Sick
Sick VTF18-3N5612 photoelectric proximity sensor NPN
Photoelectric proximity sensor with background blanking, 0–45 mm range, NPN dark-switching output, 2 m cable, IP67 rated
- Photoelectric proximity sensor detects objects up to 50 mm
- NPN dark-switching output handles 100 mA load current
- IP67 enclosure resists dust and water ingress
- 10–30 V DC supply suits industrial power rails
- 2 m PVC cable with 0.14 mm² conductors simplifies wiring
Sensing range and output
The Sick VTF18-3N5612 is a cylindrical photoelectric proximity sensor with background blanking designed for industrial detection tasks. It operates on a 10 V DC to 30 V DC supply and provides an NPN dark-switching output rated at 100 mA maximum. The sensing range extends from 0 mm to 45 mm with a maximum of 50 mm, suited for short-range presence sensing in automation environments.
Focused optics and fixed adjustment
Focused optics produce a 3 mm light spot at 25 mm distance using an infrared LED source, which helps isolate small targets without background interference. The sensor has no adjustment mechanism, so the detection zone is fixed once mounted. A 2 m PVC cable with three 0.14 mm² conductors and a 3.1 mm outer diameter carries power and signal, simplifying wiring in confined spaces.
IP67 enclosure and temperature limits
The plastic PBT/PC housing with PMMA optics meets IP67 enclosure rating, protecting against dust ingress and temporary immersion during wash-down cycles. Operating temperature spans –25 °C to +70 °C, covering cold storage and warm machine environments. Response time of 2 ms and 250 Hz switching frequency set the practical speed limit for high-cycle counting or positioning applications.
Highlights
- Photoelectric proximity sensor detects objects up to 50 mm
- NPN dark-switching output handles 100 mA load current
- IP67 enclosure resists dust and water ingress
- 10–30 V DC supply suits industrial power rails
- 2 m PVC cable with 0.14 mm² conductors simplifies wiring
Specifications
| Brand | SICK |
|---|---|
| Model | SICK VTF18-3N5612 |
Questions about this item
Will the 2 m PVC cable need replacing if it gets cut or crushed?
The sensor ships with a fixed 3‑wire PVC cable 2 m long and 3.1 mm in diameter; the cable is not detachable, so any damage means replacing the whole unit.
What limits continuous operation — the 250 Hz switching frequency or the 100 mA output current?
The 250 Hz switching frequency sets the maximum event rate; the 100 mA output current limit only caps the load each switching cycle can drive.
Does the IP67 enclosure keep the sensor cool enough for all‑day use at 70 °C ambient?
The housing is rated IP67 and specified for –25 °C to +70 °C ambient; no active cooling is required, but sustained operation at the top of that range will raise the housing temperature.
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