Sick
Sick WS/WE100-N1439 Through-beam photoelectric sensor NPN
Through-beam photoelectric sensor detects objects up to 12 m with visible red LED, NPN output, 10–30 V DC supply, IP65 housing and 2 m cable
- Through-beam sensing up to 15 m range
- Visible red LED at 680 nm wavelength
- NPN output with selectable light/dark switching
- 10–30 V DC supply with IP65 enclosure
- Compact 11 × 31 × 20 mm housing
Through-beam sensor for industrial detection
The Sick WS/WE100-N1439 is a through-beam photoelectric sensor designed for automated object detection in industrial environments. It uses visible red LED light at 680 nm to sense targets across a maximum range of 15 m with an effective sensing range up to 12 m. The rectangular housing measures 11 mm x 31 mm x 20 mm and weighs 106 g.
DC supply limits and output constraints
The unit operates on 10 V DC to 30 V DC with a ± 10 % ripple tolerance and draws 15 mA for the sender and 20 mA for the receiver. Its NPN switching output delivers a maximum of 100 mA with a signal voltage below 1.8 V and a response time of 0.5 ms at 1 000 Hz switching frequency. Connection is via a 2 m PVC cable with 0.18 mm² conductors and A, B, D circuit protection.
NPN light/dark switching for PLC compatibility
The sensor features a selectable light/dark rotary switch and a 270° potentiometer for sensitivity adjustment, making it suitable for PLC inputs that require NPN logic. It is not suited for systems needing PNP output or analogue signal transmission. The IP65-rated ABS/PC/POM housing with PMMA optics withstands –25 °C to +55 °C operating temperatures and includes two stainless steel 1.4301 mounting brackets.
Highlights
- Through-beam sensing up to 15 m range
- Visible red LED at 680 nm wavelength
- NPN output with selectable light/dark switching
- 10–30 V DC supply with IP65 enclosure
- Compact 11 × 31 × 20 mm housing
Specifications
| Brand | sick |
|---|---|
| Model | SICK WS/WE100-N1439 |
Questions about this item
What sensing range should I expect from the WS/WE100-N1439 in my setup?
The sensor offers a maximum sensing range of 0 m to 15 m and a defined sensing range of 0 m to 12 m using visible red light at 680 nm.
How fast does the NPN switching output react in practice?
The output switches with a response time of 0.5 ms, supporting a switching frequency of 1,000 Hz for reliable detection.
What supply voltage does the WS/WE100-N1439 require and what does it cap?
It operates on 10 V DC to 30 V DC with ±10 % ripple, drawing 15 mA for the sender and 20 mA for the receiver, while the NPN output is capped at 100 mA.
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