SICK GTB2S-N5311, part number 1064349, is a background suppression photoelectric proximity sensor from the SICK G2 family in the G2 Slim housing. It has a NPN switching output set to light switching, a sensing range of 1 mm … 18 mm and is connected by male connector m8, 3-pin, 200 mm cable. Renda Trading Company supplies it as a genuine SICK part.
Background suppression is what makes this sensor useful on a real machine. The optics measure where the reflected light lands rather than how much of it comes back, so the sensor sees the object in front of it and ignores whatever stands behind it. A dark box on a bright conveyor belt, a matt part in front of a shiny guard, a black label on a white carton: all of these switch reliably because the decision is based on distance, not on colour or surface finish.
The G2 Slim housing measures 7.7 mm x 21.8 mm x 13.5 mm, so the sensor fits into the narrow gaps of packaging machines, small handling units, assembly cells and vending or banking machines where a standard sensor will not go. Protection is IP67 and the electronics are reverse-polarity protected, short-circuit protected and interference suppressed.
Technical Data
| Brand | SICK |
|---|---|
| رمز الموديل | GTB2S-N5311 |
| SICK part number | 1064349 |
| Product family | G2 (G2 Slim) |
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 1 mm … 18 mm |
| Sensing range | 4 mm … 15 mm |
| Background suppression | typically from 20 mm |
| Type of light | Visible red light |
| Light source | PinPoint LED |
| Wavelength | 640 nm |
| Light spot size (distance) | diameter 2 mm at 8 mm |
| Adjustment | None |
| Switching output | NPN |
| Switching mode | Light switching |
| Supply voltage | 10 V DC … 30 V DC |
| Current consumption | 20 mA (without load) |
| Output current | max. 50 mA |
| Response time | < 0.6 ms |
| Switching frequency | 800 Hz |
| Connection type | Male connector M8, 3-pin, 200 mm cable |
| Dimensions (W x H x D) | 7.7 mm x 21.8 mm x 13.5 mm |
| الوزن | 17.5 g |
| Housing material | Plastic, ABS |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Ambient operating temperature | -25 °C … +50 °C |
| Circuit protection | Reverse polarity, short-circuit and overcurrent protected, interference suppressed |
How to Read the Type Code GTB2S-N5311
SICK builds the G2 type code from the sensing principle, the housing and the wiring, so once the pattern is clear any part number in the family can be read at a glance.
- GTB2S identifies the sensing principle and the housing. GTB is background suppression, GTE is energetic proximity, GL is retro-reflective and GSE is a through-beam receiver. The digit 2 is the G2 family, and the final letter is the housing: S for G2 Slim and F for G2 Flat.
- N is the output: NPN output, light switching. P and N are light switching, F and E are the dark-switching versions of the same electronics.
- 5 is the electrical connection: male connector M8, 3-pin on a 200 mm cable.
- The last three digits are the SICK device version, which fixes the sensing range and the optical set-up. On this model that is 311.
The number that matters when ordering is the SICK part number, 1064349, because it identifies exactly one article.
Typical Applications
SICK GTB2S-N5311 is used wherever a small, dependable switching signal is needed in a space that will not take a standard sensor. Common jobs include:
- Packaging machines: detecting cartons, blisters, flow-wrap bags and labels close to the transport surface
- Small parts handling: presence check in feeders, escapements and pick-and-place stations
- Assembly cells where the sensor has to sit inside the fixture and ignore the metal behind the part
- Vending, banking and gaming machines, where the sensor must fit into a narrow slot
- Printing and paper handling: sheet, tab and edge detection
The NPN output makes it easy to wire into the digital inputs of the usual PLCs. NPN is the normal choice for Japanese and many Chinese machine controls with sourcing inputs. In light switching the output is on when the sensor sees the object (or, on a through-beam or retro-reflective sensor, when the beam is clear).
Other GTB2S Models
Every GTB2S version that Renda Trading supplies is listed below. The electronics are the same across a range group; only the output, the switching mode and the connection change.
