The BW20-16 is an area sensor with a 300 mm sensing width and a detecting distance of 0.2 to 7 m, powered by 12-24 VDC. The 20 mm optical axis pitch means it catches objects down to about that size — useful for hand or small-part detection across a wide curtain. Control output is NPN open collector, so it pulls low when triggered; plan for a pull-up resistor or a sinking PLC input.
BW20-16 Area Sensor, 300 mm Sensing Width, 12-24 VDC, NPN
MPNBW20-16
BW20-16 area sensor, 300 mm sensing width, 0.2–7 m detecting distance, 12-24 VDC supply, NPN open collector output.
$624.00 – $868.35Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Specifications
| Parameter | Value |
|---|---|
| Power supply | 12-24 VDC |
| Sensing width | 300 mm |
| Control output | NPN open collector |
| Detecting distance | 0.2 - 7 m |
| Optical axis pitch | 20 mm |
Product details
Frequently asked questions
What is the closest functional second-source to BW20-16?
The BJ15M-TDT is a through-beam photoelectric sensor with the same 12-24 VDC supply and NPN output, but it is a point sensor (15 m range, no curtain width) rather than an area sensor. The BW20-16's 300 mm sensing width and 0.2–7 m range make it a different class for guarding or presence detection across a wide zone. They are not drop-in replacements without rewiring the guarding logic.
What is the BW20-16's power supply requirement?
The BW20-16 requires 12-24 VDC. No polarity protection details are in the spec, so verify the connection order against the wiring diagram on the housing.
What is the BW20-16's sensing width?
The sensing width is 300 mm. Combined with the 20 mm optical axis pitch, it forms a detection curtain suitable for hand or small-part presence detection across that width.
MPN
BW20-16