dataSheet_GTB2S-N1451_1060203_en.pdf - 第7页
SICK AT A GLANCE SICK AG W ALDKIRCH GERMANY SICK. COM SICK is a leading gl obal technology company f or int elligent sensors and integr ated solutions in industrial automation. Our technologies se t benchmarks, making yo…

PHOTOELECTRIC SENSORS - GTB2S-N1451
LIGHT SPOT SIZE GTB2S, 120 MM
Distance
Ø 3.7
(0.15)
Ø 3.5
(0.14)
Ø 4.4
(0.17)
Ø 8.0
(0.31)
20
(0.79)
40
(1.57)
80
(3.15)
120
(4.72)
Sensor
SENSING RANGE DIAGRAM GTB2S, 120 MM
0 20
(0.79)
40
(1.57)
60
(2.36)
80
(3.15)
100
(3.94)
120
(4.72)
140
(5.51)
3
2
1
Distance in mm (inch)
Sensing range
Sensing range max.
20 902
20 908
20 90
120
1055
① Sensing range on white, 90% remission factor
② Sensing range on gray, 18% remission factor
③ Sensing range on black, 6% remission factor
2026-07-24 04:33:54 · SUBJECT TO CHANGE WITHOUT NOTICE DATA SHEET | SICK
5

PHOTOELECTRIC SENSORS - GTB2S-N1451
DIMENSIONAL DRAWING
7.7
(0.30)
1.6
(0.06)
5.0
(0.20)
6.8
(0.27)
Ø 3
(0.13)
24.6 (0.97)
15 (0.59)
13.5 (0.53)
27.5 (1.08)
32.5 (1.28)
10.8 (0.43)
4.2
(0.17)
1
2
3
3
4
5
7
6
45
Dimensions in mm (inch)
① optical axis, receiver
② optical axis, sender
③ Mounting hole, Ø 3.2 mm
④ LED indicator green: Supply voltage active
⑤ LED indicator yellow: Status of received light beam
⑥ Potentiometer
⑦ Connection
Further information as well as suitable accessories, example applications and downloads such as CAD di-
mensional models, operating instructions and software can be found at www.sick.com/1060203
6
DATA SHEET | SICK 2026-07-24 04:33:54 · SUBJECT TO CHANGE WITHOUT NOTICE

SICK AT
A GLANCE
SICK AG
WALDKIRCH
GERMANY
SICK.COM
SICK is a leading global technology company for intelligent sensors
and integrated solutions in industrial automation. Our technologies set
benchmarks, making your industrial processes more efcient, safer
and more sustainable – both in logistics and manufacturing operations.
SICK combines sensor intelligence with industry expertise and certi-
ed consulting services. We provide the ideal foundation for scalable
as well as tailor-made automation solutions and create added value
along the entire value chain. Our close partnerships with our customers
are more than just a promise: Together, we optimize productivity,
improve quality, protect health and safety, and help build a sustainable
future. All with empathy and trust.
Since 1946, we have been developing innovative technologies with
passion and a pioneering spirit. With a global network in around
40 countries, SICK has a global presence and is always close by.
The company’s headquarters are located in Waldkirch near Freiburg,
Germany. Our customers benet from our understanding of both
local and global requirements, which enables us to deliver tailor-made
solutions