Sick
Sick VTF18-3N5812 photoelectric proximity sensor NPN
Detects objects up to 45 mm away with infrared light, NPN dark-switching output and IP67 protection
- Infrared LED detects objects up to 45 mm
- NPN dark-switching output suits standard PLC inputs
- 2 ms response time keeps production lines moving
- IP67 housing withstands wash-down and dust
- 10–30 V DC supply fits common industrial power
Sick VTF18-3N5812 Photoelectric Proximity Sensor
The Sick VTF18-3N5812 is a cylindrical photoelectric proximity sensor designed for industrial automation tasks. It uses an infrared LED light source to detect objects within a defined range. The NPN dark-switching output suits control systems that require a low signal when an object is present. This unit targets engineers and technicians building or maintaining automated machinery.
Sensing Range And Supply Voltage Limits
The sensor detects objects from 0 mm up to 45 mm with a maximum sensing range of 50 mm. Operation requires a DC supply voltage between 10 V and 30 V with ripple limited to 10 %. Current consumption is capped at 30 mA. The response time is 2 ms. These electrical and optical limits define the applications where reliable detection can be achieved.
Cable Connection And Environmental Rating
Installation uses a fixed 2 m PVC cable with a 0.14 mm² conductor cross-section and 3.1 mm diameter. The housing and optics are plastic, rated IP67 for dust and water ingress protection. Operating and storage temperatures span –25 °C to +70 °C. Common issues include cable damage in moving applications and potentiometer misadjustment affecting the switching point.
Highlights
- Infrared LED detects objects up to 45 mm
- NPN dark-switching output suits standard PLC inputs
- 2 ms response time keeps production lines moving
- IP67 housing withstands wash-down and dust
- 10–30 V DC supply fits common industrial power
Specifications
| Brand | SICK |
|---|---|
| Model | SICK VTF18-3N5812 |
Questions about this item
Which sensing range version should I choose for the VTF18-3N5812?
The sensor offers a maximum sensing range of 0 mm to 50 mm and a standard sensing range of 0 mm to 45 mm. Choose based on the required detection distance for your application.
What does the 2 ms response time mean once the sensor is installed in a machine?
A 2 ms response time means the switching output changes state within two milliseconds of detecting an object, suitable for high-speed automation tasks.
What does the 10 V DC to 30 V DC supply voltage cap in practice?
The sensor operates on 10 V DC to 30 V DC with a 10 % ripple limit, drawing 30 mA, and provides an NPN dark-switching output compatible with standard PLC inputs.
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