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Red rectangular fiber-optic sensor 10.5 by 34.6 by 71.9 mm with LED display and teach button

Sick

Sick WLL180T-L432 Fiber-Optic Sensor NPN 10.5x34.6x71.9mm 12-24V DC

SKU CH-2MW8-EXTVT

Fiber-optic sensor with NPN output, 12–24 V DC supply, 10.5×34.6×71.9 mm housing and sensing up to 20 m through-beam or 1,400 mm proximity

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precise detection up to 20 m with through-beam system
  • Close-range sensing to 1,400 mm using proximity system
  • Visible 650 nm red LED simplifies alignment
  • Programmable delay 0–9,999 ms adapts to any process
  • Fast 31.2 kHz switching frequency handles high-speed lines

Purpose & Audience

The Sick WLL180T-L432 is a rectangular fiber-optic sensor for industrial detection tasks. It suits automation engineers who need a compact NPN switching unit with a visible red LED source. The 10.5 mm by 34.6 mm by 71.9 mm housing fits tight machine frames. Buyers who need PNP output or wireless connectivity should look elsewhere.

Deciding Specification

The sensor delivers a maximum through-beam range of 20 m and a proximity range up to 1,400 mm. A single teach-in button and menu-controlled adjustment set the switching point without external tools. One NPN output switches at 100 mA maximum. Response time is selectable from 16 µs to 8,000 µs, giving switching frequencies between 62.5 Hz and 31.2 kHz.

Thermals, Noise & Power

The unit operates on 12 V DC to 24 V DC with a 10 % ripple allowance and draws 50 mA. No moving parts or fan are present, so acoustic noise is negligible in normal use. The LED light source runs at 650 nm wavelength with an approximate 65° dispersion angle. Programmable delay functions from 0 ms to 9,999 ms help shape output signals without extra circuitry.

How it compares

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

Price $96.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameSick
Model nameSICK WLL180T-L432
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What does the 20 m through-beam range mean on a production line?

It detects objects up to 20 m away in a through-beam setup, suitable for long-distance presence checks.

How does the NPN output and 12-24 V DC supply limit integration?

The sensor switches the load to ground with up to 100 mA, so the PLC input must accept NPN logic within the 12-24 V range.

Will the 10.5 x 34.6 x 71.9 mm housing fit a standard DIN rail clip?

The rectangular housing measures 10.5 mm wide, 34.6 mm high and 71.9 mm deep; it mounts via through-holes, not a DIN rail clip.

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