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Red plastic reflex sensor with M12 4-pin connector and potentiometer adjustment

Wenglor

Wenglor HN24PA3 PNP reflex sensor 10...30 V DC IP67 M12 4-pin 50...150 mm range

SKU CH-9NH0-99J46 MPN HN24PA3

PNP reflex sensor with adjustable 50...150 mm range, 10...30 V DC supply, IP67 protection, and M12 4-pin connection

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Reliable detection up to 150 mm with adjustable 50...150 mm range
  • Fast 900 Hz switching and 555 µs response for high-speed lines
  • Rugged IP67 housing with full encapsulation withstands harsh environments
  • Protected PNP output handles 200 mA with short-circuit and overload safeguards
  • Wide 10...30 V DC supply simplifies integration into existing systems

PNP reflex sensor for DC automation

The Wenglor HN24PA3 is a PNP reflex sensor that operates on 10...30 V DC and detects objects from 50...150 mm. It has an M12 4-pin connector and an IP67-rated plastic housing with full encapsulation. The unit switches at 900 Hz with a 555 µs response time. It is suited for industrial control systems that need a compact red-light sensor.

Fit for presence detection on conveyors

This sensor suits engineers who need a PNP output with antivalent NO/NC switching and short-circuit protection. The potentiometer allows range adjustment without software. Buyers who require an NPN output or a longer sensing distance should look elsewhere. It also does not suit applications that demand a metal housing or a different connector type.

Adjustable 50...150 mm sensing range

The detection range is set between 50...150 mm using the onboard potentiometer. Switching hysteresis stays below 5 % and temperature drift is under 5 % across -25...60 °C. The red light source is rated for 100000 h at 25 °C. This range is the primary factor when confirming the sensor matches the installation geometry.

How it compares

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

Price $268.99
Pricier than about 85% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameWenglor
Model nameHN24PA3
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What does the 50…150 mm sensing range mean once the sensor is installed?

The sensor reliably detects objects between 50 mm and 150 mm from its face; anything closer than 50 mm or farther than 150 mm may not trigger the output.

How does the M12 4-pin connector limit what I can connect?

The M12 × 1, 4-pin plug carries 10…30 V DC supply, the PNP switching output and its complementary NO/NC signals; it cannot carry additional analogue or bus data.

What mounting clearance does the plastic IP67 housing need?

The fully encapsulated plastic body meets IP67 and fits through a standard M12 mounting hole; no extra sealing gland or oversized cut-out is required.

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