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Small rectangular plastic sensor with M8 connector visible

Sick

Sick WT160-F450 Photoelectric Proximity Sensor PNP

SKU CH-474E-TWKP4

Photoelectric proximity sensor with background suppression, 0–100 mm range, PNP output, IP67 housing, 10–30 V DC

  • Compact 11 mm x 23 mm x 38 mm housing fits tight spaces
  • Background suppression detects objects up to 115 mm reliably
  • Selectable light/dark switching via rotary switch adds flexibility
  • IP67 enclosure rating withstands dust and water ingress
  • Fast 0.5 ms response time suits high-speed automation

Compact rectangular sensor for short-range detection

The Sick WT160-F450 is a photoelectric proximity sensor with background suppression designed for industrial automation. Its rectangular plastic housing measures 11 mm by 23 mm by 38 mm and emits visible red light at 680 nm. The sensor suits applications requiring reliable object detection up to 100 mm without interference from background surfaces.

Low power draw with IP67 sealing

Operating on 10 V DC to 30 V DC supply voltage with ±10 % ripple tolerance, the unit consumes 25 mA. A response time of 0.5 ms supports fast switching cycles. The IP67 enclosure rating protects against dust and temporary immersion, while the operating temperature spans –25 °C to +55 °C.

Selectable switching via rotary switch

The PNP output offers light/dark switching selectable through a built-in rotary switch, allowing on-site configuration without rewiring. Connection uses a male M8 4-pin connector for quick installation. UL file numbers NRNT2.E128350 and NRNT8.E128350 confirm compliance for North American markets.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $83.99
Cheaper than about 58% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WT160-F450

Questions about this item

How do I wire the M8 4-pin connector and which pin is the PNP switching output?

Connect pins 1 to 3 for 10–30 V DC supply; pin 4 is the PNP output that switches high when the target is detected.

What part will need replacement first after continuous operation?

The red LED emitter at 680 nm gradually loses intensity; plan to replace the sensor when sensing distance drops below the 100 mm nominal range.

At what temperature does the sensor stop working reliably during long shifts?

The enclosure is rated to +55 °C ambient; sustained operation above that temperature will cause the output response to exceed the 0.5 ms spec.

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