P to prevent downtime, checking availability and compatibility with existing systems.
Autonics BW20-48 Area Sensor
The Autonics BW20-48 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 , NPN 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 | BW20-48 |
Autonics BW20-48 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 | 48 |
| Power supply | 12-24VDC |
| Control output | NPN 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 | 940/960mm |
| Accessories | Bracket A: 4, Bracket B: 4, Fixing bolt: 8 |
| Weight | Approx. 2.1kg(approx. 1.4kg) |
The Autonics BW20-48 Area Sensor utilizes a through-beam sensing type with a sensing distance ranging from 0.1 to 7 meters. Featuring a modulated infrared LED (850nm) and a 20mm optical axis pitch across 48 axes, it ensures high-accuracy detection even for small or fast-moving objects, making it ideal for complex industrial setups.
Operating with a 12-24VDC power supply and NPN open collector output in Light ON mode, the BW20-48 integrates seamlessly into automation systems. The cable connector type (Γ5, 300mm, M12) provides robust connectivity, while its aluminum case and acrylic sensing surface guarantee durability and stable operation under demanding conditions.
Designed for harsh industrial environments, the BW20-48 offers IP65 protection and works efficiently within ambient temperatures of -10 to 55β (storage: -20 to 60β) and 35β85% RH. With a rapid maximum response time of 10ms and a minimum sensing target of opaque material Γ30mm, it is a reliable choice for engineers, maintenance teams, and automation professionals. Learn more about Autonics sensors here: Autonics Sensors & Controllers.
Industries such as automotive, electronics, food & beverage, and logistics benefit from its robust design and rapid response. The sensor helps engineers ensure consistent product quality while maintaining compliance with safety and process standards. Its adaptability allows deployment in conveyor systems, robotic guidance, and inspection stations.
Maintenance engineers and automation professionals can rely on the BW20-48 for both new installations and upgrades of existing systems. Its ease of integration, reliable performance, and precise detection make it a preferred choice for industrial automation projects across India.







