- Automation & ControlView all 1,652 products
- AC Drives
- Industrial Communications
- PLC & I/O Cards
- Vibration Monitoring
- Automation Accessories
- Controllers & Data Acquisition
- CCTV & Security
- Safety Switches & Guard Locking
- Encoders
- Industrial Computers
- Servo Drives
- Isolator & Barrier
- Motor Soft Starters
- HMI Displays
- Pneumatic Cylinders
- Automation Software
- Machine Vision
- Robotics
Brand: SICK
SICK WTT12L-B2566 WTT12 PowerProx Diffuse Photoelectric Sensor
Description
WTT12L-B2566, part no. 1072619, is a SICK WTT12 PowerProx diffuse sensor in which sender and receiver sit in one housing and the object itself acts as the reflector. The catalogue summary lists: product version: PowerProx Distance; sensing range max.: 50 mm … 3,800 mm; functional principle: Photoelectric proximity sensor; functional principle detail: Background suppression, Optical time-of-flight; switching output: Push-pull: PNP/NPN.
Understanding the WTT12L-B2566 before you specify it
A diffuse photoelectric sensor sends light forward and evaluates what the object reflects back. The signal depends on colour, surface finish and size of the object, so the range given in the data sheet applies to a reference object of known remission.
Dark or matt objects are detected at shorter distances, light or glossy ones further away. Dirt on the lens reduces the reflected signal over time, so an LED that shows the signal level helps maintenance staff to see when cleaning is due before a failure occurs.
Technical specifications
| Parameter | Specification |
|---|---|
| Type code | WTT12L-B2566 |
| Part number | 1072619 |
| Product family | WTT12 PowerProx |
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression, Optical time-of-flight |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 50 mm … 3,800 mm |
| Sensing range | 100 mm … 3,800 mm; |
| Light source | Laser |
| Light spot size (distance) | Ø 18 mm (3,800 mm) |
| Laser class | 1 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.11) |
| Adjustment | Potentiometer, 4 turns (2 x) |
| Safety-related parameters: MTTFD | 133 years |
| Safety-related parameters: DCavg | 0 % |
| Safety-related parameters: TM (mission time) | 20 years |
| Supply voltage UB | 10 V DC … 30 V DC |
| Current consumption | 70 mA |
| Switching output | Push-pull: PNP/NPN |
| Number of switching outputs | 2 (Q1, Q2) |
| Switching mode | Light switching |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 5 ms |
| Switching frequency | 100 Hz |
| Analog output | – |
| Input | Sender off |
| Circuit protection | A; B; C |
| Enclosure rating | IP67 |
| Warm-up time | < 15 min |
| Dimensions (W x H x D) | 20 mm x 49.6 mm x 44.2 mm |
| Housing material | Plastic, VISTAL® |
| Declarations and certificates in the data sheet | EU declaration of conformity; UK declaration of conformity; ACMA declaration of conformity; Moroccan declaration of conformity; China RoHS; China Compulsory Product Certification (CCC) exempt; cULus certificate; Laser safety (IEC 60825-1) certificate |
Selection and installation notes for WTT12L-B2566
Supply and signal data as listed: current 70 mA; outputs push-pull: PNP/NPN; supply 10 V DC … 30 V DC; range 50 mm … 3,800 mm; response time ≤ 5 ms; connection plug, M12, 5-pin; frequency 100 Hz.
Fitting and site conditions are covered by these entries: operating temperature: –35 °C … +50 °C; dimensions: 20 mm x 49.6 mm x 44.2 mm; light source: visible red light; enclosure rating: IP67; wavelength: 658 nm; housing: plastic, VISTAL®; weight: 48 g.
Before ordering, confirm the sensing range, the adjustment method, the output type and polarity, and the connection.
For installation, fix the sensor so the object passes at the distance where the signal is strongest, keep the lens clean and set the sensitivity with the real product and the real background.
Related SICK products: SICK WL11G-2B2531 Photoelectric Sensor, SICK VL12-2P430 V12 Retro-Reflective Photoelectric Sensor, SICK VTE18-4P4240 M18 Diffuse Photoelectric Sensor, 400 mm, SICK WL12-3P2431 Retro-Reflective Photoelectric Sensor, 5 m, SICK WTV4FE-8416A120A00 W4 IO-Link Photoelectric Sensor and SICK GL6-P4212 Retro-Reflective Photoelectric Sensor, 5 m.
Documents and quotation
You can download the SICK data sheet for WTT12L-B2566 (part no. 1072619) from this page. Quotations are prepared by Seven Star LLC, an independent supplier in Muscat, once you send the part number, quantity and site through the RFQ form. Browse more in Sensors & Transmitters. Compare the complete type code with your existing unit and controller before ordering; the data sheet prevails if it differs from this page.
Datasheets & Documents
- Datasheet SICK WTT12L-B2566 official data sheet (part no. 1072619) Download
Reviews (0)
About brand
SICK is the German maker of industrial sensors: photoelectric and proximity sensors, safety laser scanners and light curtains, encoders, distance sensors, code readers and gas analysers. Erwin Sick, an optics engineer, founded it in Munich in 1946, and in 1952 it introduced its first marketable accident-prevention light curtain, which protected press operators by stopping the machine when a hand broke the light beam. The company moved to Waldkirch in the Black Forest in 1956 and is still headquartered there. It is a privately held company, and has been an Aktiengesellschaft (AG) since 1996.
