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Red rectangular plastic sensor housing with M12 connector

Wenglor

Wenglor LN40PA3 retro-reflex sensor PNP 11000 mm IP67

SKU CH-PWZJ-G8V7Z MPN LN40PA3

Retro-reflex sensor detects objects up to 11000 mm with PNP output, 500 Hz switching and IP67 housing

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Detects objects up to 11000 mm away
  • Red light with polarization filter reduces false triggers
  • Switches at 500 Hz for fast response
  • IP67 housing withstands dust and water immersion
  • Operates reliably from -10 °C to 60 °C

Retro-reflex sensor with 11 m range

The Wenglor LN40PA3 is a retro-reflex photoelectric sensor designed for presence detection in industrial automation. It operates on a 10...30 V DC supply and provides a PNP antivalent switching output with 200 mA capacity. The red-light emitter works with a polarisation filter and two-lens optics for reliable performance. A potentiometer allows adjustment of the switching point.

Suited for DC control systems needing IP67

This sensor fits machines and conveyors that require a detection distance up to 11000 mm using the RQ100BA reflector. The IP67-rated plastic housing withstands wash-down environments and temperatures from -10...60 °C. It is not intended for AC supply networks or applications needing analogue distance measurement. Buyers requiring a different output logic or connector type should select another model.

11000 mm sensing range with RQ100BA reflector

The maximum operating distance is 11000 mm when paired with the specified RQ100BA reflector or foil. This range determines whether the sensor can bridge the required gap between emitter and target in your layout. Verify the available mounting distance against this figure before purchase.

How it compares

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

Price $235.99
Pricier than about 82% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameWenglor
Model nameLN40PA3
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What reflector must I already have for the LN40PA3 to detect objects at 11000 mm?

The sensor is specified to work with the RQ100BA reflector or reflector foil to achieve its full 11000 mm sensing range.

Can I run the LN40PA3 on the same 24 V DC supply that powers my older PLC input modules?

Yes, the sensor accepts 10...30 V DC and draws under 40 mA at 24 V, so it shares a standard 24 V rail without issue.

How do I verify the LN40PA3 is switching correctly after wiring the M12 connector and setting the potentiometer?

The PNP output delivers up to 200 mA with a voltage drop below 2,5 V; a multimeter or PLC input will show a clean high/low transition each time the beam is interrupted.

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