| رمز الموديل | Part no. | Sensing range max. | Output | Switching mode | Connection |
|---|---|---|---|---|---|
| GTB2S-E1311 | 1064348 | 1 mm … 18 mm | NPN | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-F5311 | 1064347 | 1 mm … 18 mm | PNP | Dark switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-F1311 | 1064346 | 1 mm … 18 mm | PNP | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-N5311 | 1064349 | 1 mm … 18 mm | NPN | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-N1311 | 1062840 | 1 mm … 18 mm | NPN | Light switching | Cable, 3-wire, 2 m |
| GTB2S-P5311 | 1062872 | 1 mm … 18 mm | PNP | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-P1311 | 1064345 | 1 mm … 18 mm | PNP | Light switching | Cable, 3-wire, 2 m |
| GTB2S-E1331 | 1064354 | 1 mm … 36 mm | NPN | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-F5331 | 1064353 | 1 mm … 36 mm | PNP | Dark switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-F1331 | 1064352 | 1 mm … 36 mm | PNP | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-N5331 | 1064355 | 1 mm … 36 mm | NPN | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-N1331 | 1062929 | 1 mm … 36 mm | NPN | Light switching | Cable, 3-wire, 2 m |
| GTB2S-P5331 | 1062930 | 1 mm … 36 mm | PNP | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-P1331 | 1064351 | 1 mm … 36 mm | PNP | Light switching | Cable, 3-wire, 2 m |
| GTB2S-E5451 | 1064344 | 2 mm … 120 mm | NPN | Dark switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-E1451 | 1064342 | 2 mm … 120 mm | NPN | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-F5451 | 1064341 | 2 mm … 120 mm | PNP | Dark switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-F1451 | 1064340 | 2 mm … 120 mm | PNP | Dark switching | Cable, 3-wire, 2 m |
| GTB2S-N5451 | 1064343 | 2 mm … 120 mm | NPN | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-N1451 | 1060203 | 2 mm … 120 mm | NPN | Light switching | Cable, 3-wire, 2 m |
| GTB2S-P5451 | 1060204 | 2 mm … 120 mm | PNP | Light switching | Male connector M8, 3-pin, 200 mm cable |
| GTB2S-P1451 | 1060205 | 2 mm … 120 mm | PNP | Light switching | Cable, 3-wire, 2 m |
The Rest of the SICK G2 Family
The G2 family covers four sensing principles in two miniature housings. If this model is not the right principle for your job, the others are on the site:
- GTB2S background suppression, G2 Slim housing (this page)
- GTB2F background suppression, G2 Flat housing
- GTE2F energetic proximity, G2 Flat housing
- GL2S retro-reflective, G2 Slim housing
- GSE2S through-beam, G2 Slim housing
Frequently Asked Questions
What is SICK GTB2S-N5311?
SICK GTB2S-N5311, part number 1064349, is a G2 miniature photoelectric sensor in the G2 Slim housing. Its functional principle is background suppression, the sensing range is 1 mm … 18 mm, the output is NPN with light switching, and the connection is male connector m8, 3-pin, 200 mm cable.
What is the sensing range of GTB2S-N5311?
The maximum sensing range is 1 mm … 18 mm. The reliable working range quoted by SICK is 4 mm … 15 mm. Background suppression works typically from 20 mm.
Is GTB2S-N5311 PNP or NPN?
It has a NPN switching output. NPN switches the negative line to the input, which is what many Japanese and Chinese machine controls expect. SICK offers the same sensor with the opposite output under a different type code, so check the model table on this page before ordering.
Is GTB2S-N5311 light switching or dark switching?
Light switching. The output is active when the receiver sees light.
How is GTB2S-N5311 connected?
The connection is male connector m8, 3-pin, 200 mm cable. Supply voltage is 10 V DC to 30 V DC with a current consumption of about 20 mA, and the output can drive up to 50 mA. The outputs are short-circuit and overcurrent protected and the supply is reverse-polarity protected.
What are the dimensions of GTB2S-N5311?
The G2 Slim housing measures 7.7 mm x 21.8 mm x 13.5 mm (W x H x D) and the sensor weighs about 17.5 g. Enclosure rating is IP67 and the operating temperature range is -25 °C … +50 °C.
What is the difference between background suppression and a normal diffuse sensor?
A diffuse (energetic) sensor decides on how much light comes back, so a dark object close by and a bright object further away can look the same to it. A background suppression sensor measures where the reflected light lands on the receiver, which means it decides on distance. It detects dark objects reliably and ignores whatever stands behind them, which is why it is the safer choice on conveyors and in machine fixtures.
Is GTB2S-N5311 a genuine SICK product?
Yes. Renda Trading Company supplies original SICK sensors with SICK part numbers. The data on this page is taken from the official SICK data sheet for GTB2S-N5311, part number 1064349.
How do I order GTB2S-N5311 from Renda Trading?
Send us the type code GTB2S-N5311 or the part number 1064349 with the quantity you need and we will reply with price, availability and delivery time. If you are replacing a failed sensor, send a photo of the label and we will confirm the exact model.
Ordering SICK GTB2S-N5311 from Renda Trading
Renda Trading Company supplies genuine SICK sensors to factories and machine builders in Saudi Arabia, Iraq, the UAE and the wider Arab region. We quote per enquiry, because price depends on quantity and delivery time.
- Type code: GTB2S-N5311
- SICK part number: 1064349
- Brand: SICK
- Family: G2 miniature photoelectric sensors, G2 Slim housing
- Availability: contact us for current stock and lead time
Send the part number and quantity and we will come back with a quotation. If you are unsure which version you need, tell us the object you have to detect, the distance, the space available and whether your controller needs PNP or NPN, and we will confirm the right model first.



