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From Fortune 500 enterprises to innovative startups, leading companies choose Marvo for reliable automation and control components.
"Found the part we needed at the best price. Spoke to Rob to make sure the part was actually in stock, as many companies don't actually have the part available to ship. It was in stock ready and the part was checked and shipped and received within a couple of days from their German stock. Would definitely use again and recommend."
The Sick WTB4 Series Photoelectric Proximity Sensor is a state-of-the-art sensing solution designed for a wide range of industrial applications. This compact and durable sensor offers both PNP and NPN output types, ensuring versatility and compatibility with various control systems. Its rectangular shape and small dimensions (16 mm x 39.5 mm x 12 mm) make it an ideal choice for installations where space is at a premium.
Equipped with a PinPoint LED, the sensor provides precise detection with a visible red light, making alignment and positioning straightforward. The light spot size is optimised for consistent detection, with a diameter of approximately 7 mm at a 50 mm distance. The sensor operates within a supply voltage range of 10 V DC to 30 V DC and boasts a quick response time of less than 0.5 ms, which is critical for high-speed processes.
The WTB4-3P2161 is designed to withstand challenging industrial environments, featuring an IP67 and IP66 rating for dust and water resistance. It can operate in a wide temperature range from -40 °C to +60 °C, ensuring reliability in both cold and hot conditions. The sensor's housing is made of robust ABS plastic, and the front lens is crafted from PMMA, contributing to its overall durability.
This sensor is an excellent choice for automation tasks that require precise object detection, including small parts detection and precise positioning. Its advanced features and robust construction make it a valuable component in any automated system, contributing to enhanced efficiency and productivity.
| Specification | Description |
|---|---|
| Part Number | WTB4-3P2161 |
| Alternative Part Number | WTB43P2161 |
| Manufacturer | Sick |
| Series | WTB4 |
| Type | Photoelectric Proximity Sensor |
| Shape | Rectangular |
| Output Type | PNP & NPN |
| Light Source | PinPoint LED |
| Light Type | Visible red light |
| Wavelength | 650 nm |
| Supply Voltage | 10 V DC to 30 V DC |
| Ripple | < 5 Vss |
| Current Consumption | 20 mA |
| Protection Class | III |
| Output Current | ≤ 100 mA |
| Response Time | < 0.5 ms |
| Switching Frequency | 1,000 Hz |
| Switching Mode | Light-switching |
| Connection Type | Connector M8, 3-pin |
| Housing Material | Plastic, ABS |
| Front Screen Material | Plastic, PMMA |
| Weight | 30 g |
| Enclosure Rating | IP67, IP66 |
| Operating Temperature Range | –40 °C to +60 °C |
| Storage Temperature Range | –40 °C to +75 °C |
| Scanning Distance | 4 mm to 150 mm |
| Adjustability | Potentiometer, 5 revolutions |
| Special Features | Suitable for detecting small objects, background suppression |
| Commodity Code | 903180 |
| UL File Number | NRKH.E181493 & NRKH7.E181493 |
| eCl@ss Codes | 5.0: 27270904, 5.1.4: 27270904, 6.0: 27270904, 6.2: 27270904, 7.0: 27270904 |
Absolutely fantastic service. Rob was very helpful. Great communication. Requested part was shipped in no time.Konrad Eliaszuk
Found the component i was looking for ad a great price. Great support from the staff as I was paying using a wire transfer. - Quick delivery and very good packaging.Adriano Tiberi
Found the part we needed at the best price. Spoke to Rob to make sure the part was actually in stock, as many companies don't actually have the part available to ship. It was in stock ready and the part was checked and shipped and received within a couple of days from their German stock. Would definitely use again and recommend.Chris Sentance
FIRST TIME WORKING WITH MARVO. THEY HAD WHAT I NEEDED AND TOOK GREAT CARE OF ME AND GOT MY ORDER OUT IMMEDITELY. WAS VERY IMPRESSED WITH THE SERVICE AND THE PERSON I SPOKE WITH. I WILL DEFINITELY WORK WITH THEM QGAIN IN THE FUTURE.Robert Cohen
After ordering an urgent part from Marvo i received a great level of customer service and Rob was very helpful.Claire Hinchliff
Excellent service partially from Mark who stayed late to ensure the part arrived with me same day as this was a critical part for me even though this was my first time using Marvo. I will defiantly be using again.Josh Holt
Extremely Helpful. Shipped me a replacement unit next day and i was up and running within 24 hours. Replacement new from machinery manufacturers was on a 7 day lead time.Sean Conlin
FIRST TIME WORKING WITH MARVO. THEY HAD WHAT I NEEDED AND TOOK GREAT CARE OF ME AND GOT MY ORDER OUT IMMEDITELY. WAS VERY IMPRESSED WITH THE SERVICE AND THE PERSON I SPOKE WITH. I WILL DEFINITELY WORK WITH THEM QGAIN IN THE FUTURE.Robert Cohen
Excellent service partially from Mark who stayed late to ensure the part arrived with me same day as this was a critical part for me even though this was my first time using Marvo. I will defiantly be using again.Josh Holt
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