SICK WL280-2H4331 Photoelectric Sensor

Product Overview

The SICK WL280-2H4331 is an industrial photoelectric sensor designed for reliable, non-contact object detection in automated production and material handling systems. Manufactured by SICK, this sensor uses a visible red LED light source and retro-reflective detection technology to identify objects passing through its sensing area.

The sensor operates with a separate reflector, allowing it to detect objects over distances of up to 15 metres with a compatible PL80A reflector. Its dual-lens optical system, compact rectangular housing, and adjustable sensitivity make it suitable for a wide range of industrial applications.

With a 24–240 V AC/DC supply range and relay switching output, the WL280-2H4331 offers flexible integration into compatible industrial control systems. It is commonly suitable for conveyor monitoring, packaging equipment, assembly lines, and general factory automation.

Key Features

  • Retro-reflective photoelectric detection technology.
  • Maximum sensing range of up to 15 m with a PL80A reflector.
  • Visible red LED for convenient optical alignment.
  • Adjustable sensitivity using an integrated potentiometer.
  • Relay switching output for compatible control circuits.
  • Wide operating voltage range of 24–240 V AC/DC.
  • Compact rectangular housing for convenient installation.
  • Cable-gland connection design.
  • Dual-lens optical system.
  • IP66/IP67 enclosure protection, as specified for the product series.
  • Supplied with a BEF-W280 mounting bracket and P250 reflector.

Applications

The SICK WL280-2H4331 is suitable for various industrial automation and monitoring applications, including:

  • Conveyor belt object detection and product counting.
  • Packaging and bottling machinery.
  • Material handling and sorting systems.
  • Assembly-line monitoring.
  • Manufacturing and production equipment.
  • Detection of cartons, containers, and packaged products.
  • Industrial machine position and passage monitoring.
  • Automated logistics and warehouse handling systems.

The sensor should be installed with the appropriate reflector and aligned according to the manufacturer's instructions.

Why Choose WL280-2H4331?

The WL280-2H4331 combines long-range optical detection, adjustable sensitivity, and flexible AC/DC power compatibility in one compact industrial device. Its visible red light helps simplify installation and alignment, while the relay output supports integration with suitable automation control circuits.

The robust enclosure and non-contact detection principle make it a practical choice for applications requiring consistent object detection without direct mechanical contact. Selecting the correct reflector, maintaining optical alignment, and following the specified electrical ratings are essential for reliable performance.

For replacement or maintenance projects, verify the exact model and part number before ordering.

Technical Specifications

  • Brand: SICK
  • Model: WL280-2H4331
  • Part Number: 6044738
  • Product Series: W280-2
  • Detection Principle: Photoelectric retro-reflective
  • Optical System: Dual lens
  • Light Source: LED
  • Light Type: Visible red light
  • Maximum Sensing Range: 15 m with PL80A reflector; 12 m with P250 reflector
  • Operating Sensing Range: Up to 13 m with PL80A; up to 11 m with P250
  • Supply Voltage: 24–240 V AC/DC
  • Switching Output: Relay
  • Switching Mode: Light switching
  • Sensitivity Adjustment: Potentiometer
  • Housing Shape: Rectangular
  • Dimensions (W × H × D): 23.5 × 74.5 × 63 mm
  • Connection: Cable gland
  • Enclosure Rating: IP66/IP67
  • Operating Temperature: −25°C to +55°C
  • Included Accessories: BEF-W280 mounting bracket and P250 reflector

Refer to the official datasheet for detailed electrical ratings, wiring, and installation requirements.

SICK WL280-2H4331 Supplier in India

Businesses in India looking for the SICK WL280-2H4331 photoelectric sensor can enquire with industrial automation distributors and electrical component suppliers. Potential sourcing channels include:

Frequently Asked Questions – WL280-2H4331

1. What is the SICK WL280-2H4331?

It is an industrial retro-reflective photoelectric sensor used for non-contact object detection in automated machinery and production systems.

2. What is the part number?

The manufacturer's part number is 6044738.

3. What is its maximum sensing distance?

The maximum sensing range is 15 metres with a PL80A reflector. With the supplied P250 reflector, the maximum specified range is 12 metres.

4. What is the operating voltage?

The sensor supports a supply voltage of 24–240 V AC/DC. Check the manufacturer's electrical specifications before connecting the device.

5. What type of output does it use?

It uses a relay switching output for compatible industrial control applications.

6. Does the sensor include a reflector?

The specified delivery package includes a P250 reflector and a BEF-W280 mounting bracket.

7. Where can this sensor be used?

Typical applications include packaging machinery, conveyor systems, production lines, material handling, and automated equipment.

8. Where can I buy the WL280-2H4331 in India?

You can enquire through industrial electronics distributors such as Element14 India, RS India, and TME India. Confirm current availability and pricing with the seller.

9. What should be checked before ordering?

Verify the model number, part number, sensing range, supply voltage, output type, accessories, and compatibility with the existing control system.


Oct 23rd, 2026 4:43 PM