SICK WL24-2X430 Photoelectric Retro-reflective Sensor

USD 665.00

Compact ATEX-rated retro-reflective photoelectric sensor with 22m max sensing range, NAMUR output, IP67 zinc housing, and glass optics for hazardous areas.

SKU SICK-1026037 Category
Top Brands > SICK Sensors > SICK Photoelectric Sensors

SICK WL24-2X430 Photoelectric Retro-reflective Sensor

Model Identifier WL24-2X430
Official Part Number 1026037
GTIN Standard 4047084173356

Technical Overview

Compact ATEX-rated retro-reflective photoelectric sensor with 22m max sensing range, NAMUR output, IP67 zinc housing, and glass optics for hazardous areas.

Key Features

  • Photoelectric retro-reflective sensing principle with a max range of 22 m (15 m operating range)
  • ATEX II 2G (gas) and 2D (dust) certified for hazardous explosive environments (Ex ia op is IIC T4 Gb)
  • Low-power intrinsically safe NAMUR switching output designed for hazardous areas
  • Rugged zinc diecast metal housing with durable glass optics and IP67 protection class rating
  • Integrated visible red LED light source with an easily visible light spot of Ø 250 mm at 15 m
  • Adjustable sensitivity potentiometer for fast, accurate commissioning
  • 90-degree rotatable M12 4-pin male connector for flexible mechanical mounting

5 V DC ... 15.5 V DC Supply Voltage, NAMUR Output (Ui max 15.5 V, Pi max 100 mW, Ii max 53 mA)

Technical Specification Matrix

ParameterValue
Functional PrinciplePhotoelectric retro-reflective sensor
Maximum Sensing Range0 m ... 22 m
Operating Sensing Range0 m ... 15 m
Supply Voltage (UB)5 V DC ... 15.5 V DC
Switching OutputNAMUR
Switching ModeLight switching
Response Time≤ 10 ms
Switching Frequency50 Hz
Connection TypeMale connector M12, 4-pin (rotatable by 90°)
Housing MaterialMetal, zinc diecast
Optics MaterialGlass
Enclosure RatingIP67
ATEX MarkingATEX II 2G Ex ia op is IIC T4 Gb (Directive 2014/34/EU)
Ex Area Category2G / 2D
Maximum Input Voltage (Ui)15.5 V
Maximum Input Current (Ii)53 mA
Maximum Input Power (Pi)100 mW
Internal Capacitance (Ci)80 nF
Internal Inductance (Li)0 µH
Operating Temperature Range-20 °C ... +60 °C
Physical Weight (kg)0.33
Dimensions L x W x H (cm)6.5 x 2.7 x 8.75

Industrial Applications

1. Intrinsically Safe Position Monitoring in Chemical Processing

Monitoring the position of chemical transport containers and open/close states of pneumatic process valves in ATEX Zone 1 hazardous zones. The low-power NAMUR interface ensures safe connection to isolated barriers to prevent combustion.

Problem Solved

Standard photoelectric sensors introduce electrical sparks and thermal risks in chemical vapor environments. The WL24-2X430 operates under strict intrinsic safety parameters (Ui 15.5 V, Pi 100 mW) to eliminate ignition risks.

ATEX Zone 1NAMUR OutputIntrinsically SafeEx iaChemical Processing

2. Long-Range Object Detection in Oil and Gas Storage

Detecting fuel drums, transfer carts, or containment barriers across wide transport lanes near tank fields. The sensor leverages a massive 22-meter maximum range and IP67-sealed zinc housing to function reliably over large outdoor gaps.

Problem Solved

Conventional explosive-proof sensors lack the long-range optical power to monitor broad physical spaces without requiring complex transmitter-receiver wiring on both sides. This retro-reflective design only needs wiring on the active sensor side.

22m Sensing RangeZinc DiecastIP67 Enclosure RatingOil & Gas Industry

3. Combustible Dust Hazard Detection in Grain Mills

Tracking high-speed material flows on conveyor lines inside agricultural silos and grain mills, where airborne flour or organic dust creates an ATEX Zone 2D hazard.

Problem Solved

Dense dust deposits on standard sensors can cause overheating, creating a severe fire hazard. This sensor is certified for ATEX dust category 2D and features glass optical elements that tolerate high abrasive environments and frequent wipe-downs.

ATEX Zone 2DCombustible DustGlass OpticsGrain Mills
Select your currency