GTB2S-P1451

Photo Sensor, 120 mm, PNP, Background Suppression, Proximity, 10 to 30 VDC, Cable, G2 Series

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: SICK
Product type:
SVHC: No SVHC (21-Jan-2025)
Product Range: G2 Series
Sensing Method: Background Suppression, Proximity
Connection Method: Cable
Sensing Range Max: 120mm
Sensor Output Type: PNP
Supply Voltage DC Max: 30V
Supply Voltage DC Min: 10V

Delivery and price
Units per pack	50
Price	112.97 €
Current stock	10+
Lead time	30 days

Datasheet

GTB2S-P1451 G2 

**MINIATURE PHOTOELECTRIC SENSORS** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|GTB2S-P1451|1060205|
|Other models and accessories<br> www.sick.com/G2<br>=>||



Illustration may differ ( € et)@ Ind.us LisTeD Con.4R97 Eq. 

## Detailed technical data 

## Features 

|**Functional principle**|Photoelectric proximity sensor|
|---|---|
|**Functional principle detail**|Background suppression|
|**Dimensions (W x H x D)**|7.7 mm x 27.5 mm x 13.5 mm|
|**Housing design (light emission)**|Rectangular|
|**Sensing range max.**|2 mm ... 120 mm1)|
|**Sensing range**|25 mm ... 90 mm2)|
|**Type of light**|Visible red light|
|**Light source**|PinPoint LED3)|
|**Light spot size (distance)**|Ø 3.5 mm (50 mm)|
|**Wave length**|640 nm|
|**Adjustment**|Potentiometer, 3 turns|



- 1) Object with 90% remission (based on standard white, DIN 5033). 

- 2) Object with 6 % remission. 

- 3) Average service life: 100,000 h at TU = +25 °C. 

## Mechanics/electronics 

## **Supply voltage UB** 

10 V DC ... 30 V DC[1)] 

- 1) Limit values when operated in short-circuit protected network: max. 8 A. 

- 2) May not exceed or fall below Uv tolerances. 

- 3) Without load. 

- 4) Signal transit time with resistive load. 

- 5) With light/dark ratio 1:1. 

- 6) Do not bend below 0 °C. 

- 7) A = VS connections reverse-polarity protected. 

- 8) C = interference suppression. 

- 9) D = outputs overcurrent and short-circuit protected. 

**Product data sheet | 2024-01-17 20:19:52 Subject to change without notice** 

**2 PHOTOELECTRIC SENSORS | SICK** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

|**Ripple**|< 5 Vpp 2)|
|---|---|
|**Current consumption**|20 mA3)|
|**Switching output**|PNP|
|**Switching mode**|Light switching|
|**Output current Imax.**|≤ 50 mA|
|**Response time**|< 0.6 ms4)|
|**Switching frequency**|800 Hz5)|
|**Connection type**|Cable, 3-wire, 2 m6)|
|**Cable material**|PVC|
|**Cable diameter**|Ø 3 mm|
|**Circuit protection**|A7)<br>C8)<br>D9)|
|**Weight**|34.2 g|
|**Housing material**|Plastic, ABS|
|**Optics material**|Plastic, PMMA|
|**Enclosure rating**|IP67|
|**Ambient operating temperature**|–25 °C ... +50 °C|
|**Ambient temperature, storage**|–40 °C ... +75 °C|
|**UL File No.**|NRKH.E181493|



1) Limit values when operated in short-circuit protected network: max. 8 A. 

2) May not exceed or fall below Uv tolerances. 

3) Without load. 4) Signal transit time with resistive load. 5) With light/dark ratio 1:1. 6) Do not bend below 0 °C. 7) A = VS connections reverse-polarity protected. 8) C = interference suppression. 9) D = outputs overcurrent and short-circuit protected. 

## Safety-related parameters 

|**MTTFD**|3,138 years|
|---|---|
|**DCavg**|0 %|



## Classifications 

|**eCl@ss 5.0**|27270904|
|---|---|
|**eCl@ss 5.1.4**|27270904|
|**eCl@ss 6.0**|27270904|
|**eCl@ss 6.2**|27270904|
|**eCl@ss 7.0**|27270904|
|**eCl@ss 8.0**|27270904|
|**eCl@ss 8.1**|27270904|
|**eCl@ss 9.0**|27270904|
|**eCl@ss 10.0**|27270904|



**2024-01-17 20:19:52 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

|**eCl@ss 11.0**|27270904|
|---|---|
|**eCl@ss 12.0**|27270903|
|**ETIM 5.0**<br>**ETIM 6.0**|EC002719<br>EC002719|
|**ETIM 7.0**|EC002719|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



