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Sick-GTB20G-QLRC116GZZZ
GTB20G-QLRC116GZZZ

Photoelectric sensorsG20, GTB20G-QLRC116GZZZSensing range min. / max.: 0.005 m / 3 mFunctional principle: Photoelectric proximity sensorFunctional principle detail: Background suppressionSwitching output: Relay, SPDT, electrically isolatedSwitching mode: Light/dark switchingConnection type: Terminal connection, 5 terminalsLight source: LEDType of light: Visible red lightHousing material: ABSAdjustment: PotentiometerHousing: Rectangular

Photoelectric sensors
G20, GTB20G-QLRC116GZZZ
Sensing range min. / max.: 0.005 m / 3 m
Functional principle: Photoelectric proximity sensor
Functional principle detail: Background suppression
Switching output: Relay, SPDT, electrically isolated
Switching mode: Light/dark switching
Connection type: Terminal connection, 5 terminals
Light source: LED
Type of light: Visible red light
Housing material: ABS
Adjustment: Potentiometer
Housing: Rectangular

Functional principlePhotoelectric proximity sensor
Functional principle detailBackground suppression
Sensing range
Sensing range min.0.005 m
Sensing range max.3 m
Adjustable switching threshold for background suppression0.1 m ... 3 m
Reference objectObject with 90% remission factor (complies with standard white according to DIN 5033)
Minimum distance between set sensing range and background (black 6% / white 90%)200 mm, at a distance of 1000 mm
Emitted beam
Light sourceLED
Type of lightVisible red light
Shape of light spotRectangular
Light spot size (distance)Ø 28 mm (500 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)< +/- 1.5° (at Ta = +23 °C)
Key LED figures
Normative referenceEN 62471:2008-09 | IEC 62471:2006, modified
LED risk group markingFree group
Wave length630 nm
Average service life100,000 h at Ta = +25 °C
Adjustment
Potentiometer 1For setting the sensing range, 7 rotations
Operating mode switchFor inverting the switching function (light/dark switching)
Potentiometer 2For adjusting the delay time
Potentiometer 3For selecting the delay time
Indication
LED greenOperating indicator
Static on: power on
Static off: object not present
LED yellowStatus of received light beam
Static on: object present
Static off: object not present

As Mnelko, we are a reliable partner in industrial automation solutions, offering high-quality and innovative products with a wide product range to meet all the needs of your business. Our product portfolio consists of solutions designed based on the principles of high performance, durability, and efficiency to support modern industrial processes.
All of our products ensure maximum reliability even in challenging working conditions and help your business operations run smoothly. The products we offer in industrial automation, energy management, cabling solutions, and many other areas adapt flexibly to the needs of different sectors.
Additionally, our products are manufactured using only high-quality materials and comply with international standards. Through the solutions we provide, we enable our customers to increase operational efficiency and optimize costs. Our company closely follows technological advancements and continuously offers innovative products to help our customers gain a competitive advantage.
On each of our product pages, you can find comprehensive information about technical details, areas of use, and product features. You can explore all the products you need to strengthen your industrial processes on our website and enjoy a seamless purchasing experience.

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