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Small red rectangular sensor with cable attached

Sick

Sick GTB2S-N1451 Photoelectric Sensor NPN 10-30V DC 2m Cable IP67

SKU CH-S7FD-DFTQ9 MPN GTB2S-N1451

Miniature photoelectric sensor with background suppression, 25–90 mm range, NPN output, 2 m cable, IP67 rated

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Miniature 7.7 mm x 27.5 mm housing fits tight spaces
  • PinPoint LED gives visible red spot at 640 nm wavelength
  • NPN light-switching output handles up to 50 mA load
  • 800 Hz switching frequency suits fast detection cycles
  • IP67 enclosure rating resists dust and water ingress

Miniature photoelectric sensor

The Sick GTB2S-N1451 is a rectangular photoelectric proximity sensor that uses visible red PinPoint LED light at 640 nm to detect objects. It operates on 10 V DC to 30 V DC supply voltage and provides an NPN switching output with light switching mode. The 2 m PVC cable with three wires simplifies installation in automation and electrician tool applications.

Sustained detection up to 90 mm with fast response

Under continuous operation the sensor maintains a sensing range of 25 mm to 90 mm and a switching frequency of 800 Hz. Response time stays below .6 ms while power consumption remains at 20 mA. The IP67 enclosure rating and ABS housing protect the electronics across an ambient operating temperature of –25 °C to +50 °C, ensuring reliable performance during extended production runs.

Replaces larger proximity sensors where space is

The 7.7 mm x 27.5 mm x 13.5 mm housing fits into tight machine frames that cannot accommodate bulkier sensors. The potentiometer with three turns allows precise background suppression adjustment without external tools. Builders needing longer cable runs or a different output type should verify compatibility before specifying this model.

How it compares

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

Price $82.99
Cheaper than about 59% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameGTB2S-N1451
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

How much heat or power does the GTB2S-N1451 draw when running continuously?

The sensor consumes 20 mA from a 10-30 V DC supply, giving very low heat output during all-day operation.

What power supply and wiring must I already have to install the GTB2S-N1451?

You need a 10-30 V DC source and a three-wire connection; the sensor comes with a 2 m PVC cable for direct wiring.

Can the GTB2S-N1451 share a 10-30 V DC rail with older NPN sensors that also switch loads under 50 mA?

Yes, its NPN light-switching output and <50 mA rating let it sit on the same rail as similar legacy NPN devices.

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