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Red plastic photoelectric sensor with M8 4-pin connector

Wenglor

Wenglor YK12NA7 photoelectric sensor NPN 18...120 mm laser 655 nm IP67 M8 4-pin

SKU CH-SSND-QY9HJ MPN YK12NA7

Detects objects 18...120 mm away with a 655 nm class 2 laser, NPN antivalent output, 1300 Hz switching and IP67 housing

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Precise detection up to 120 mm with adjustable 18...120 mm range
  • Laser 655 nm light source enables accurate sensing in bright conditions
  • Fast 1300 Hz switching frequency and 385 µs response for high-speed automation
  • IP67 full encapsulation protects against dust and water ingress
  • NPN antivalent NO/NC output with short-circuit and reverse-polarity protection

Industrial sensing range

The Wenglor YK12NA7 is a photoelectric sensor with an adjustable detection range of 18...120 mm using a 655 nm red laser. It suits automation tasks that require precise presence detection on conveyors or small-part handling. The NPN antivalent output provides both normally-open and normally-closed signals from a single device. Buyers who need a longer sensing distance or a PNP output type will not be served by this model.

Thermal and electrical behaviour

Operating temperature spans -25...60 °C with a temperature drift below 5 %, and the sensor draws under 15 mA at 24 V DC from a 10...30 V DC supply. Switching frequency reaches 1300 Hz with a 385 µs response time, while built-in short-circuit, reverse-polarity and overload protection maintain stable operation. The laser is rated Class 2 per EN 60825-1 and offers a 100000 h service life at 25 °C.

Mounting and connectivity

A fully encapsulated plastic housing rated IP67 resists dust and water ingress in harsh environments. Connection is via an M8 × 1 4-pin plug, and the sensing distance is set with a potentiometer on the body. The package contains one sensor in a box. Installers who require a cable tail or a different connector format must source an alternative.

How it compares

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

Price $373.99
Pricier than about 90% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameWenglor
Model nameYK12NA7
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

How do I mount and wire the M8 4-pin connector, and which step is often missed?

Mount the plastic housing, connect the M8 4-pin plug to a 10...30 V DC supply, then adjust the potentiometer while the target is at the desired distance; the step often missed is fine-tuning the potentiometer after power-up.

What maintenance or replacement will the YK12NA7 need over time?

The laser light source is rated for 100000 h at 25 °C; after that the sensor may need replacement, and the lens should be cleaned periodically to maintain the 18...120 mm range.

What limit appears first during continuous high-speed operation?

The 1300 Hz switching frequency and 385 µs response time set the maximum detection speed; exceeding this rate causes missed signals before thermal or voltage limits are reached.

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