Compact Photoelectric Sensor – WL27-3P2451

The WL27-3P2451 from the W27 series is a robust and compact photoelectric retro-reflective sensor designed for reliable detection in harsh industrial settings. Equipped with a dual-lens system and polarisation filter, it ensures accurate object detection at ranges up to 15 meters, even in environments with high levels of dirt, moisture, or vibration.

Featuring complementary PNP outputs, a fast response time of ≤ 500 µs, and light/dark switching, the WL27-3P2451 offers great flexibility in automation applications. The integrated front screen heating and IP69K enclosure rating provide superior resistance to condensation and washdowns, making it perfect for food, beverage, and packaging industries.

Specifications

• Functional principle: Photoelectric retro-reflective sensor

• Detail: Dual lens system with minimum distance to reflector

• Sensing range: 0.1 m to 11 m (max. up to 15 m)

• Light source: LED (visible red light)

• Wavelength: 660 nm

• Light spot size: Ø 220 mm at 10 m

• Angle of dispersion: Approx. 1.5°

• Focus: Approx. 1.5°

• Adjustment: Potentiometer

• Switching output: PNP, Complementary

• Switching mode: Light/dark switching

• Output current: ≤ 100 mA

• Signal voltage (PNP HIGH/LOW): Approx. VS – 2.5 V / 0 V

• Switching frequency: 1,000 Hz

• Response time: ≤ 500 µs

• Supply voltage: 10 V DC to 30 V DC

• Ripple: < 5 Vpp

• Current consumption: 45 mA

• Connection type: M12 male connector, 4-pin

• Circuit protection: Types A, B, C

• Protection class: II

• Polarisation filter: Yes

• Front screen heating: Yes

• Housing material: Plastic, ABS

• Optics material: Plastic, PMMA

• Enclosure rating: IP69K

• Operating temperature: –40 °C to +60 °C

• Storage temperature: –40 °C to +75 °C

• Dimensions (W x H x D): 24.6 mm x 80.6 mm x 54 mm

• Weight: 100 g

• UL Certification: NRKH.E181493 & NRKH7.E181493