GRTE18-N2437

Photo Sensor, 350 mm, NPN, Energetic, Proximity, 10 to 30 VDC, 4 Pin M12 Connector, GR18 Series

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Manufacturer: SICK
Product type:
SVHC: No SVHC (21-Jan-2025)
Product Range: GR18 Series
Sensing Method: Energetic, Proximity
Connection Method: 4 Pin M12 Connector
Sensing Range Max: 350mm
Sensor Output Type: NPN
Supply Voltage DC Max: 30V
Supply Voltage DC Min: 10V

Delivery and price
Units per pack	50
Price	64.74 €
Current stock	10+
Lead time	30 days

Datasheet

GRTE18-N2437 GR18 

**CYLINDRICAL PHOTOELECTRIC SENSORS** 

**GRTE18-N2437 | GR18** CYLINDRICAL PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|GRTE18-N2437|1094782|
|Other models and accessories<br> www.sick.com/GR18<br>=>||



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## Detailed technical data 

## Features 

|**Functional principle**||Photoelectric proximity sensor|
|---|---|---|
|**Functional principle detail**||Energetic|
|**Dimensions (W x H x D)**||18 mm x 18 mm x 73.5 mm|
|**Housing design (light emission)**||Cylindrical|
|**Thread diameter (housing)**||M18 x 1|
|**Optical axis**||Axial|
|**Sensing range max.**||3 mm ... 350 mm1)|
|**Sensing range**||3 mm ... 250 mm1)|
|**Type of light**||Infrared light|
|**Light source**||LED2)|
|**Light spot size (distance)**||Ø 150 mm (250 mm)|
|**Wave length**||850 nm|
|**Adjustment**||Potentiometer|
|**Indication**|||
||LED green|Operating indicator|
|||Static on: power on|
||LED yellow|Status of received light beam|
|||Static on: object present|
|||Static off: object not present|



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

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

**Product data sheet | 2023-07-12 01:30:56 Subject to change without notice** 

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**PHOTOELECTRIC SENSORS | SICK** 

**GRTE18-N2437 | GR18** CYLINDRICAL PHOTOELECTRIC SENSORS 

## Mechanics/electronics 

|**Supply voltage**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|30 mA|
|**Switching output**|NPN|
|**Output function**|Complementary|
|**Switching mode**|Light/dark switching|
|**Signal voltage NPN HIGH/LOW**|Approx. VS/ ≤ 3 V|
|**Output current Imax.**|≤ 100 mA3)|
|**Response time**|< 1,000 µs4)|
|**Switching frequency**|500 Hz5)|
|**Connection type**|Male connector M12, 4-pin|
|**Circuit protection**|A6)<br>B7)<br>D8)|
|**Protection class**|III|
|**Housing material**|Plastic, ABS|
|**Optics material**|Plastic, PMMA|
|**Enclosure rating**|IP67|
|**Items supplied**|Fastening nuts (2 x)|
|**Electromagnetic compatibility (EMC)**|EN 60947-5-2|
|**Ambient operating temperature**|–25 °C ... +55 °C9)|
|**Ambient temperature, storage**|–40 °C ... +70 °C|
|**UL File No.**|E348498|



1) Limit values. Operated in short-circuit protected network: max. 8 A. 2) May not exceed or fall below Uv tolerances. 3) At Uv > 24 V or ambient temperature > 49 °C, IA max. = 50 mA. 4) Signal transit time with resistive load. 5) With light/dark ratio 1:1. 6) A = VS connections reverse-polarity protected. 7) B = inputs and output reverse-polarity protected. 8) D = outputs overcurrent and short-circuit protected. 9) At Uv <=24V and IA<50mA. 

