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GRTB18S-P2412
Photoelectric Sensor, GR18S Series, Background Suppression, 300 mm, PNP, 10 to 30 Vdc
⚠️ 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:
- Sensing Range Max:300mm; Sensing Method:Background Suppression; Sensor Output:PNP; Product Range:GR18S Series; Connection Method:M12 Connector; Supply Voltage DC Min:10VDC; Supply Voltag
- SVHC: No SVHC (21-Jan-2025)
- Product Range: GR18 Series
- Sensing Method: Background Suppression
- Connection Method: M12 Connector
- Sensing Range Max: 300mm
- Sensor Output Type: PNP
- Supply Voltage Max: 30VDC
- Supply Voltage Min: 10VDC
- Sensing Distance Max: 300mm
- Supply Voltage DC Max: 30VDC
- Supply Voltage DC Min: 10VDC
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 95.65 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
GRTB18S-P2412 GR18S **PHOTOELECTRIC SENSORS** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS ## Ordering information |**Type**|**Part no.**| |---|---| |GRTB18S-P2412<br>Other models and accessories<br> www.sick.com/GR18S<br>!|1076102| Illustration may differ ## Detailed technical data ## Features |**Sensor/detection principle**|Photoelectric proximity sensor, Background suppression| |---|---| |**Housing design (light emission)**|Cylindrical, straight| |**Thread diameter (housing)**|M18 x 1| |**Optical axis**|Axial| |**Sensing range max.**|3 mm ... 300 mm1)| |**Sensing range**|20 mm ... 150 mm1)| |**Type of light**|Visible red light| |**Light source**|PinPoint LED2)| |**Light spot size (distance)**|Ø 7 mm (100 mm)| |**Wave length**|650 nm| |**Adjustment**|Potentiometer, 270°| - 1) Object with 90 % reflectance (referred to standard white, DIN 5033). - 2) Average service life: 100,000 h at TU = +25 °C. ## Mechanics/electronics |**Supply voltage**|10 V DC ... 30 V DC1)| |---|---| |**Ripple**|± 5 Vpp 2)| |**Power consumption**|≤ 30 mA| - 1) Limit values when 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. **Online data sheet | 2017-07-04 23:40:09 Subject to change without notice** **2** **PHOTOELECTRIC SENSORS | SICK** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS |**Output type**|PNP| |---|---| |**Output function**|Complementary| |**Switching mode**|Light/dark switching| |**Signal voltage PNP HIGH/LOW**|VS- (≤ 3 V) / approx. 0 V| |**Output current Imax.**|100 mA3)| |**Response time**|< 500 µs4)| |**Switching frequency**|1,000 Hz5)| |**Connection type**|Male connector M12, 4-pin| |**Circuit protection**|A6)<br>B7)<br>D8)| |**Protection class**|III| |**Housing material**|Nickel-plated brass and ABS| |**Optics material**|Plastic, PMMA| |**Enclosure rating**|IP67| |**Items supplied**|Fastening nuts (2 x)| |**EMC**|EN 60947-5-2| |**Ambient operating temperature**|–25 °C ... +55 °C9)| |**Ambient storage temperature**|–40 °C ... +70 °C| |**UL File No.**|NRKH.E348498 & NRKH7.E348498| 1) Limit values when 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**|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| |**ETIM 5.0**|EC002719| |**ETIM 6.0**|EC002719| |**UNSPSC 16.0901**|39121528| **2017-07-04 23:40:09 | Online data sheet Subject to change without notice** **PHOTOELECTRIC SENSORS | SICK** **3** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS ## Adjustments possible GRTB18(S), GRTE18(S), Sensing rang setting: Potentiometer, 270° ## Sensing range **==> picture [45 x 139] intentionally omitted <==** **----- Start of picture text -----**<br> + –<br>|<br>+ –<br>**----- End of picture text -----**<br> ## Connection diagram ## Cd-084 brn 1 + (L+) wht 2 Q blu 3 **-** (M) blk 4 Q **Online data sheet | 2017-07-04 23:40:09 Subject to change without notice** **4** **PHOTOELECTRIC SENSORS | SICK** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS ## Characteristic curve ## % of sensing range **==> picture [203 x 202] intentionally omitted <==** **----- Start of picture text -----**<br> 25<br>20<br>6%/90%<br>1<br>15<br>18%/90%<br>10 2<br>90%/90%<br>5 3<br>0<br>mm 50 100 150 200 250 300<br>(inch) (1.57) (3.94) (5.91) (7.87) (9.84) (11.81)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br> - ① Sensing range on black, 6% remission - ② Sensing range on gray, 18 % remission - ③ Sensing range on white, 90% remission ## Sensing range diagram **==> picture [202 x 91] intentionally omitted <==** **----- Start of picture text -----**<br> � 3 20 150<br>� 3 20 150 200<br>� 3 20 150 300<br>0 50 100 150 200 250 300<br>(1.97) (3.94) (5.91) (7.87) (9.84) (11.81)<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, 18 % remission - ③ Sensing range on white, 90% remission **2017-07-04 23:40:09 | Online data sheet Subject to change without notice** **PHOTOELECTRIC SENSORS | SICK** **5** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS ## Dimensional drawing (Dimensions in mm (inch)) GRTB18S, metal, connector, straight, adjustable 2 M18x1 6 _ 3 5 4 1 M12x1 ~~=~~ 7 8 5 4.7 ~~cs~~ 9 (0.19) M18x1 ~~——~~ - 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 (2x); width across 24, metal - ⑦ Optical axis receiver - ⑧ Optical axis sender - ⑨ Standard direction of the material being detected ## Recommended accessories Other models and accessories www.sick.com/GR18S ||**Brief description**|**Type**|**Part no.**| |---|---|---|---| |Universal bar clamp systems|||| |2D|Plate N06 for universal clamp bracket, M18, Zinc plated steel (sheet), Zinc die cast<br>(clamping bracket), Universal clamp (5322626), mounting hardware|BEF-KHS-N06|2051612| |Mounting brackets and plates|||| ||Mounting plate for M18 sensors, steel, zinc coated, without mounting hardware|BEF-WG-M18|5321870| ||Mounting bracket for M18 sensors, steel, zinc coated, without mounting hardware|BEF-WN-M18|5308446| |Terminal and alignment brackets|||| ||Mounting bracket with ball-and-socket, Plastic, mounting hardware included|BEF-WN-M18-ST02|5312973| **Online data sheet | 2017-07-04 23:40:09 Subject to change without notice** **6** **PHOTOELECTRIC SENSORS | SICK** **GRTB18S-P2412 | GR18S** PHOTOELECTRIC SENSORS |Clamping block for round sensors M18, without fixed stop, plastic (PA12), glass-fiber re-<br>inforced, mounting hardware included<br>~~TT~~|BEF-KH-M18<br>~~TT~~|2051481<br>~~TT~~<br>~~ia~~| |---|---|---| |Clamping block for round sensors M18, with fixed stop, plastic (PA12), glass-fiber rein-<br>forced, mounting hardware included<br>~~TT~~|BEF-KHF-M18<br>~~TT~~|2051482<br>~~TT~~<br>~~ia~~| |Integrated adapter, Plastic (PA12)|BEF-WN-MH15-1|4039533<br>~~ia~~<br>~~a~~| **2017-07-04 23:40:09 | Online 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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