Sick
Sick VTF18-4N5740 photoelectric proximity sensor NPN
Photoelectric proximity sensor detects objects up to 45 mm using infrared LED, NPN output, 10–30 V DC supply, IP67 rated, M12 connector
- NPN output suits sinking-input PLCs
- 10–30 V DC supply fits common control voltages
- 45 mm sensing range detects close targets
- IP67 housing resists water and dust ingress
- M12 4-pin connector enables quick wiring
Industrial sensing with NPN output
The Sick VTF18-4N5740 is a cylindrical photoelectric proximity sensor built for machine-mounting tasks that need a compact 78 mm housing. It detects objects from 0 mm to 45 mm using an infrared LED and provides a selectable light/dark switching NPN output. The IP67-rated plastic body operates from –25 °C to +70 °C on a 10 V DC to 30 V DC supply.
Upgrade from basic limit switches
This sensor replaces mechanical limit switches or older diffuse sensors when non-contact detection and faster 2 ms response are required. The potentiometer adjustment lets you set the exact switching point up to the 50 mm maximum range without tools. The jump is worth it when dust, vibration or target colour changes make mechanical contacts unreliable.
Fits M12 wiring and 10–30 V DC rails
A 4-pin M12 male connector plugs directly into standard fieldbus cables, so no special loom is needed. The low 30 mA draw leaves headroom on shared 24 V DC rails. Selectable L/D control cable means one model covers both light-on and dark-on logic, reducing spare-part count. IP67 sealing handles wash-down environments without extra enclosures.
Highlights
- NPN output suits sinking-input PLCs
- 10–30 V DC supply fits common control voltages
- 45 mm sensing range detects close targets
- IP67 housing resists water and dust ingress
- M12 4-pin connector enables quick wiring
Specifications
| Brand | Sick |
|---|---|
| Model | SICK VTF18-4N5740 |
Questions about this item
What M12 connector pin count does the VTF18-4N5740 require for wiring?
The sensor uses a male M12, 4-pin connector for power and NPN switching output.
Which cable selects light or dark switching on the VTF18-4N5740?
The L/D control cable sets the switching mode; connect it to V+ for light switching or to 0 V for dark switching.
What is the IP rating and temperature range for long-term reliability?
The housing is rated IP67 and operates from –25 °C to +70 °C, so no scheduled maintenance is required beyond occasional lens cleaning.
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