Proximity Photoelectric Sensor GTB6-P4211 SICK – PNP, 250 mm, IP67
Overview:
The GTB6-P4211 is a Background Suppression photoelectric proximity sensor from SICK’s G6 series. Featuring PinPoint red LED technology, it delivers precise object detection within a range of 5–250 mm (max.), PNP output, 1,000 Hz switching frequency, and IP67 protection. It is an excellent solution for high-accuracy applications on conveyors, packaging lines, robotics, and industrial automation systems.
Product Overview of the Proximity Photoelectric Sensor GTB6-P4211
The GTB6-P4211 belongs to SICK’s G6 Miniature series. It utilizes Background Suppression technology, which reliably distinguishes the target object from the background, even when the background is highly reflective or varies in distance.
Equipped with a PinPoint red LED (650 nm) that produces a small, focused light spot, the sensor ensures highly accurate detection of small objects on fast-moving conveyors or inside automated machinery. Its compact design, standard M8 connector, and IP67 protection rating make it ideal for continuous operation in demanding industrial environments such as food & beverage, logistics, electronics, and machinery manufacturing.
Key Features:
- Maximum sensing distance: 5–250 mm (90% remission); standard: 35–140 mm
- Output: PNP, max. output current ≤ 100 mA
- Supply voltage: 10–30 VDC, no-load current 30 mA
- Protection rating: IP67, suitable for dusty and humid environments
- Connection: M8, 4-pin male connector
Technical Specifications GTB6-P4211
| Parameter |
Value |
| Model |
GTB6-P4211 |
| Part No. |
1052438 |
| Functional principle |
Photoelectric proximity sensor |
| Functional principle detail |
Background Suppression |
| Dimensions (W × H × D) |
12 × 31.5 × 21 mm |
| Sensing Distance (Max.) |
5 mm – 250 mm (90% remission) |
| Sensing Distance (Standard) |
35 mm – 140 mm |
| Light Source |
PinPoint red LED, 650 nm |
| Light Spot Size |
Ø 6 mm at 100 mm distance |
| Sensitivity Adjustment |
5-turn mechanical potentiometer |
| Supply Voltage (UB) |
10–30 VDC |
| Ripple |
± 10 % |
| Current Consumption |
30 mA (no load) |
| Output Type |
PNP |
| Switching Mode |
Light/Dark switching (selectable via rotary switch) |
| Output Current (Max.) |
≤ 100 mA (≤ 50 mA khi UB > 24V) |
| Response Time |
< 625 µs |
| Switching Frequency |
1,000 Hz (light/dark ratio 1:1) |
| Circuit Protection |
A (VS connections reverse-polarity protected); B (inputs and output reverse-polarity protected); D (outputs overcurrent and short-circuit protected) |
| Connection |
M8, 4-pin male connector |
| Housing Material |
Plastic, ABS/PC |
| Optical Material |
Plastic, PMMA |
| Weight |
20 g |
| Protection Rating |
IP67 |
| Operating Temperature |
–25°C … +55°C |
| Storage Temperature |
–40°C … +70°C |
| Certifications |
EU/UK/ACMA/Morocco CoC, China RoHS, cULus, DIN EN 62471 |
Source: SICK Official Datasheet GTB6-P4211. Download datasheet link
Applications of GTB6-P4211 in Industry
- Packaging & Food Processing Lines: Reliable detection on high-speed conveyors thanks to 1,000 Hz switching frequency and <625 µs response time. Background Suppression eliminates false signals from conveyor surfaces.
- Electronics & Semiconductor: The precise Ø6 mm light spot at 100 mm enables accurate detection of small components on PCBs or trays.
- Logistics & Material Handling: 250 mm maximum range is ideal for object monitoring on medium-sized conveyors. 5-turn adjustment allows fine-tuning for different product types.
- Industrial Robotics & Automation: Ultra-compact size and standard M8 connector enable easy integration into robot grippers and automation cells.
- Food & Pharmaceutical Machinery: IP67 rating ensures full dust protection and resistance to water jets in wash-down environments. ABS/PC housing offers good resistance to mild chemicals.
Comparison: GTB6-P4211 vs GTB6-P4212
Both models belong to the G6 Background Suppression series and share identical technical specifications. The only difference is the included mounting accessories.
| Parameter |
GTB6-P4211 |
GTB6-P4212 |
| Part No. |
1052438 |
1052442 |
| Operating Principle |
Background Suppression |
Background Suppression |
| Sensing Range (Max.) |
5–250 mm |
5–250 mm |
| Output |
PNP |
PNP |
| Switching Frequency |
1,000 Hz |
1,000 Hz |
| Connection |
M8, 4-pin male |
M8, 4-pin male |
| Protection Rating |
IP67 |
IP67 |
| Included Accessory |
None |
Stainless steel bracket BEF-W100-A |
| Recommended For |
Custom mounting setups |
Quick wall or rail mounting |
Conclusion:
- Choose GTB6-P4211 if you already have mounting brackets or prefer customized installation.
- Choose GTB6-P4212 if you need a complete ready-to-install package with the stainless steel bracket.
Frequently Asked Questions (FAQ)
Q1. What type of sensor is the GTB6-P4211?
The GTB6-P4211 is a Background Suppression photoelectric proximity sensor from SICK, featuring PinPoint red LED technology and a maximum sensing distance of 250 mm.
Q2. Does the GTB6-P4211 have PNP or NPN output?
The GTB6-P4211 features PNP transistor output. For NPN versions, please refer to the GTB6-N series.
Q3. Can the GTB6-P4211 detect small objects?
Yes. The sensor’s PinPoint red LED creates a very small light spot (Ø6 mm at 100 mm), making it highly suitable for detecting small objects in automation equipment, electronics assembly, and high-speed conveyors.
Q4. What is the difference between GTB6-P4211 and GTB6-P4212?
Both models have identical technical specifications. The only difference is that the GTB6-P4212 includes a stainless steel mounting bracket (BEF-W100-A), while the GTB6-P4211 does not.
Q5. Can the GTB6-P4211 be used in dusty or humid environments?
Yes. With an IP67 protection rating, the sensor is fully dust-tight and resistant to water jets, making it suitable for demanding production and packaging lines.
Contact for Purchasing Proximity Photoelectric Sensor GTB6-P4211
AUMI – Official SICK Distributor in Vietnam. Full manufacturer warranty, genuine CO/CQ documents, and 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
Addresses:
- Hanoi: B44, Villa Area, Viet Hung Urban Area, Viet Hung Ward
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh, Bay Hien Ward
- Da Nang: 9th Floor, PV Bank Building, No. 2 30-4 Street, Hoa Cuong Ward
