SICK GTB10-N1221 Photoelectric Proximity Sensor 1200 mm NPN – Long-Range Background Suppression
At a Glance
- Detection range up to 1,200 mm with reliable background suppression (BGS)
- Infrared light source – ideal for multi-colored objects and complex surface finishes
- NPN output, 10–30 VDC supply – compatible with most industrial PLCs and controllers
- IP67-rated ABS/PMMA housing – fully dust-proof and waterproof
- Supports SICK’s Q-Lock mounting system for rapid and secure installation
- 1,000 Hz switching frequency and response time ≤ 500 µs for high-speed applications
GTB10-N1221 is a photoelectric proximity sensor from SICK’s G10 series, using background suppression (BGS) detection with an infrared light source, a maximum detection range of 1,200 mm, and NPN output. It is widely used in logistics automation, packaging, and manufacturing lines across Vietnam.
Overview of the SICK GTB10-N1221 Photoelectric Sensor
The GTB10-N1221 is a compact photoelectric proximity sensor from SICK AG (Germany), engineered to detect objects precisely at distances from 20 mm to 1,200 mm using the background suppression principle. Its infrared light source ensures reliable operation across a wide variety of materials and surface colors in demanding industrial environments.
What distinguishes the GTB10-N1221 from conventional diffuse sensors is its ability to differentiate the detected object from the background behind it—even when both share similar colors or reflectivity levels. This eliminates false signals and greatly improves system reliability.
5 key specifications:
- Detection range: 20 mm – 1,200 mm (background suppression)
- Light source: Infrared (IR) LED, 850 nm wavelength
- Output: NPN Open Collector, Imax ≤ 100 mA
- Protection rating: IP67 – fully dust-proof, waterproof to 1 m depth
- Supply voltage: 10–30 VDC, current consumption ≤ 20 mA
Technical Specifications – SICK GTB10-N1221
| Parameter |
Value |
| Model |
GTB10-N1221 |
| Part No. |
1108635 |
| Product Series |
G10 – Small Photoelectric Sensors |
| Detection Principle |
Photoelectric proximity sensor, Background Suppression (BGS) |
| Max. Sensing Range |
20 mm … 1,200 mm (90% remission, DIN 5033) |
| Light Source Type |
Infrared (IR) LED |
| Housing Dimensions (W x H x D) |
20 mm × 50 mm × 39 mm |
| Housing Style |
Rectangular |
| Adjustment |
5-turn potentiometer |
| Switching Mode |
Light/dark switching – selectable via selector switch |
| Supply Voltage |
10 V DC … 30 V DC |
| Ripple |
< 5 Vpp |
| Current Consumption |
≤ 20 mA |
| Switching Output |
NPN (Open Collector) |
| Max. Output Current |
Imax ≤ 100 mA |
| Response Time |
≤ 500 µs |
| Switching Frequency |
1,000 Hz |
| Connection Type |
Cable, 3-wire, 2 m, PVC |
| Conductor Cross-Section |
0.14 mm² |
| Circuit Protection |
Short-circuit, reverse polarity, overvoltage protected |
| Enclosure Rating |
IP67 |
| Housing Material |
Plastic, ABS/PMMA |
| Weight |
90 g |
| Ambient Operating Temperature |
–30°C to +60°C |
| EMC Standard |
EN 60947-5-2 |
| Average Service Life |
100,000 h at +25°C |
| Origin |
SICK AG, Waldkirch, Germany |
Specifications sourced from SICK GTB10-N1221 datasheet
Industrial Applications of the SICK GTB10-N1221
With a 1,200 mm detection range and reliable background suppression, the GTB10-N1221 serves a broad range of industrial applications:
Logistics and Automated Warehousing:
Detects parcels and cartons on conveyor belts at distances up to 1.2 m. The infrared light source eliminates interference from ambient lighting (LED or natural light), ensuring consistent detection in warehouse environments.
Food and Beverage Packaging Lines:
Reliably detects products in various colors (plastic bottles, paper cartons, aluminum cans) without interference from conveyor belts or backgrounds. IP67 ensures durability through routine washdowns.
Sorting and Inspection Systems:
Integrated into sorting systems to detect presence or absence of products at 1,000 Hz switching frequency—suitable for high-speed production lines requiring fast cycle times.
Electronics and Component Manufacturing:
Detects PCBs and small components on SMT lines. The 5-turn potentiometer allows fine-tuning of the exact detection point for precision applications.
Wood and Furniture Industry:
Detects wood panels and MDF boards at safe distances. Infrared light performs well across materials with varying colors and reflectivity characteristics.
GTB10-N1221 vs. Similar G10 Models
| Criterion |
GTB10-N1221 |
GTB10-N1211 |
GTB10-N1212 |
| Max. Sensing Range |
1,200 mm |
950 mm |
950 mm |
| Light Source |
Infrared (IR) |
Visible Red (625 nm) |
Visible Red (625 nm) |
| Output |
NPN |
NPN |
NPN |
| Connection |
Cable 2 m |
Cable 2 m |
2 m cable with BEF-G10DC01 mounting bracket |
| Best For |
Long range, multi-color objects |
Standard range, visible beam alignment |
Standard range, M12 connector needed |
Selection note:
The infrared model (GTB10-N1221) provides more stable detection performance for multi-colored objects and long-distance applications, but alignment is more difficult because the light beam is invisible to the human eye. In contrast, the red-light models (GTB10-N1211/N1212) allow easier beam alignment and visual setup, but their detection performance is more affected by object color variations.
Frequently Asked Questions – SICK GTB10-N1221
Q1: What is the price of the SICK GTB10-N1221?
A: Pricing depends on order quantity and timing. Contact AUMI at +84 917 991 589 for the best quotation and free technical consultation to select the right model for your application.
Q2: What is the difference between GTB10-N1221 and GTB10-N1211?
A: The GTB10-N1221 uses an infrared light source with a maximum sensing range of 1,200 mm, while the GTB10-N1211 uses a visible red light source (625 nm) with a 950 mm range. Choose the N1221 for longer detection distances or applications involving multi-colored objects.
Q3: Is the GTB10-N1221 compatible with Mitsubishi / Omron / Siemens PLCs?
A: Yes. The NPN Open Collector output is compatible with virtually all common industrial PLCs in Vietnam, including Mitsubishi, Omron, Siemens, Delta, and others.
Q4: Where can I buy a genuine SICK GTB10-N1221 in Vietnam?
A: AUMI is an authorized SICK distributor in Vietnam, guaranteeing 100% genuine products with full CO/CQ documentation, official warranty, and 24/7 technical support.
Q5: What industries use the GTB10-N1221?
A: The GTB10-N1221 is widely used in logistics, food and beverage packaging, electronics manufacturing, woodworking, textiles, and other industries across Vietnam.
Contact Us to Purchase the SICK GTB10-N1221
AUMI – Official SICK Distributor in Vietnam. Genuine warranty, full CO/CQ, 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
📍 Offices:
- Hanoi: B44, Garden Lot, Viet Hung Urban Area, Long Bien
- Ho Chi Minh City: Floor 2, HS Building, 260/11 Nguyen Thai Binh, Tan Binh District
- Da Nang: Floor 9, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
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