SICK company profile
| Founded | 1946, Munich, Germany, by Erwin Sick (1909–1988) |
|---|---|
| Headquarters | Waldkirch, Baden-Württemberg, Germany (since 1956) |
| Ownership | Privately held; after the founder's death in 1988 his widow Gisela Sick became the main shareholder. Legal form SICK AG since 1996 |
| Size | More than 12,000 employees and group revenue of about EUR 2.3 billion (company figures for 2023) |
| First breakthrough | Accident-prevention light curtain for presses, shown in Hanover in 1952 |
| International growth | First foreign subsidiary in France in 1972, United States in 1976; today sales and service companies worldwide |
| Product families | Photoelectric, inductive, capacitive, magnetic and ultrasonic sensors; safety laser scanners, light curtains, safety controllers and relays; encoders and motor feedback systems; distance sensors and LiDAR; barcode and 2D code readers and machine vision; gas analysers, dust and flow measurement for process and emissions monitoring |
Milestones
- 1946: Erwin Sick receives a licence to run his engineering firm in Munich.
- 1952: The first marketable accident-prevention light curtain is presented in Hanover and goes into series production.
- 1956: The company moves to Waldkirch with 25 employees.
- 1972 and 1976: Subsidiaries are founded in France and the United States.
- 1996: SICK becomes an Aktiengesellschaft.
- Today: Sensors for factory and logistics automation, machine safety and process analysis, with a large share of revenue outside Germany.
Choosing a SICK sensor
For object detection, the sensing principle comes first. A retro-reflective sensor (WL series) sends light to a reflector and switches when an object breaks the beam; it is reliable over long distances and easy to align. A sensor with background suppression (WTB series) detects an object at a set distance and ignores what is behind it, which suits conveyors with shiny or dark backgrounds. A through-beam pair (WS/WE) gives the longest range and the highest reliability in dust. For transparent bottles and film, use a model built for transparent objects (for example WL12G-3B or WL150-P420). The digits in the code also matter: "P" usually means a PNP output and "N" NPN, and the last digits set the connector or cable. For machine guarding, a safety laser scanner such as nanoScan3 or microScan3 protects an area, while a safety controller such as Flexi Soft combines several safety devices.
Where SICK products are used
In Oman and the GCC, SICK sensors are used in packaging and bottling lines, food and beverage plants, logistics and airport baggage handling, cement and steel plants, ports and cranes, automated warehouses, and on machines built by European OEMs. SICK safety scanners guard robots and automated guided vehicles, and its encoders give position feedback on motors, hoists and conveyors.
SICK products we list
| Family | Examples |
|---|---|
| Photoelectric sensors | WL12-3P2431, WTB12-3P2431, GTB6-P4211, VL18-4P3240, WL12G-3B2531, WS/WE100, KT5W contrast, W26 IO-Link |
| Proximity, cylinder and ultrasonic sensors | IME12-08NPSZC0S, IME18-05BPSZC0S, MZT8, UM18 4-20 mA, UM30, UFN3 fork |
| Machine safety | nanoScan3, microScan3, S300 Professional, Flexi Soft FX3-CPU1, FX3-XTIO, ReLy OSSD |
| Encoders and motor feedback | DFS60B, AFM60 PROFINET, AFS60 SSI, ATM60 PROFIBUS, SRS50, EFS50 |
| Distance sensors and code readers | DT50, DL50, DT35, Lector632 |
Ordering SICK products: what we need
Send the type code and the 7-digit SICK part number from the label (for example WTB12-3P2431 together with its part number). For a replacement sensor, add the output (PNP or NPN), connection (M8, M12 or cable) and sensing distance. For encoders, add the interface (incremental, SSI, PROFIBUS, PROFINET), resolution and shaft type. For safety scanners, tell us the model and whether the existing configuration needs to be kept.
Facts checked against SICK's published company history and annual figures, October 2026.
Browse SICK products by category: Sensors & Transmitters.
FAQ
Questions about the SICK WTT12L-B2566 WTT12 PowerProx Diffuse
Answers from our engineering team on installation, compatibility and integration.
01What is the SICK WTT12L-B2566?
It is a SICK diffuse photoelectric sensor (WTT12 PowerProx), part no. 1072619. The catalogue summary reads: Product version: PowerProx Distance; Sensing range max.: 50 mm ... 3,800 mm; Functional principle: Photoelectric proximity sensor; Functional principle detail: Background suppression, Optical time-of-flight.
02Which supply voltage applies to the WTT12L-B2566?
Supply voltage is 10 V DC ... 30 V DC. Check the output and interface rows in the table for the signal levels.
03What protection rating and temperature range are given?
Enclosure rating: IP67. Ambient operating temperature: –35 °C ... +50 °C. Confirm both against the site before ordering.
04Does the page include the data sheet?
Yes. The official SICK data sheet for part no. 1072619 is attached as a PDF and linked on this page; where it differs from the page text, the data sheet applies.
05What should be confirmed before ordering the WTT12L-B2566?
Compare the full type code and part number 1072619 with the device being replaced, check supply, output or interface and mounting, and send the details through the RFQ form. Seven Star LLC is an independent supplier, not a SICK partner.
Reviews
There are no reviews yet.