## Classifications 

|**eCl@ss 5.0**|27270903|
|---|---|
|**eCl@ss 5.1.4**|27270903|
|**eCl@ss 6.0**|27270903|
|**eCl@ss 6.2**|27270903|
|**eCl@ss 7.0**|27270903|
|**eCl@ss 8.0**|27270903|
|**eCl@ss 8.1**|27270903|
|**eCl@ss 9.0**|27270903|
|**eCl@ss 10.0**|27270904|



**2023-07-12 01:30:56 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

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**GRTE18-N2437 | GR18** CYLINDRICAL PHOTOELECTRIC SENSORS 

|**eCl@ss 11.0**|27270904|
|---|---|
|**eCl@ss 12.0**|27270903|
|**ETIM 5.0**|EC001821|
|**ETIM 6.0**|EC001821|
|**ETIM 7.0**|EC002719|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



## Connection diagram 

Cd-084 

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BN 1<br>+ (L+)<br>ian WHBU 23 Q<br>—- -  (M)<br>BK 4<br>—o Q<br>**----- End of picture text -----**<br>


## Characteristic curve 

GRTE18, 250 mm 

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Operating reserve<br>1,000<br>eeea ae<br>a<br>100<br>0<br>WP UN TT<br>10 PAN<br>SaaS<br>Mm VY YT [RT]<br>e YN QY | PT<br>1 | Z_eNR PON 1 2 PS 3<br>mm 100 200 300 = 400<br>(inch) (3.94) (7.87) (11.81) (15.75)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


① Sensing range on black, 6% remission 

- ② Sensing range on gray, 20 % remission 

- ③ Sensing range on white, 90% remission 

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**Product data sheet | 2023-07-12 01:30:56 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**GRTE18-N2437 | GR18** CYLINDRICAL PHOTOELECTRIC SENSORS 

## Light spot size 

GRTE18, 250 mm 

Diameter in mm (inch) 

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Ø 15 Ø 64 Ø 150 Ø 200<br>(0.59) (2.52) (5.91) (7.87)<br>10 100 250 350<br>(0.4) (4.0) (9.84) (13.78)<br>Distance in mm (inch)<br>Sensor<br>**----- End of picture text -----**<br>


## Sensing range diagram 

GRTE18, 250 mm 

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1 5 80 110<br>2 4 120 180<br>3 3 250 350<br>0 100 200 300 400<br>(3.94) (7.87) (11.81) (15.75)<br>Distance in mm (inch)<br>Sensing range Sensing range max.<br>**----- End of picture text -----**<br>


- ① Sensing range on black, 6% remission 

- ② Sensing range on gray, 20 % remission 

- ③ Sensing range on white, 90% remission 

## Adjustments 

GRTB18(S), GRTE18(S), Sensing range setting: Potentiometer, 270° 

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**2023-07-12 01:30:56 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

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**GRTE18-N2437 | GR18** CYLINDRICAL PHOTOELECTRIC SENSORS 

## Dimensional drawing (Dimensions in mm (inch)) 

GRTE18, GRL18, GRSE18, plastic, connector, straight 

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M18 x 1 2<br>Ø 16.7<br>(0.66)<br>6<br>5<br>3<br>=<br>4<br>1<br>M12 x 1<br>©.aN<br>0.08)(<br>2<br>)<br>2.15( )<br>)<br>2.28(<br>54.6 (0.32) 58 2.89(<br>8.2  73.5<br>11.5 (0.45)<br>2.2 (0.09) ) 20(0).<br> (0.11) 15 0.59( 0.6<br>2.8<br>**----- End of picture text -----**<br>


- ① Male connector M12, 4-pin 

- ② Threaded mounting hole M18 x 1 

- ③ LED indicator yellow 

- ④ LED indicator green 

- ⑤ Sensitivity control: potentiometer 270° 

- ⑥ Fastening nuts (2 x); width across 22, plastic 

## Recommended accessories 

|**Brief description**|**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Mounting brackets and plates||||
|Mounting bracket for M18 sensors, steel, zinc coated, without mounting hardware<br>“=|Mounting bracket for M18 sensors, steel, zinc coated, without mounting hardware|BEF-WN-M18|5308446|
|Plug connectors and cables||||
|Head A: female connector, M12, 4-pin, straight, A-coded<br>Head B: Flying leads<br>Cable: Sensor/actuator cable, PVC, unshielded, 5 m<br>%o|Head A: female connector, M12, 4-pin, straight, A-coded<br>Head B: Flying leads<br>Cable: Sensor/actuator cable, PVC, unshielded, 5 m|YF2A14-<br>050VB3XLEAX|2096235|
|Head A: male connector, M12, 4-pin, straight<br>Cable: unshielded<br>®s,|Head A: male connector, M12, 4-pin, straight<br>Cable: unshielded|STE-1204-G|6009932|



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**Product data sheet | 2023-07-12 01:30:56 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

## 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 March 31, 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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