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Rectangular plastic inductive sensor 40 by 40 by 66 mm with M12 connector

Sick

Sick IQ40-20BPSKCOK Inductive Proximity Sensor PNP 20mm

SKU CH-TSH5-6FRPH

Rectangular inductive proximity sensor detects metal at 20 mm range with PNP output and IP67/IP68/IP69K sealing

  • 20 mm sensing range detects metal targets reliably
  • PNP normally-open output simplifies control wiring
  • IP67 IP68 IP69K enclosure withstands harsh environments
  • 10 to 30 V DC supply fits standard industrial power
  • 150 Hz switching frequency suits fast automation cycles

Sick IQ40 Inductive Proximity Sensor

The Sick IQ40-20BPSKCOK is a rectangular, short-body inductive proximity sensor designed for industrial automation and position-sensing tasks. It operates on a 10 V DC to 30 V DC supply and provides a PNP normally open switching output through a 4-pin M12 male connector. The sensing face and housing are both made from PA 66 plastic.

Flush-Mount 20 mm Sensing Range Upgrade

This sensor replaces older or shorter-range flush-mount units by offering a 20 mm nominal sensing range with a 16.2 mm safe sensing range. The jump is worthwhile when an application demands reliable detection at greater distances or when a switching frequency of 150 Hz is needed for faster cycle times. It also brings IP67, IP68 and IP69K enclosure ratings for harsh wash-down environments.

Pre-Installation Checks for M12 PNP Wiring

Verify that the control system accepts a PNP normally open signal and supplies 10 V DC to 30 V DC with a maximum 200 mA load capacity. Confirm the mounting location allows a flush installation within the 40 mm by 40 mm by 66 mm housing dimensions and that the 1.8 Nm maximum tightening torque is observed. Ensure the ambient operating temperature stays between –25 °C and +85 °C.

How it compares

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Price $88.99
Cheaper than about 55% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK IQ40-20BPSKCOK

Questions about this item

What are the housing dimensions and flush-mount clearance for the 40 mm rectangular sensor?

The short-body housing measures 40 mm wide, 40 mm high and 66 mm deep, and is designed for flush installation with a 20 mm sensing range and 16.2 mm safe sensing range.

How is the M12 4-pin connector wired for the PNP normally-open output on a 10–30 V DC supply?

Connect the brown wire to 10–30 V DC, blue to 0 V, and black to the load; the sensor draws 20 mA, delivers up to 200 mA, and includes short-circuit, reverse-polarity and power-up pulse protection.

What ongoing checks does the IP67/IP68/IP69K-rated PA 66 housing need in a –25 °C to +85 °C environment?

Periodically verify the M12 connector seal, clean the PA 66 sensing face, confirm mounting torque stays at or below 1.8 Nm, and watch for output drift beyond the ±10 % temperature specification.

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