Sick
Sick VTE18-3E8940 Photoelectric Proximity Sensor NPN
Photoelectric proximity sensor with NPN output detects objects from 10 mm to 700 mm using infrared LED, adjustable via potentiometer in an IP67-rated cylindrical housing
- Detects objects up to 800 mm with infrared LED
- NPN light-switching output integrates directly into PLC inputs
- IP67-rated plastic housing withstands dust and water jets
- Operates reliably from –25 °C to +70 °C ambient
- 2 ms response time suits fast automation cycles
Industrial Photoelectric Sensor
The Sick VTE18-3E8940 is a cylindrical photoelectric proximity sensor with an angled light emission design. It operates on a 10 V DC to 30 V DC supply voltage with a maximum power consumption of 30 mA. The housing and optics are constructed from plastic materials, achieving an IP67 enclosure rating for dust and water protection. It functions reliably across ambient temperatures from –25 °C to +70 °C.
NPN Switching Output
The sensor provides an NPN switching output configured for light switching mode. This output type sinks current to the negative rail when the target is detected, requiring a compatible PLC input card or controller designed for sinking signals. A 4-pin M12 male connector handles the electrical connection. Installers must verify that the control system logic matches this NPN configuration before wiring.
Stable Detection to 700 mm
The defined sensing range reaches 10 mm to 700 mm using an infrared LED with a 2.8° angle of dispersion. A potentiometer allows precise adjustment of the switching threshold within this window. Response time is rated at 2 ms, supporting consistent detection cycles on fast-moving production lines. The UL file reference NMFT2.E175606 confirms compliance for industrial control equipment.
Highlights
- Detects objects up to 800 mm with infrared LED
- NPN light-switching output integrates directly into PLC inputs
- IP67-rated plastic housing withstands dust and water jets
- Operates reliably from –25 °C to +70 °C ambient
- 2 ms response time suits fast automation cycles
Specifications
| Brand | SICK |
|---|---|
| Model | SICK VTE18-3E8940 |
Questions about this item
What does the 700 mm sensing range mean when the sensor is mounted on a machine?
The sensor reliably detects objects from 10 mm up to 700 mm away under normal conditions; the maximum possible reach extends to 800 mm but with reduced margin.
How does the M12 4-pin connector limit the wiring options?
The M12 4-pin male connector accepts standard 4-wire cables for 10–30 V DC supply and NPN light-switching output; no additional signals or IO-Link are supported.
What clearance is needed for the cylindrical angled housing?
The housing measures 75 mm in its longest dimension and has an angled light exit, so allow at least that depth plus cable bend radius behind the M12 connector.
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