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Rectangular plastic sensor housing 24.6 by 80.6 by 54 mm with M12 connector

Sick

Sick WTB27-3P2411 Photoelectric Proximity Sensor PNP

SKU CH-S9X5-V9QHF

Photoelectric proximity sensor with background suppression detects objects from 30 mm to 1,600 mm using infrared LED and PNP complementary output

  • Photoelectric sensor with background suppression for precise detection up to 1600 mm
  • Infrared LED at 880 nm provides a focused 25 mm spot at 800 mm distance
  • PNP complementary output switches at 350 Hz with 1.5 ms response time
  • Rugged IP69K ABS housing withstands 40 °C to +60 °C operating temperatures
  • Compact 24.6 x 80.6 x 54 mm design with M12 4-pin connector for easy integration

Industrial Proximity Sensor

The Sick WTB27-3P2411 is a photoelectric proximity sensor with background suppression designed for industrial automation. It operates on 10 V DC to 30 V DC supply voltage and provides a PNP complementary switching output. The rectangular housing measures 24.6 mm x 80.6 mm x 54 mm and weighs 100 g. It connects via a male M12 4-pin connector.

Sustained Operation

The sensor maintains a switching frequency of 350 Hz with a response time of 1.5 ms for consistent detection cycles. Its IP69K enclosure rating protects internal electronics during high-pressure washdown procedures. The ABS housing and PMMA optics withstand ambient operating temperatures from -40 °C to +60 °C. Power consumption remains at 40 mA during continuous use.

Installation Checks

Verify that your control system accepts a PNP signal with approximately VS 2.5 V high and 0 V low levels. The output current must not exceed 100 mA per channel. Ensure the mounting location accommodates the 24.6 mm x 80.6 mm x 54 mm housing and M12 connector orientation. Confirm the 10 V DC to 30 V DC supply matches your available power rail.

How it compares

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Price $196.99
Pricier than about 78% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WTB27-3P2411

Questions about this item

Does the SICK WTB27-3P2411 sensor generate noticeable heat when powered continuously at 30 V DC?

Power consumption is 40 mA at up to 30 V DC, so heat output is minimal during all-day operation.

Which mating connector and cable do I need for the M12 4-pin plug on this sensor?

You need an M12 4-pin female connector cable to supply 10–30 V DC and read the PNP complementary output.

Will the 880 nm infrared LED and 350 Hz switching frequency work reliably with my existing PLC input cards rated for 100 mA?

The PNP output delivers up to 100 mA at 350 Hz, matching typical PLC input specifications for this current level.

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