Connection type 

## Connection diagram 

Cd-043 

BN + (L+) BU **-** (M) BK Q 

**4** 

**Product data sheet | 2024-01-17 20:19:52 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

## Characteristic curve 

GTB2S, 120 mm 

**==> picture [198 x 228] intentionally omitted <==**

**----- Start of picture text -----**<br>
% of sensing range<br>20<br>15<br>6 %/90 %<br>3<br>10<br>18 %/90 %<br>2<br>5<br>1 90 %/90 %<br>0<br>20 40 60 80 100 120 140<br>(0.79) (1.57) (2.36) (3.15) (3.94) (4.72) (5.51)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


- ① Sensing range on white, 90% remission factor 

- ② Sensing range on gray, 18% remission factor 

- ③ Sensing range on black, 6% remission factor 

## Light spot size 

GTB2S, 120 mm 

**==> picture [113 x 136] intentionally omitted <==**

**----- Start of picture text -----**<br>
Ø 3.5<br>(0.14)<br>Ø 3.7 Ø 4.4 Ø 8.0<br>(0.15) (0.17) (0.31)<br>20 40 80 120<br>(0.79) (1.57) (3.15) (4.72)<br>Distance<br>Sensor<br>**----- End of picture text -----**<br>


**2024-01-17 20:19:52 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

## Sensing range diagram 

GTB2S, 120 mm 

**==> picture [198 x 96] intentionally omitted <==**

**----- Start of picture text -----**<br>
2 20 90 120<br>_———<br>5 20 90 105 |<br>8 20 90<br>0 20 40 60 80 100 120 140<br>| ——<V< ||<br>(0.79) (1.57) (2.36) (3.15) (3.94) (4.72) (5.51)<br>Distance in mm (inch)<br>| Sensing range Sensing range max.<br>**----- End of picture text -----**<br>


- ① Sensing range on white, 90% remission factor 

- ② Sensing range on gray, 18% remission factor 

- ③ Sensing range on black, 6% remission factor 

Dimensional drawing (Dimensions in mm (inch)) 

**==> picture [207 x 280] intentionally omitted <==**

**----- Start of picture text -----**<br>
7.7<br>(0.30) 13.5 (0.53)<br>4<br>5<br>| Oe<br>1<br>2<br>Li [<br>3 3<br>7<br>Ø 3<br>(0.13)<br>10.8 (0.43)<br>4.2<br>(0.17)<br>Ta<br>6<br>45<br>1.6 )<br>(0.06)<br>0.97( )<br> (1.08)<br>5.0 24.6 1.28(<br>(0.20)  (0.59) 27.5<br>)<br>15 32.5<br>6.8 0.27(<br>**----- End of picture text -----**<br>


- 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 

**6** 

**Product data sheet | 2024-01-17 20:19:52 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**GTB2S-P1451 | G2** MINIATURE PHOTOELECTRIC SENSORS 

## Recommended accessories 

|Other models and accessories<br> www.sick.com/G2<br>**Brief description**<br>Plug connectors and cables<br>Head A: male connector, M8, 3-pin, straight<br>Cable: unshielded<br>~~a~~<br>..|**Type**<br>STE-0803-G|**Part no.**<br>6037322<br>~~=~~|
|---|---|---|



**2024-01-17 20:19:52 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**7** 

## SICK At A GlAnCe 

SICK is one of the leading manufacturers of intelligent sensors and sensor solutions for industrial applications. A unique range of products and services creates the perfect basis for controlling processes securely and efficiently, protecting individuals from accidents and preventing damage to the environment. 

We have extensive experience in a wide range of industries and understand their processes and requirements. With intelligent sensors, we can deliver exactly what our customers need. In application centers in Europe, Asia and North America, system solutions are tested and optimized in accordance with customer specifications. All this makes us a reliable supplier and development partner. 

Comprehensive services complete our offering: SICK lifetime Services provide support throughout the machine life cycle and ensure safety and productivity. 

For us, that is “Sensor Intelligence.” 

## WOrldWIde preSenCe: 

Contacts and other locations www.sick.com 

SICK AG | Waldkirch | Germany | www.sick.com

Updated at April 23, 2026

SICK is a globally recognized leader in factory and logistics automation technology, renowned for engineering advanced sensors and developing innovative digital services. Driven by a commitment to high precision, reliability, and versatility, the company provides the foundational components required to transform traditional manufacturing processes into intelligent, self-optimizing systems that adapt autonomously using real-time data. Our comprehensive selection of SICK products is heavily focused on their industry-leading sensing technologies. We offer a robust portfolio of light sensors designed to deliver exceptional accuracy and performance in demanding industrial environments. Furthermore, our extensive range features high-quality proximity sensors and switches, providing the dependable object detection essential for automated production, packaging, and material handling applications. To ensure seamless integration of these advanced sensor networks, our offering is complemented by specialized connectivity solutions such as SICK fiber optic lead assemblies. From consumer goods and electronics to logistics and automotive manufacturing, SICK delivers the cutting-edge automation technology necessary to maximize operational efficiency and maintain continuous, reliable performance across diverse industrial sectors.

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